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Full text of "Connecticut Energy Code"

TABLE OF CONTENTS 

STATE BUILDING CODE 

2005 CONNECTICUT SUPPLEMENT 

Repealed 29-252-1 c 

State Building Code - Connecticut Supplement 29-252-1 d 

Section Page 

Amendments to the 2003 International Building Code 2 

Amendments to the ICC/ANSI All 7.1 -2003 63 

Amendments to the 2003 International Existing Building Code 65 

Amendments to the 2003 International Plumbing Code 74 

Amendments to the 2003 International Mechanical Code 81 

Amendments to the 2003 International Energy Conservation Code 87 

Amendments to the 2003 International Residential Code 90 

Amendments to the 2005 NFPA 70 National Electrical Code 112 



87 



AMENDMENTS TO THE 2003 INTERNATIONAL ENERGY CONSERVATION CODE 

CHAPTER 1 -ADMINISTRATION 

(Amd) 101.1 Title. These regulations shall be known as the 2003 International Energy 
Conservation Code portion of the 2005 State Building Code, hereinafter referred to as "the 
code" or "this code". 

(Amd) 101.2 Scope. This code establishes minimum prescriptive and performance-related 
regulations for the design of energy-efficient buildings and structures or portions thereof that 
provide facilities or shelter for public assembly, educational, business, mercantile, institutional, 
storage and residential occupancies, as well as those portions of factory and industrial 
occupancies designed primarily for human occupancy. This code thereby addresses the design 
of energy-efficient building envelopes and the selection and installation of energy-efficient 
mechanical, service water-heating, electrical distribution and illumination systems and 
equipment for the effective use of energy in these buildings and structures. 

(Amd) 101.2.1 Exempt buildings. Buildings and structures indicated in Sections 101.2.1.1 
through 101.2.1.3 shall be exempt from the building envelope provisions of this code, but shall 
comply with the provisions for building, mechanical, service water-heating and lighting systems. 

(Add) 101.2.1.3 Renewable energy sources. Buildings and structures for which heating and 
cooling is supplied solely by utilization of non-purchased renewable energy sources including, 
but not limited to, on-site wind, on-site water or on-site solar power, or wood-burning heating 
appliances that do not rely on backup heat from other purchased, non-renewable sources. 

(Add) 101.5 Administrative matters not provided for. Administrative matters not covered by 
this code are to be in accordance with the provisions of Chapter 1 of the 2003 International 
Building Code portion of the 2005 State Building Code. 

(Amd) 104.1 General. Two sets of construction documents and other supporting data shall be 
submitted to the building official at the time of application for the building permit. The 
construction documents and designs submitted under the provisions of Chapter 4 shall be 
prepared by a registered design professional when required by the provisions of chapter 390 or 
391 of the Connecticut General Statutes. 

Exception: The building official is authorized to waive the submission of construction 
documents and other supporting data not required to be prepared by a registered 
design professional if the work proposed is not required by the provisions of this code, 
or if it is found that the nature of the work applied for is such that review of the 
construction documents is not necessary to obtain compliance with this code. 

CHAPTER 2 - DEFINITIONS 

(Amd) 201.3 Terms defined in other codes. Where terms are not defined in this code and are 
defined in other codes adopted as portions of the 2005 State Building Code, such terms shall 
have the meanings ascribed to them as in those codes. 

(Add) 202.1 Definitions. Add or amend the following definitions: 

(Add) BUILDING OFFICIAL. The officer or other designated authority charged with the 
administration and enforcement of this code, or a duly authorized representative. Also known 
as the local building official or code official. 



88 



(Add) FULL CUTOFF LUMINAIRE. A luminaire that allows no direct light emissions above a 
horizontal plane through the luminaire's lowest light-emitting part. 

(Add) GREENHOUSE ADDITION. A one-story structure, enclosing a nonhabitable space, with 
glazing in excess of 50 per cent of the gross area of the exterior walls and roof. 

(Amd) SUNROOM ADDITION. A one-story structure, enclosing a habitable space, with glazing 
in excess of 40 per cent of the gross area of the exterior walls and roof, and with the area of 
windows and doors operable to the exterior equal to a minimum of 20 per cent of the area of the 
sunroom floor. 

CHAPTER 5 - RESIDENTIAL BUILDING DESIGN BY COMPONENT PERFORMANCE 
APPROACH 

(Add) 502.2.5.1 Prescriptive requirements for residential greenhouse and sunroom 
additions. Unconditioned greenhouse and sunroom additions that are freestanding or 
thermally isolated from the conditioned space are exempt from the requirements of this code. 
As an alternative to demonstrating compliance with other requirements of this code, conditioned 
greenhouse and sunroom additions shall meet the prescriptive envelope criteria in Table 
502.2.5.1. R-values refer to installed insulation only, not to assembly values. For installed 
components with different R- or U- values, area-weighted averages shall be used to determine 
compliance with Table 502.2.5. 1 . 

Greenhouse additions that are freestanding or that are attached to the outside of the 
building envelope capable of being closed off from the dwelling through the use of opaque walls 
and fixed or operable doors and windows shall be 400 square feet or less in area and shall 
have a maximum area-weighted fenestration U-value of 0.60. 

Sunroom additions that are free-standing or that are attached to the outside of the 
building envelope capable of being closed off from the dwelling through the use of opaque walls 
and fixed or operable doors and windows shall be 500 square feet or less in area and shall 
have a maximum area-weighted fenestration U-value of 0.50. Sunroom additions that are 
connected with a conditioned space via a permanent opening shall be 350 square feet or less in 
area and shall have a maximum area-weighted fenestration U-value of 0.45. 

(Add) Table 502.2.5.1. Prescriptive envelope component criteria for residential 
greenhouse and sunroom additions. 

Minimum opaque ceiling R-value R-19 

Minimum floor over unheated space R-value R-19 

Minimum opaque wall R-value R-1 1 

Minimum slab-on-grade perimeter insulation R-value R-5 

Minimum slab-on-grade perimeter insulation depth 2 feet 

CHAPTER 6 - SIMPLIFIED PRESCRIPTIVE REQUIREMENTS FOR DETACHED ONE- AND 
TWO-FAMILY DWELLINGS AND GROUP R-2, R-4 OR TOWNHOUSE RESIDENTIAL 
BUILDINGS 

(Add) 601.3.1.1 Urea-formaldehyde insulation. Pursuant to section 29-277 of the Connecticut 
General Statutes, urea-formaldehyde foamed-in-place insulation shall not be installed in any 
building or structure on or after June 1 , 1 981 . 



89 



CHAPTER 8 - DESIGN BY ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 

(Add) 803.2.8.2 Duct insulation values. Minimum duct insulation values stated in Section 
803.2.8 shall be installed R-values. 

(Add) 805.6.1 Light pollution controls. When the power for exterior lighting is supplied 
through the energy service to the building, luminaires used for exterior lighting shall be full cutoff 
luminaires. 

Exceptions: 

1 . Luminaires with an output of 150 Watts incandescent or less, or the equivalent light 
output. 

2. Luminaires intended to illuminate the fagade of buildings or to illuminate other objects 
including but not limited to flagpoles, landscape and water features, statuary and works 
of art. 

3. Luminaires for historic lighting on the premises of an historic building as defined in the 
2003 International Existing Building Code or within a designated historic district. 

4. Outdoor sports facility lighting of the participant sport area. 

5. Emergency exit discharge lighting. 

6. Low voltage landscape lighting. 

7. Sign illumination. 

8. Festoon lighting as defined in the 2005 NFPA 70 National Electrical Code. 

9. Temporary lighting for emergency, repair, construction, special events or similar 
activities. 



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INTERNATIONA 
CODECOUNCI 















2003 International Energy Conservation Code® 



First Printing: January 2003 

Second Printing: April 2003 

Third Printing: September 2003 

Fourth Printing: April 2004 
Fifth Printing: November 2004 
Sixth Printing: December 2005 



ISBN #1-892395-68-1 (soft) 

ISBN # 1-892395-67-3 (loose-leaf) 

ISBN # 1-892395-85-1 (e-document) 



COPYRIGHT © 2003 

by 

INTERNATIONAL CODE COUNCIL, INC. 



ALL RIGHTS RESERVED. This 2003 International Energy Conservation Code® is a copyrighted work owned by the International 
Code Council, Inc. Without advance written permission from the copyright owner, no part of this book may be reproduced, distrib- 
uted, or transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of 
example and not limitation, photocopying, or recording by or in an information storage retrieval system). For information on per- 
mission to copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL 
60478-5795 (Phone 800-214-4321). 

Trademarks: "International Code Council," the "International Code Council" logo and the "International Energy Conservation 
Code" are trademarks of the International Code Council, Inc. 



PRINTED IN THE U.S.A. 



E¥i 



Internationally, code officials recognize the need for a modem, up-to-date energy conservation code addressing the design of en- 
ergy-efficient building envelopes and installation of energy efficient mechanical, lighting and power systems through requirements 
emphasizing performance. The International Energy Conservation Code®, in this 2003 edition, is designed to meet these needs 
through model code regulations that will result in the optimal utilization of fossil fuel and nondepletable resources in all communi- 
ties, large and small. 

This comprehensive energy conservation code establishes minimum regulations for energy efficient buildings using prescriptive 
and performance-related provisions. It is founded on broad-based principles that make possible the use of new materials and new en- 
ergy efficient designs. This 2003 edition is fully compatible with all the International Codes ("I-Codes") published by the Interna- 
tional Code Council (ICC), including the International Building Code, ICC Electrical Code, International Existing Building Code, 
International Fire Code, International Fuel Gas Code, International Mechanical Code, ICC Performance Code, International 
Plumbing Code, International Private Sewage Disposal Code, International Property Maintenance Code, International Residen- 
tial Code, International Urban-Wildland Interface Code and International Zoning Code. 

The International Energy Conservation Code provisions provide many benefits, among which is the model code development 
process that offers an international forum for energy professionals to discuss performance and prescriptive code requirements. This 
forum provides an excellent arena to debate proposed revisions. This model code also encourages international consistency in the 
application of provisions. 



The first edition of the International Energy Conservation Code (1998) was based on the 1995 edition of the Model Energy Code 
promulgated by the Council of American Building Officials (CABO) and included changes approved through the CABO Code De- 
velopment Procedures through 1997. CABO assigned all rights and responsibihties to the International Code Council and its three 
statutory members: Building Officials and Code Administrators International, Inc. (BOCA), International Conference of Building 
Officials (ICBO) and Southern Building Code Congress International (SBCCI). This 2003 edition presents the code as originally is- 
sued, with changes approved through the ICC Code Development Process through 2002. A new edition such as this is promulgated 
every three years. 

With the development and publication of the family of International Codes in 2000, the continued development and maintenance 
of the model codes individually promulgated by BOCA ("BOCA National Codes"), ICBO ("Uniform Codes") and SBCCI ("Stan- 
dard Codes") was discontinued. This 2003 International Energy Conservation Code, as well as its predecessor — the 2000 edi- 
tion — is intended to be the successor energy conservation code to those codes previously developed by BOCA, ICBO and SBCCI. 

The development of a single set of comprehensive and coordinated International Codes was a significant milestone in the devel- 
opment of regulations for the built environment. The timing of this publication mirrors a milestone in the change in structure of the 
model codes, namely, the pending ConsoHdation of BOCA, ICBO and SBCCI into the ICC. The activities and services previously 
provided by the individual model code organizations will be the responsibility of the Consolidated ICC. 

This code is founded on principles intended to establish provisions consistent with the scope of an energy conservation code that 
adequately conserves energy; provisions that do not unnecessarily increase construction costs; provisions that do not restrict the use 
of new materials, products or methods of construction; and provisions that do not give preferential treatment to particular types or 
classes of materials, products or methods of construction. 

Adl@ptD@[ni 

The International Energy Conservation Code is available for adoption and use by jurisdictions internationally. Its use within a gov- 
ernmental jurisdiction is intended to be accomplished through adoption by reference in accordance with proceedings establishing 
the jurisdiction's laws. At the time of adoption, jurisdictions should insert the appropriate information in provisions requiring spe- 
cific local information, such as the name of the adopting jurisdiction. These locations are shown in bracketed words in small capital 
letters in the code and in the sample ordinance. The sample adoption ordinance on page v addresses several key elements of a code 
adoption ordinance, including the information required for insertion into the code text. 



The International Energy Conservation Code is kept up to date through the review of proposed changes submitted by code enforc- 
ing officials, industry representatives, design professionals and other interested parties. Proposed changes are carefully considered 
through an open code development process in which all interested and affected parties may participate. 



2003 INTERWATlOiSSAL ENERGY GOMSERVATJON CODE^ 



The contents of this work are subject to change both through the Code Development Cycles and the governmental body that en- 
acts the code into law. For more information regarding the code development process, contact the Code and Standard Development 
Department of the International Code Council. 

While the development procedure of the International Energy Conservation Code assures the highest degree of care, ICC and the 
founding members of ICC — ^BOCA, ICBO, SBCCI — their members, and those participating in the development of this code dp not 
accept any liabihty resulting from compliance or noncompliance with the provisions because ICC and its founding members do not 
have the power or authority to poUce or enforce compliance with the contents of this code. Only the governmental body that enacts 
the code into law has such authority. 

Letter Designations in Front of Section Numbers 

In each code development cycle, proposed changes to this code are considered at the Code Development Hearing by the Interna- 
tional Energy Conservation Code Development Committee, whose action constitutes a recommendation to the voting membership 
for final action on the proposed change. Proposed changes to a code section whose number begins with a letter in brackets are con- 
sidered by a different code development committee. For instance, proposed changes to code sections which have the letter [EB] in 
front (e.g., [EB] 101 .2.2. 1), are considered by the International Existing Building Code Development Committee at the Code Devel- 
opment Hearing. Where this designation is applicable to the entire content of a main section of the code, the designation appears at 
the main section number and title and is not repeated at every subsection in that section. 

The content of sections in this code which begin with a letter designation is maintained by another code development committee 
in accordance with the following: [B] = International Building Code Development Committee; [EB] = International Existing Build- 
ing Code Development Committee and [M] = International Mechanical Code Development Committee. 

tyiarginal Markings 

Sohd vertical lines in the margins within the body of the code indicate a technical change from the requirements of the 2000 edition. 
Deletion indicators ( a^ ) are provided in the margin where a paragraph or item has been deleted. 



2003 SiMTERf^ATSONAL ENERGY CONSERVATION CODE'' 



The International Codes are designed and promulgated to be adopted by reference by ordinance. Jurisdictions wishing to adopt the 
2003 International Energy Conservation Code as an enforceable regulation governing energy efficient building envelopes and in- 
stallation of energy efficient mechanical, lighting and power systems should ensure that certain factual information is included in 
the adopting ordinance at the time adoption is being considered by the appropriate governmental body. The following sample 
adoption ordinance addresses several key elements of a code adoption ordinance, including the information required for insertion 
into the code text. 



An ordinance of the [JURISDICTION] adopting the 2003 edition of the International Energy Conservation Code, regulating and 
governing energy efficient building envelopes and installation of energy efficient mechanical, lighting and power systems in the 

ISDICTION]; providing for the issuance of permits and collection of fees therefor; repeahng Ordinance No. of the 

iSDDCTlOlM] and all other ordinances and parts of the ordinances in conflict therewith. 



The [GOVERiMBMG BODY] of the [JURISDICTION] does ordain as follows: 

Sectiom l.That a certain document, three (3) copies of which are on file in the office of the [TITLE OF JURISDICTION'S KEEPER OF 
RECORDS] of [NAME OF JURISDICTION] , being marked and designated as the International Energy Conservation Code, 2003 edi- 
tion, including the Appendix [FILL IN THE APPENDIX DETAILS BEING ADOPTED], as pubhshed by the International Code Council, 
be and is hereby adopted as the Energy Conservation Code of the [JURISDICTION], in the State of [STATE NAME] for regulating and 
governing energy efficient building envelopes and installation of energy efficient mechanical, lighting and power systems as 
herein provided; providing for the issuance of permits and collection of fees therefor; and each and all of the regulations, provi- 
sions, penalties, conditions and terms of said Energy Conservation Code on file in the office of the [JURISDICTION] are hereby re- 
ferred to, adopted, and made a part hereof, as if fully set out in this ordinance, with the additions, insertions, deletions and changes, 
if any, prescribed in Section 2 of this ordinance. 

Sectiom l.The following sections are hereby revised: 

Section 101.1. Insert: [NAME OF JURISDICTION]. 

Section 3.That Ordinance No. of [JURISDICTION] entitled [FILL IN I-IERE THE COMPLETE TITLE OF THE ORDINANCE OR 

ORDINANCES IN EFFECT AT THE PRESENT TIME SO THAT THEY WILL BE REPEALED BY DEFINITE MENTION] and all Other ordi- 
nances or parts of ordinances in conflict herewith are hereby repealed. 

Section 4.That if any section, subsection, sentence, clause or phrase of this ordinance is, for any reason, held to be unconstitutional, 
such decision shall not affect the vahdity of the remaining portions of this ordinance. The [GOVERN8NG BODY] hereby declares that 
it would have passed this ordinance, and each section, subsection, clause or phrase thereof, irrespective of the fact that any one or 
more sections, subsections, sentences, clauses and phrases be declared unconstitutional. 

Sectiom S.That nothing in this ordinance or in the Energy Conservation Code hereby adopted shall be construed to affect any suit or 
proceeding impending in any court, or any rights acquired, or liability incurred, or any cause or causes of action acquired or exist- 
ing, under any act or ordinance hereby repealed as cited in Section 2 of this ordinance; nor shall any just or legal right or remedy of 
any character be lost, impaired or affected by this ordinance. 

Sectiom 6.That the [JURISDICTION'S KEEPER OF RECORDS] is hereby ordered and directed to cause this ordinance to be pub- 
lished. (An additional provision may be required to direct the number of times the ordinance is to be pubhshed and to specify that it 
is to be in a newspaper in general circulation. Posting may also be required.) 

Sectiom T.That this ordinance and the rules, regulations, provisions, requirements, orders and matters established and adopted 
hereby shall take effect and be in full force and effect [TIME PERIOD] from and after the date of its final passage and adoption. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



vo 2003 SNTERiMATSONAL ENERGY COMSERVATSON CODE® 



mBLf 



ITENT^ 



CHAPTER 1 ADMINISTRATION. . . . . . o o o . . , . . . 1 

Section 

101 General 1 

102 Materials, Systems and Equipment 2 

103 Alternate Materials— Method of 
Construction, Design or Insulating 

Systems 3 

104 Construction Documents 4 

105 Inspections 4 

106 Validity 4 

107 Referenced Standards 4 

CHAPTER 2 ©EFIMTIONS. . oo ,,,... .... ...... S 

Section 

201 General 5 

202 General Definitions 5 

CHAPTER 3 DESIGN CONDITIONS. .......... 11 

Section 

301 General 11 

302 Thermal Design Parameters 11 

CHAPTER 4 RESIDENTIAL BUILDING DESIGN 
BY SYSTEMS ANALYSIS AND 
DESIGN OF BUILDINGS 
UTILIZING RENEWABLE 
ENERGY SOURCES ............. 13 

Section 

401 General 13 

402 Systems Analysis 13 

CHAPTER S RESIDENTIAL BUILDING DESIGN 
BY COMPONENT PERFORMANCE 
APPROACH ..................... 17 

Section 

501 General 17 

502 Building Envelope Requirements 17 

503 Building Mechanical Systems and 

Equipment 37 

504 Service Water Heating 42 

505 Electrical Power and Lighting 43 

CHAPTER 6 SIMPLIFIED PRESCRIPTIVE 

REQUIREMENTS FOR DETACHED 
ONE= AND TWO=FAMILY 
DWELLINGS AND GROUP R=2, R=4 
OR TOWNHOUSE RESIDENTIAL 
BUILDINGS. ................. o ,. 45 

Section 

601 General 45 

602 Building Envelope 45 

603 Mechanical Systems 50 

604 Service Water Heating 50 

605 Electrical Power and Lighting 50 



CHAPTER 7 BUILDING DESIGN FOR ALL 



Section 

701 General 



CHAPTER 8 DESIGN BY ACCEPTABLE 



51 
51 



Section 

801 General 53 

802 Building Envelope Requirements 53 

803 Building Mechanical Systems 59 

804 Service Water Heating 72 

805 Electrical Power and Lighting Systems 74 

806 Total Building Performance 75 

CHAPTER 9 CLIMATE MAPS ............... 145 

Section 

901 General 145 

902 Climate Zones 145 

CHAPTER 10 REFERENCED STANDARDS . . . 



INDEX 



2003 BNTERSMMIONAL ENERGY CONSERVATION CODE® 



2003 INTERNATIONAL ENERGY C0NSERVAT80N CODE® 



CHAPTER 1 



101.1 Title. These regulations shall be known as the Energy 
Conservation Code of [NAME OF JURISDICTION], and shall be 
cited as such. It is referred to herein as "this code." 

101.2 Scope. This code estabhshes minimum prescriptive and 
performance-related regulations for the design of energy-effi- 
cient buildings and structures or portions thereof that provide 
facilities or shelter for public assembly, educational, business, 
mercantile, institutional, storage and residential occupancies, 
as well as those portions of factory and industrial occupancies 
designed primarily for human occupancy. This code thereby 
addresses the design of energy-efficient building envelopes and 
the selection and installation of energy-efficient mechanical, 
service water-heating, electrical distribution and illumination 
systems and equipment for the effective use of energy in these 
buildings and structures. 



mt Energy conservation systems and components 
in existing buildings undergoing repair, alteration or addi- 
tions, and change of occupancy, shall be permitted to com- 
ply with the International Existing Building Code. 

101.2.1 Exempt tatMlmgs. Buildings and structures indi- 
cated in Sections 101.2.1.1 and 101.2.1.2 shall be exempt 
from the building envelope provisions of this code, but shall 
comply with the provisions for building, mechanical, ser- 
vice water heating and lighting systems. 

101.2.1.1 Separated bMnMlegs. Buildings and struc- 
tures, or portions thereof separated by building envelope 
assembUes from the remainder of the building, that have 
a peak design rate of energy usage less than 3.4 Btu/h per 
square foot (10.7 W/m^) or 1 .0 watt per square foot (10.7 
W/m^) of floor area for space conditioning purposes. 

101.2.1.2 Uecomditiomedl bunldninigs. Buildings and 
structures or portions thereof which are neither heated 
nor cooled. 



The provisions of this code shall ap- 
ply to all matters affecting or relating to structures and pre- 
mises, as set forth in Section 101 . Where, in a specific case, 
different sections of this code specify different materials, 
methods of construction or other requirements, the most re- 
strictive shall govern. 



[EB] 101.2.2.1 Exnstimg DmstaMatnoms. Except as other- 
wise provided for in this chapter, a provision in this code 
shall not require the removal, alteration or abandonment 
of, nor prevent the continued utilization and maintenance 
of, an existing building envelope, mechanical, service 
water-heating, electrical distribution or illumination sys- 
tem lawfully in existence at the time of the adoption of 
this code. 

[EB] 101.2.2.2 Addltnomis, alterations or repairs. Addi- 
tions, alterations, renovations or repairs to a building en- 



velope, mechanical, service water-heating, electrical dis- 
tribution or illumination system or portion thereof shall 
conform to the provisions of this code as they relate to 
new construction without requiring the unaltered por- 
tion(s) of the existing system to comply with all of the re- 
quirements of this code. Additions, alterations or repairs 
shall not cause any one of the aforementioned and exist- 
ing systems to become unsafe, hazardous or overloaded. 



[EB] 101.2.2.3 Historic binlMiings. The provisions of 
this code relating to the construction, alteration, repair, 
enlargement, restoration, relocation or movement of 
buildings or structures shall not be mandatory for exist- 
ing buildings or structures specifically identified and 
classified as historically significant by the state or local 
jurisdiction, hsted in The National Register of Historic 
Places or which have been determined to be eligible for 
such hsting. 

[EB] 101.2,2.4 Cliange im occmpanicy. It shall be unlaw- 
ful to make a change in the occupancy of any building or 
structure which would result in an increase in demand for 
either fossil fuel or electrical energy supply unless such 
building or structure is made to comply with the require- 
ments of this code or otherwise approved by the authority 
having jurisdiction. The code official shall certify that 
such building or structure meets the intent of the provi- 
sions of law governing building construction for the pro- 
posed new occupancy and that such change of occupancy 
does not result in any increase in demand for either fossil 
fuel or electrical energy supply or any hazard to the pub- 
lic health, safety or welfare. 



When a building houses more 
than one occupancy, each portion of the building shall con- 
form to the requirements for the occupancy housed therein. 
Where minor accessory uses do not occupy more than 10 
percent of the area of any floor of a building, the major use 
shall be considered the building occupancy. Buildings, 
other than detached one- and two-family dwellings and 
townhouses, with a height of four or more stories above 
grade shall be considered commercial buildings for pur- 
poses of this code, regardless of the number of floors that are 
classified as residential occupancy. 

101.3 Imterat, The provisions of this code shall regulate the de- 
sign of building envelopes for adequate thermal resistance and 
low air leakage and the design and selection of mechanical, 
electrical, service water-heating and illumination systems and 
equipment which will enable effective use of energy in new 
building construction. It is intended that these provisions pro- 
vide flexibility to permit the use of innovative approaches and 
techniques to achieve effective utilization of energy. This code 
is not intended to abridge safety, health or environmental re- 
quirements under other applicable codes or ordinances. 



2003 IllMTERSMATlONAL ENERGY CONSERVATDON CODE® 



ADMINISTRATION 



WIA Compliance. Compliance with this code shall be deter- 
mined in accordance with Sections 101.4.1 and 101.4.2. 

101.4.1 Residential buildings. For residential buildings the 
following shall be used as the basis for compliance assess- 
ment: a systems approach for the entire building (Chapter 
4), an approach based on performance of individual compo- 
nents of the building envelope (Chapter 5), an approach 
based on performance of the total building envelope (Chap- 
ter 5), an approach based on acceptable practice for each en- 
velope component (Chapter 5), an approach by prescriptive 
specification for individual components of the building en- 
velope (Chapter 5), or an approach based on simplified, pre- 
scriptive specification (Chapter 6) where the conditions set 
forth in Section 101.4.1.1 or 101.4.1.2 are satisfied. 

101.4.1.1 Detached one- and two-family dwellings. 
When the glazing area does not exceed 15 percent of the 
gross area of exterior walls. 

101.4.1.2 Residential buildings, Group R-l, R-4 or 
towehouses. When the glazing area does not exceed 25 
percent of the gross area of exterior walls. 

101.4.2 Commercial buildings. For commercial buildings, 
a prescriptive or performance-based approach (Chapter 7) 
or as specified by acceptable practice (Chapter 8) shall be 
used as the basis for compliance assessment. 



IVlATERiALS, SYSTEMS AND EQUBPiViENT 

102.1 General, Materials, equipment and systems shall be 
identified in a manner that will allow a determination of their 
compliance with the applicable provisions of this code. 

102.2 Materials, equipment and systems installation. All in- 
sulation materials, caulking and weatherstripping, fenestration 
assemblies, mechanical equipment and systems components, 
and water-heating equipment and system components shall be 
installed in accordance with the manufacturer's installation in- 
structions. 

102.3 Maintenance information. Required regular mainte- 
nance actions shall be clearly stated and incorporated on a 
readily accessible label. Such label shall include the title or 
pubhcation number, the operation and maintenance manual for 
that particular model and type of product. Maintenance instruc- 
tions shall be furnished for equipment that requires preventive 
maintenance for efficient operation. 

102.4 Insulation installation. Roof/ceiling, floor, wall cavity 
and duct distribution systems insulation shall be installed in a 
manner that permits inspection of the manufacturer's /?- value 
identification mark. 

102.4.1 Protection off exposed foundation insulation. In- 
sulation applied to the exterior of foundation walls and 
around the perimeter of slab-on-grade floors shall have a 
rigid, opaque and weather-resistant protective covering to 
prevent the degradation of the insulation's thermal perfor- 
mance. The protective covering shall cover the exposed area 
of the exterior insulation and extend a minimum of 6 inches 
(153 mm) below grade. 



102.5 Identification. Materials, equipment and systems shall 
be identified in accordance with Sections 102.5.1, 102.5.2 and 
102.5.3. 

102.5,1 Building envelope insulation. A thermal resis- 
tance (R) identification mark shall be apphed by the manu- 
facturer to each piece of building envelope insulation 12 
inches (305 mm) or greater in width. 

Alternatively, the insulation installer shall provide a 
signed and dated certification for the insulation installed in 
each element of the building envelope, listing the type of in- 
sulation installations in roof/ceihngs, the manufacturer and 
the R-vahie. For blown-in or sprayed insulation, the installer 
shall also provide the initial installed thickness, the settled 
thickness, the coverage area and the number of bags in- 
stalled. Where blown-in or sprayed insulation is installed in 
walls, floors and cathedral ceilings, the installer shall pro- 
vide a certification of the installed density and /?-value. The 
installer shall post the certification in a conspicuous place 
on the job site. 



L The thickness of 
roof/ceiling insulation that is either blown in or sprayed 
shall be identified by thickness markers that are labeled 
in inches or millimeters installed at least one for every 
300 square feet (28 m^) throughout the attic space. The 
markers shall be affixed to the trusses or joists and 
marked with the minimum initial installed thickness and 
minimum settled thickness with numbers a minimum of 
1 inch (25 mm) in height. Each marker shall face the attic 
access. The thickness of installed insulation shall meet or 
exceed the minimum initial installed thickness shown by 
the marker. 



[/-factors of fenestration products (windows, doors 
and skylights) shall be determined in accordance with 
NFRC 100 by an accredited, independent laboratory, and la- 
beled and certified by the manufacturer. The solar heat gain 
coefficient (SHGC) of glazed fenestration products (win- 
dows, glazed doors and skylights) shall be determined in ac- 
cordance with NFRC 200 by an accredited, independent 
laboratory, and labeled and certified by the manufacturer. 
Where a shading coefficient for a fenestration product is 
used, it shall be determined by converting the product's 
SHGC, as determined in accordance with NFRC 200, to a 
shading coefficient, by dividing the SHGC by 0.87. Such 
certified and labeled [/-factors and SHGCs shall be ac- 
cepted for purposes of determining compliance with the 
building envelope requirements of this code. 

When a manufacturer has not determined product [/-fac- 
tor in accordance with NFRC 100 for a paiticular product 
line, compliance with the building envelope requirements of 
this code shall be determined by assigning such products a 
default [/-factor in accordance with Tables 102.5.2(1) and 
102.5.2(2). When a SHGC or shading coefficient is used for 
code compliance and a manufacturer has not determined 
product SHGC in accordance with NFRC 200 for a particu- 
lar product line, compliance with the building envelope re- 
quirements of this code shall be determined by assigning 
such products a default SHGC in accordance with Table 



2003 JNTERNATIONAL ENERGY CONSERVATION CODE'' 



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ADMDNISTRATDOW 



102.5.2(3). Product features must be verifiable for the prod- 
uct to qualify for the default value associated with those fea- 
tures. Where the existence of a particular feature cannot be 
determined with reasonable certainty, the product shall not 
receive credit for that feature. Where a composite of materi- 
als from two different product types is used, the product 
shall be assigned the higher [/-factor. 



TABLE 102.5.2(11) 



TABLE 102.5.2(2) 
W-FACTOe DEFAULT TABLE FOR WOMGLAZED DOORS 





SINGLE 


DOUBLE 


FRAME MATERIAL AND PRODUCT TYPE^ 


GLAZED 


GLAZED 


Metal without thermal break: 






Curtain wall 


1.22 


0.79 


Fixed 


1.13 


0.69 


Garden window 


2.60 


1.81 


Operable (including sliding and 






swinging glass doors) 


1.27 


0.87 


Site-assembled sloped/overhead glazing 


1.36 


0.82 


Skylight 


1.98 


1.31 


Metal with thermal break: 






Curtain wall 


1.11 


0.68 


Fixed 


1.07 


0.63 


Operable (including sliding and 






swinging glass doors) 


1.08 


0.65 


Site-assembled sloped/overhead glazing 


1.25 


0.70 


Skylight 


1.89 


1.11 


Reinforced vinyl/metal clad wood: 






Fixed 


0.98 


0.56 


Operable (including sliding and 






swinging glass doors) 


0.90 


0.57 


Skylight 


1.75 


1.05 


Wood/vinyl/fiberglass: 






Fixed 


0.98 


0.56 


Garden window 


2.31 


1.61 


Operable (including sliding and 






swinging glass doors) 


0.89 


0.55 


Skylight 


1.47 


0.84 



DOOR TYPE 


WITH FOAM 
CORE 


WITHOUT 
FOAM 
CORE 


Steel doors (1.75 inches thick) 


0.35 


0.60 




WITH 
STORM 
DOOR 


WITHOUT 
STORM 
DOOR 


Wood doors (1.75 inches thick) 
Hollow core flush 
Panel with 0.438-inch panels 
Panel with 1.125-inch panels 
Solid core flush 


0.32 
0.36 
0.28 
0.26 


0.46 
0.54 
0.39 
0.40 



For SI: 1 inch = 25.4 mm. 



1(0)2.53 Dmict dnsttrnbimtioini systems iimsiiiilaiticie. A thermal 
resistance (R) identification mark shall be applied by the 
manufacturer in maximum intervals of no greater than 10 
feet (3048 mm) to insulated flexible duct products showing 
the thermal performance /?- value for the duct insulation it- 
self (excluding air films, vapor retarders or other duct com- 
ponents). 



ECTDOW 103 



OF C0MS1 



ITUQD 



m 



a. Glass-block assemblies with mortar but without reinforcing or framing shall 
have a [/-factor of 0.60. 



The provisions of this code are not intended to 
prevent the use of any material, method of construction, design 
or insulating system not specifically prescribed herein, pro- 
vided that such construction, design or insulating system has 
been approved by the code official as meeting the intent of the 
code. 

Compliance with specific provisions of this code shall be de- 
termined through the use of computer software, worksheets, 
compliance manuals and other similar materials when they 
have been approved by the code official as meeting the intent of 
this code. 



TABLE 102.5.2(3) 
SHGC DEFAULT TABLE FOR FEMESTRATIOW 












SINGLE GLAZED 


DOUBLE GLAZED 










Clear 


Bronze 


Green 


Gray 












+ 


+ 


+ 


+ 


PRODUCT DESCRIPTlOiS! 


Clear 


Bronze 


Green 


Gray 


Clear 


Clear 


Clear 


Clear 


Metal frames 


















Fixed 


0.78 


0.67 


0.65 


0.64 


0.68 


0.57 


0.55 


0.54 


Operable 


0.75 


0.64 


0.62 


0.61 


0.66 


0.55 


0.53 


0.52 


Nonmetal frames 


















Fixed 


0.75 


0.64 


0.62 


0.61 


0.66 


0.54- 


0.53 


0.52 


Operable 


0.63 


0.54 


0.53 


0.52 


0.55 


0.46 


0.45 


0.44 



2003 BMTERNATIOiMAL ENERGY CONSEIRVATDON CODI 



ADMINISTRATION 



SECTION 104 
CONSTRUCTION DOCUMENTS 

104.1 General. Construction documents and other supporting 
data shall be submitted in one or more sets with each applica- 
tion for a permit. The construction documents and designs sub- 
mitted under the provisions of Chapter 4 shall be prepared by a 
registered design professional where required by the statutes of 
the jurisdiction in which the project is to be constructed. Where 
special conditions exist, the code official is authorized to re- 
quire additional construction documents to be prepared by a 
registered design professional. 

Exceptions: 

1 . The code official is authorized to waive the submis- 
sion of construction documents and other supporting 
data not required to be prepared by a registered design 
professional if it is found that the nature of the work 
applied for is such that reviewing of construction doc- 
uments is not necessary to obtain compliance with 
this code. 

2. For residential buildings having a conditioned floor 
area of 5,000 square feet (465 m^) or less, designs sub- 
mitted under the provisions of Chapter 4 shall be pre- 
pared by anyone having qualifications acceptable to 
the code official. 

104.2 Information on construction documents. Construc- 
tion documents shall be drawn to scale upon suitable material. 
Electronic media documents are permitted to be submitted 
when approved by the code official. Construction documents 
shall be of sufficient clarity to indicate the location, nature and 
extent of the work proposed and show in sufficient detail perti- 
nent data and features of the building and the equipment and 
systems as herein governed, including, but not limited to, de- 
sign criteria, exterior envelope component materials, [/-factors 
of the envelope systems, tZ-factors of fenestration products, 
/?- values of insulating materials, size and type of apparatus and 
equipment, equipment and systems controls and other perti- 
nent data to indicate compliance with the requirements of this 
code and relevant laws, ordinances, rules and regulations, as 
determined by the code official. 



SECTION 106 
VALIDITY 

106.1 General. If a section, subsection, sentence, clause or 
phrase of this code is, for any reason, held to be unconstitu- 
tional, such decision shall not affect the validity of the remain- 
ing portions of this code. 



SECTION 107 
REFERENCED STANDARDS 

107.1 General. The standards, and portions thereof, which are 
referred to in this code and listed in Chapter 10, shall be consid- 
ered part of the requirements of this code to the extent of such 
reference. 

107.2 Conflicting requirements. When a section of this code 
and a section of a referenced standard from Chapter 10 specify 
different materials, methods of construction or other require- 
ments, the provisions of this code shall apply. 



SECTION 105 
INSPECTIONS 

105.1 General. Construction or work for which a permit is re- 
quired shall be subject to inspection by the code official. 

105.2 Approvals required. No work shall be done on any part 
of the building or structure beyond the point indicated in each 
successive inspection without first obtaining the written ap- 
proval of the code official. No construction shall be concealed 
without inspection approval. 

105.3 Final inspection. There shall be a final inspection and 
approval for buildings when completed and ready for occu- 
pancy. 

105.4 Reinspection. A structure shall be reinspected when de- 
termined necessary by the code official. 



2003 DNTERNATIONAL ENERGY CONSERVATION CODE® 



201.1 Scope. Unless otherwise expressly stated, the following 
words and terms shall, for the purposes of this code, have the 
meanings indicated in this chapter. 

201.2 ImtercIiaiigeaWllty, Words used in the present tense in- 
clude the future; words in the masculine gender include the 
feminine and neuter; the singular number includes the plural 
and the plural, the singular. 

2® 1.3 Terms defieed in otlier codes. Where terms are not de- 
fined in this code and are defined in the International Building 
Code, ICC Electrical Code, International Fire Code, Interna- 
tional Fuel Gas Code, International Mechanical Code or the 
International Plumbing Code, such terms shall have meanings 
ascribed to them as in those codes. 

201.4 Terms mot defined. Where terms are not defined throu'gh 
the methods authorized by this section, such terms shall have 
ordinarily accepted meanings such as the context implies. 



GENERAL DEFINITIONS 

ACCESSIBLE (AS APPLIED TO EQUIPMENT). Ad- 
mitting close approach because not guarded by locked doors, 
elevation or other effective means (see "Readily accessible"). 

ADDITION. An extension or increase in the height, condi- 
tioned floor area or conditioned volume of a building or struc- 
ture. 

AIR TRANSPORT FACTOR. The ratio of the rate of useful 
sensible heat removal from the conditioned space to the energy 
input to the supply and return fan motor(s), expressed in consis- 
tent units and under the designated operating conditions. 

ALTERATION. Any construction, renovation or change in a 
mechanical system that involves an extension, addition or 
change to the arrangement, type or purpose of the original in- 
stallation. 

ANNUAL FUEL UTILIZATION EFFICIENCY (AFUE). 
The ratio of annual output energy to annual input energy which 
includes any nonheating season pilot input loss, and for gas or 
oil-fired furnaces or boilers, does not include electrical energy. 

APPROVED. Approved by the code official or other authority 
having jurisdiction as the result of investigation and tests con- 
ducted by said official or authority, or by reason of accepted 
principles or tests by nationally recognized organizations. 

AUTOMATIC. Self-acting, operating by its own mechanism 
when actuated by some impersonal influence, as, for example, 
a change in current strength, pressure, temperature or mechani- 
cal configuration (see "Manual"). 



low-grade area greater than or equal to 50 percent of its total 
wall area, including openings (see "Gross area of exterior 
walls"). 

BTU. Abbreviation for British thermal unit, which is the quan- 
tity of heat required to raise the temperature of 1 pound (0.454 
kg) of water 1°F (d0.56°C), (1 Btu = 1,055 J). 

BUILDING. Any structure occupied or intended for support- 
ing or sheltering any use or occupancy. 

BUILDING ENVELOPE. The elements of a building which 
enclose conditioned spaces through which thermal energy is 
capable of being transferred to or from the exterior or to or from 
spaces exempted by the provisions of Section 101.2.1. 

CODE OFFICIAL. The officer or other designated authority 
charged with the administration and enforcement of this code, 
or a duly authorized representative. 

COEFFICIENT OF PERFORMANCE (COP)— 
COOLING. The ratio of the rate of heat removal to the rate of 
energy input in consistent units, for a complete cooling system 
or factory-assembled equipment, as tested under a nationally 
recognized standard or designated operating conditions. 

COEFFICIENT OF PERFORMANCE (COP)— HEAT 
PUMP— HEATING. The ratio of the rate of heat delivered to 
the rate of energy input, in consistent units, for a complete heat 
pump system under designated operating conditions. Supple- 
mental heat shall not be considered when checking compliance 
with the heat pump equipment (COPs Hsted in the tables in Sec- 
tions 503 and 803). 

COMFORT ENVELOPE. The areas defined on a psychro- 
metric chart and enclosing the range of operative temperatures 
and humidities for both the winter and summer comfort zones 
as depicted in Figure 2 of ASHRAE 55. 

COMMERCIAL BUILDING. All buildings other than de- 
tached one- and two-family dweUings, townhouses and resi- 
dential buildings. Groups R-2 and R-4. 

CONDENSER. A heat exchanger designed to liquefy refriger- 
ant vapor by removal of heat. 



JT WALL. The opaque portion of a wall which en- 
closes one side of a basement and having an average be- 



A specific refrigerating machine 
combination for a given refrigerant, consisting of one or more 
power-driven compressors, condensers, liquid receivers (when 
required), and the regularly furnished accessories. 

CONDITIONED FLOOR AREA. The horizontal projection 
of that portion of interior space which is contained within exte- 
rior walls and which is conditioned directly or indirectly by an 
energy-using system. 

CONDITIONED SPACE. A heated or cooled space, or both, 
within a building and, where required, provided with 
humidification or dehumidification means so as to be capable 
of maintaining a space condition falling within the comfort en- 
velope set forth in ASHRAE 55. 



2003 SMTERNATIOMAL ENERGY CONSERVATBOiSJ CODE® 



DEFINBTlOhSS 



COOLED SPACE. Space within a building which is provided 
with a positive cooling supply (see "Positive cooling supply"). 

CRAWL SPACE WALL. The opaque portion of a wall which 
encloses a crawl space and is partially or totally below grade. 

The temperature range in which no heating or 



this ratio becomes equal to COP (see also "Coefficient of per- 
formance"). 



cooling is used. 

DEGREE DAY, COOLING. A unit, based on temperature 
difference and time, used in estimating cooling energy con- 
sumption and specifying nominal cooling load of a building in 
summer. For any one day, when the mean temperature is more 
than 65°F (1 8°C), there are as many degree days as there are de- 
grees Fahrenheit (Celsius) difference in temperature between 
the mean temperature for the day and 65 °F (18°C). Annual 
cooling degree days (CDD) are the sum of the degree days over 
a calendar year. 

DEGREE DAY, HEATING. A unit, based on temperature dif- 
ference and time, used in estimating heating energy consump- 
tion and specifying nominal heating load of a building in 
winter. For any one day, when the mean temperature is less than 
65°F ( 1 8°C), there are as many degree days as there are degrees 
Fahrenheit (Celsius) difference in temperature between the 
mean temperature for the day and 65°F (18°C). Annual heating 
degree days (HDD) are the sum of the degree days over a calen- 
dar year. 



^T. A tube or conduit utilized for conveying air. The air 
passages of self-contained systems are not to be construed as 
air ducts. 



I. A continuous passageway for the transmis- 
sion of air that, in addition to ducts, includes duct fittings, 
dampers, plenums, fans and accessory air-handling equipment 
and appliances. 

DWELLING UNIT. A single housekeeping unit comprised of 
one or more rooms providing complete independent living fa- 
cilities for one or more persons, including permanent provi- 
sions for hving, sleeping, eating, cooking and sanitation. 



ER. A ducting arrangement and automatic con- 
trol system that allows a cooling supply fan system to supply 
outdoor air to reduce or eliminate the need for mechanical re- 
frigeration during mild or cold weather. 

ENERGY, The capacity for doing work (taking a number of 
forms) which is capable of being transformed from one into an- 
other, such as thermal (heat), mechanical (work), electrical and 
chemical in customary units, measured in joules (J), kilo- 
watt-hours (kWh) or British thermal units (Btu). 

ENERGY ANALYSIS. A method for determining the annual 
(8,760 hours) energy use of the proposed design and standard 
design based on hour-by-hour estimates of energy use. 



LGY COST. The total estimated annual cost for pur- 
chased energy for the building, including any demand charges, 
fuel adjustment factors and delivery charges applicable to the 
building. 

ENERGY EFFICIENCY RATIO (EER), The ratio of net 
equipment cooling capacity in British thermal units per hour 
(Btu/h) (W) to total rate of electric input in watts under desig- 
nated operating conditions. When consistent units are used. 



L That part of the system in which liquid re- 
frigerant is vaporized to produce refrigeration. 

EXTERIOR ENVELOPE. See "Building envelope." 

EXTERIOR WALL. An above-grade wall enclosing condi- 
tioned space which is vertical or sloped at an angle 60 degrees 
(1.1 rad) or greater from the horizontal (see "Roof assembly"). 
Includes between-floor spandrels, peripheral edges of floors, 
roof and basement knee walls, dormer walls, gable end walls, 
walls enclosing a mansard roof, and basement walls with an av- 
erage below-grade wall area which is less than 50 percent of the 
total opaque and nonopaque area of that enclosing side. 

FENESTRATION. Skylights, roof windows, vertical win- 
dows (whether fixed or moveable), opaque doors, glazed doors, 
glass block, and combination opaque/glazed doors. 

FURNACE, DUCT. A furnace normally installed in distribu- 
tion ducts of air-conditioning systems to supply warm air for 
heating and which depends on a blower not furnished as part of 
the duct furnace for air circulation. 

FURNACE, WARM AIR. A self-contained, indirect-fired or 
electrically heated furnace that supplies heated air through 
ducts to spaces that require it. 

GLAZING AREA. Total area of the glazed fenestration mea- 
sured using the rough opening and including sash, curbing or 
other framing elements that enclose conditioned space. 
Glazing area includes the area of glazed fenestration assem- 
blies in walls bounding conditioned basements. For doors 
where the daylight opening area is less than 50 percent of the 
door area, the glazing area is the daylight opening area. For all 
other doors, the glazing area is the rough opening area for the 
door including the door and the frame. 

GROSS AREA OF EXTERIOR WALLS. The normal pro- 
jection of all exterior walls, including the area of all windows 
and doors installed therein (see "Exterior wall"). 



DSS FLOOR AREA. The sum of the areas of several 
floors of the building, including basements, cellars, mezzanine 
and intermediate floored tiers and penthouses of headroom 
height, measured from the exterior faces of exterior walls or 
from the centerline of walls separating buildings, but exclud- 
ing: 

1 . Covered walkways, open roofed-over areas, porches and 
similar spaces. 

2. Pipe trenches, exterior terraces or steps, chimneys, roof 
overhangs and similar features. 



ff. The form of energy that is transferred by virtue of a 
temperature difference or a change in state of a material. 

HEAT CAPACITY (HC). The amount of heat necessary to 
raise the temperature of a given mass by one degree. The heat 
capacity of a building element is the sum of the heat capacities 
of each of its components. 

HEAT PUMP. A refrigeration system that extracts heat from 
one substance and transfers it to another portion of the same 
substance or to a second substance at a higher temperature for a 
beneficial purpose. 



6 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



MEAT REJECTION EQUIPMENT, Equipment used in 
comfort cooling systems such as air-cooled condensers, open 
cooling towers, closed-circuit cooling towers and evaporative 
condensers. 

HEAT TRAP. An arrangement of piping and fittings, such as 
elbows, or a commercially available heat trap, that prevents 
thermosyphoning of hot water during standby periods. 

HEATED SLABo Slab-on-grade construction in which the 
heating elements or hot air distribution system is in contact 
with or placed within the slab or the subgrade. 

HEATED SPACE. Space within a building which is provided 
with a positive heat supply (see "Positive heat supply"). Fin- 
ished living space within a basement with registers or heating 
devices designed to supply heat to a basement space shall auto- 
matically define that space as heated space. 

HEATING SEASONAL PERFORMANCE FACTOR 
(HSPF). The total heating output of a heat pump during its nor- 
mal annual usage period for heating, in Btu, divided by the total 
electric energy input during the same period, in watt hours, as 
determined by DOE 10 CFR Part 430, Subpart B, Test Proce- 
dures and based on Region 4. 



ISTATo A regulatory device, actuated by changes in 
humidity, used for automatic control of relative humidity. 

HVAC, Heating, ventilating and air conditioning. 

HVAC SYSTEMo The equipment, distribution network, and 
terminals that provide either collectively or individually the 
processes of heating, ventilating, or air conditioning to a build- 
ing. 

HVAC SYSTEM COMPONENTS, HVAC system compo- 
nents provide, in one or more factory-assembled packages, 
means for chilling or heating water, or both, with controlled 
temperature for delivery to terminal units serving the condi- 
tioned spaces of the building. Types of HVAC system compo- 
nents include, but are not limited to, water chiller packages, 
reciprocating condensing units and water source (hydronic) 
heat pumps (see "HVAC system equipment"). 

HVAC SYSTEM EQUIPMENT, HVAC system equipment 
provides, in one (single package) or more (split system) fac- 
tory-assembled packages, means for air circulation, air clean- 
ing, air cooling with controlled temperature and 
dehumidification and, optionally, either alone or in combina- 
tion with a heating plant, the functions of heating and humidi- 
fying. The cooling function is either electrically or heat 
operated and the refrigerant condenser is air, water or 
evaporatively cooled. Where the equipment is provided in more 
than one package, the separate packages shall be designed by 
the manufacturer to be used together. The equipment shall be 
permitted to provide the heating function as a heat pump or by 
the use of electric or fossil-fuel-fired elements. (The word 
"equipment" used without a modifying adjective, in accor- 
dance with common industry usage, appHes either to HVAC 
system equipment or HVAC system components.) 

INFILTRATION, The uncontrolled inward air leakage 
through cracks and interstices in any building element and 
around windows and doors of a building caused by the pressure 
effects of wind or the effect of differences in the indoor and out- 
door air density or both. 



INSULATING SHEATHING, An insulating board having a 
minimum thermal resistance of R-2 of the core material. 

INTEGRATED PART=LOAD VALUE (IPLV), A single 
measure of merit, based on part-load EER or COP expressing 
part-load efficiency for air-conditioning and heat pump equip- 
ment on the basis of weighted operation at various load capaci- 
ties for the equipment. 

LABELED, Devices, equipment, appliances, assemblies or 
materials to which have been affixed a label, seal, symbol or 
other identifying mark of a nationally recognized testing labo- 
ratory, inspection agency or other organization concerned with 
product evaluation that maintains periodic inspection of the 
production of the above-labeled items and by whose label the 
manufacturer attests to compliance with applicable nationally 
recognized standards. 

LISTED, Equipment, appliances, assemblies or materials in- 
cluded in a list published by a nationally recognized testing lab- 
oratory, inspection agency or other organization concerned 
with product evaluation that maintains periodic inspection of 
production of listed equipment, appliances, assembhes or ma- 
terial, and whose listing states either that the equipment, appli- 
ances, assemblies, or material meets nationally recognized 
standards or has been tested and found suitable for use in a 
specified manner. 

LOW- VOLTAGE LIGHTING, Lighting equipment that is 
powered through a transformer such as cable conductor, rail 
conductor and track hghting. 

LUMINAIRE. A complete hghting unit consisting of at least 
one lamp and the parts designed to distribute the light, to posi- 
tion and protect the lamp, to connect the lamp to the power sup- 
ply and ballasting, when applicable. Luminaires are commonly 
referred to as "lighting fixtures." 

MANUAL, Capable of being operated by personal interven- 
tion (see "Automatic"). 

MULTIFAMILY DWELLING, A building containing three 
or more dwelling units. 

MULTIPLE SINGLE=FAMILY DWELLING (TOWN- 
HOUSE), A building not more than three stories in height con- 
sisting of multiple single-family dwelling units, constructed in 
a group of three or more attached units in which each unit ex- 
tends from foundation to roof and with open space on at least 
two sides. 

OCCUPANCY, The purpose for which a building, or portion 
thereof, is utilized or occupied. 

OPAQUE AREAS, All exposed areas of a building envelope 
which enclose conditioned space, except openings for win- 
dows, skylights, doors and building service systems. 

OUTDOOR AIR, Air taken from the outdoors and, therefore, 
not previously circulated through the system. 

OZONE DEPLETION FACTOR, A relative measure of the 
potency of chemicals in depleting stratospheric ozone. The 
ozone depletion factor potential depends on the chlorine and 
bromine content and the atmospheric lifetime of the chemical. 
The depletion factor potential is normalized such that the factor 
for CFC-1 1 is set equal to unity and the factors for the other 
chemicals indicate their potential relative to CFC-11. 



2003 DMTERNATIOiMAL ENERGY CONSERVATION CODE^ 



DEFINITIONS 



PACKAGED TERMINAL AIR CONDITIONER (PTAC). 
A factory-selected wall sleeve and separate unencased combi- 
nation of heating and cooling components, assemblies or sec- 
tions (intended for mounting through the wall to serve a single 
room or zone). It includes heating capability by hot water, 
steam or electricity. (For the complete technical definition, see 
ARI 310/380.) 

PACKAGED TERMINAL HEAT PUMP. A PTAC capable 
of using the refrigeration system in a reverse cycle or heat 
pump mode to provide heat. (For the complete technical defini- 
tion, see ARI 310/380.) 

POSITIVE COOLING SUPPLY. Mechanical coohng dehb- 
erately supplied to a space, such as through a supply register. 
Also, mechanical cooling indirectly supplied to a space 
through uninsulated surfaces of space-cooling components, 
such as evaporator coil cases and cooling distribution systems 
which continually maintain air temperatures within the space 
of 85 °F (29°C) or lower during normal operation. To be consid- 
ered exempt from inclusion in this definition, such surfaces 
shall comply with the insulation requirements of this code. 

POSITIVE HEAT SUPPLY. Heat deliberately supplied to a 
space by design, such as a supply register, radiator or heating 
element. Also, heat indirectly supplied to a space through unin- 
sulated surfaces of service water heaters and space-heating 
components, such as furnaces, boilers and heating and cooling 
distribution systems which continually maintain air tempera- 
ture within the space of 50°F (10°C) or higher during normal 
operation. To be considered exempt from inclusion in this defi- 
nition, such surfaces shall comply with the insulation require- 
ments of this code. 

PROPOSED DESIGN. A description of the proposed build- 
ing design used to estimate annual energy costs for determining 
compliance based on total building performance. 

READILY ACCESSIBLE. Capable of being reached quickly 
for operation, renewal or inspections, without requiring those 
to whom ready access is requisite to climb over or remove ob- 
stacles or to resort to portable ladders or access equipment (see 
"Accessible"). 

REFRIGERANT. A substance utilized to produce refrigera- 
tion by its expansion or vaporization or absorption. 

RENEWABLE ENERGY SOURCES. Sources of energy 
(excluding minerals) derived from incoming solar radiation, 
including natural dayhghting and photosynthetic processes; 
from phenomena resulting therefrom, including wind, waves 
and tides, lake or pond thermal differences; and from the inter- 
nal heat of the earth, including nocturnal thermal exchanges. 

REPAIR. The reconstruction or renewal of any part of an exist- 
ing building for the purpose of its maintenance. 

RESIDENTIAL BUILDING, GROUP R-2. Residential oc- 
cupancies containing more than two dwelling units where the 
occupants are primarily permanent in nature such as apartment 
houses, boarding houses (not transient), convents, monasteries, 
rectories, fraternities and sororities, dormitories and rooming 
houses. For the purpose of this code, reference to Group R-2 
occupancies shall refer to buildings that are three stories or less 
in height above grade. 



RESIDENTIAL BUILDING, GROUP R-4. Residential oc- 
cupancies shall include buildings arranged for occupancies as 
Residential Care/Assisted Living Facilities including more 
than five but not more than 16 occupants, excluding staff. For 
the purpose of this code, reference to Group R-4 occupancies 
shall refer to buildings which are three stories or less in height 
above grade. 

ROOF ASSEMBLY. A roof assembly shall be considered as 
all roof/ceiling components of the building envelope through 
which heat flows, thus creating a building transmission heat 
loss or gain, where such assembly is exposed to outdoor air and 
encloses conditioned space. 

The gross area of a roof assembly consists of the total interior 
surface of all roof/ceihng components, including opaque sur- 
faces, dormer and bay window roofs, trey ceilings, overhead 
portions of an interior stairway to an unconditioned attic, doors 
and hatches, glazing and skylights exposed to conditioned 
space, that are horizontal or sloped at an angle less than 60 de- 
grees (1.1 rad) from the horizontal (see "Exterior wall"). A roof 
assembly, or portions thereof, having a slope of 60 degrees (1.1 
rad) or greater from horizontal shall be considered in the gross 
area of exterior walls and thereby excluded from consideration 
in the roof assembly. Skylight shaft walls 12 inches (305 mm) 
in depth or greater (as measured from the ceiling plane to the 
roof deck) shall be considered in the gross area of exterior walls 
and are thereby excluded from consideration in the roof assem- 
bly. 

ROOM AIR CONDITIONER. An encased assembly de- 
signed as a unit for mounting in a window or through a wall, or 
as a console. It is designed primarily to provide free delivery of 
conditioned air to an enclosed space, room or zone. It includes a 
prime source of refrigeration for cooling and dehumidification 
and means for circulating and cleaning air, and shall be permit- 
ted to also include means for ventilating and heating. 

SASH CRACK. The sum of all perimeters of all window 
sashes, based on overall dimensions of such parts, expressed in 
feet. If a portion of one sash perimeter overlaps a portion of an- 
other sash perimeter, the overlapping portions are only counted 
once. 

SCREW LAMP HOLDERS. A lamp base that requires a 
screw-in-type lamp such as an incandescent or tungsten-halo- 
gen bulb. 

SEASONAL ENERGY EFFICIENCY RATIO (SEER), 
The total cooling output of an air conditioner during its normal 
annual usage period for cooling, in Btu/h (W), divided by the 
total electric energy input during the same period, in 
watt-hours, as determined by DOE 10 CFR Part 430, Subpart 
B, Test Procedures. 

SERVICE SYSTEMS, All energy-using systems in a building 
that are operated to provide services for the occupants or pro- 
cesses housed therein, including HVAC, service water heating, 
illumination, transportation, cooking or food preparation, laun- 
dering and similar functions. 

SERVICE WATER HEATING. Supply of hot water for pur- 
poses other than comfort heating. 



2003 BWTERNATIONAL ENERGY CONSERVATION CODE® 



J. An approved software program or 
calculation-based methodology that projects the hour-by-hour 
loads and annual energy use of a building. 

SKYLIGHTo Glazing that is horizontal or sloped at an angle 
less than 60 degrees (1.1 rad) from the horizontal (see "Glazing 
area"). 

SLAB=ON=GEADE FLOOR INSULATION. Insulation 
around the perimeter of the floor slab or its supporting founda- 
tion when the top edge of the floor perimeter slab is above the 
finished grade or 12 inches (305 mm) or less below the finished 
grade. 



1. Source of natural daylighting 
and of thermal, chemical or electrical energy derived directly 
from conversion of incident solar radiation. 

STANDARD DESIGN. A version of the proposed design that 
meets the minimum requirements of this code and is used to de- 
termine the maximum annual energy cost requirement for com- 
pliance based on total building performance. 

STANDARD TRUSS, Any construction that does not permit 
the roof/ceiling insulation to achieve the required /?-value over 
the exterior walls. 



TION, A one-story structure added to an 
i existing dweihng with a glazing area in excess of 40 percent of 
i the gross area of the structure's exterior walls and roof. 

SYSTEM, A combination of central or terminal equipment or 
components or controls, accessories, interconnecting means, 
and terminal devices by which energy is transformed so as to 
perform a specific function, such as HVAC, service water heat- 
ing or illumination. 

THERMAL CONDUCTANCE. Time rate of heat flow 
through a body (frequently per unit area) from one of its bound- 
ing surfaces to the other for a unit temperature difference be- 
tween the two surfaces, under steady conditions 
(Btu/h • ft^ • °F) [W/(m2 • K)]. 



THERMAL ISOLATION, A separation of conditioned 
spaces, between a sunroom addition and a dwelling unit, con- 
sisting of existing or new wall(s), doors and/or windows. New 
wall(s), doors and/or windows shall meet the prescriptive enve- 
lope component criteria in Table 502.2.5. 

THERMAL RESISTANCE (R). The reciprocal of thermal 
conductance (h • ft^ • °F/Btu) [(m^ • K)AV]. 

THERMAL RESISTANCE, OVERALL(^„). The recipro- 
cal of overall thermal conductance 
(h • ft2 • °F/Btu)[(m2 • K)AV]. The overall thermal resistance of 
the gross area or individual component of the exterior building 
envelope (such as roof/ceihng, exterior wall, floor, crawl space 
wall, foundation, window, skyUght, door, opaque wall, etc.), 
which includes the area weighted /?- values of the specific com- 
ponent assembUes (such as air film, insulation, dry wall, fram- 
ing, glazing, etc.). 

THERMAL TRANSMITTANCE (£/). The coefficient of 
heat transmission (air to air). It is the time rate of heat flow per 
unit area and unit temperature difference between the 
warm-side and coid-side air films (Btu/h • ft^ • °F) 
[W/(m2 • K)].The tZ-factor applies to combinations of different 
materials used in series along the heat flow path, single materi- 



als that comprise a building section, cavity airspaces and 
surface air films on both sides of a building element. 

THERMAL TRANSMITTANCE, OVERALL (UJ. The 
overall (average) heat transmission of a gross area of the exte- 
rior building envelope (Btu/h • ft^ • °F) [W/(m2 • K)]. The 
f/^-factor applies to the combined effect of the time rate of heat 
flow through the various parallel paths, such as windows, doors 
and opaque construction areas, comprising the gross area of 
one or more exterior building components, such as walls, floors 
or roof/ceilings. 

THERMOSTAT, An automatic control device actuated by 
temperature and designed to be responsive to temperature. 

TOWNHOUSE. See "Mulfiple single-family dwelling." i 

UNITARY COOLING AND HEATING EQUIPMENT, 
One or more factory-made assemblies which include an evapo- 
rator or cooling coil, a compressor and condenser combination, 
and which shall be permitted to include a heating function as 
well. When heating and cooling equipment is provided in more 
than one assembly, the separate assemblies shall be designed to 
be used together. 

UNITARY HEAT PUMP. One or more factory-made assem- 
blies which include an indoor conditioning coil, compressor(s) 
and outdoor coil or refrigerant-to-water heat exchanger, in- 
cluding means to provide both heating and cooling functions. 
When heat pump equipment is provided in more than one as- 
sembly, the separate assemblies shall be designed to be used to- 
gether. 

VENTILATION. The process of supplying or removing air by 
natural or mechanical means to or from any space. Such air 
shall be permitted to be conditioned or unconditioned. 

VENTILATION AM. That portion of supply air which comes 
from outside (outdoors) plus any recirculated air that has been 
treated to maintain the desired quality of air within a designated 
space. C3 

WATER HEATER, INSTANTANEOUS, A water heater 
with an input rating of at least 4,000 Btu/h per gallon (3 10 W/L) 
stored water and a storage capacity of less than 10 gallons (38 

L). 



. A water heater with an input 
rating less than 4,000 Btu/h per gallon (310 W/L) of stored wa- 
ter or storage capacity of at least 10 gallons (38 L). 

WINDOW PROJECTION FACTOR, A measure of the por- 
tion of glazing that is shaded by an eave or overhang. 

ZONE, A space or group of spaces within a building with heat- 
ing or cooling requirements, or both, sufficiently similar so that 
comfort conditions can be maintained throughout by a single 
controlling device. 



2003 BNTERiMATBONAL ENERGY CONSERVATIIOW COD! 



1 2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



©Hl^PTER 



loumii 



GENERAL 

3(0)1.1 Desnge criteria. The criteria of this chapter estabUsh the 
design conditions for use with Chapters 4, 5, 6 and 8. 



TCiERIiAL DESDGN FARAiiETERS 

3(02.1 Exterior desigm comditnoms. The following design pa- 
rameters in Table 302. 1 shall be used for calculations required 
under this code. 



TABLE 302.1 
EXTERIOR DESlGiM COiMDiTllOINIS 



CONDITION 


VALUE 


Winter^, Design Dry-bulb (°F) 




Summer", Design Dry-bulb (°F) 




Summe^^ Design Wet-bulb (°F) 




Degree days heating'' 




Degree days cooling'' 




Climate zone'' 





For SI: °C = [(°F)-32]/1.8. 

a. The outdoor design temperature shall be selected from the columns of 97V2 
percent values for winter and 2'/2 percent values for summer from tables in 
the ASHRAE Fundamentals Handbook. Adjustments shall be permitted to 
reflect local climates which differ from the tabulated temperatures, or local 
weather experience determined by the code official. 

b. The degree days heating (base 65°F) and cooling (base 65°F) shall be se- 
lected from NOAA "Annual Degree Days to Selected Bases Derived from 
the 1961-1990 Normals," data available from adjacent military installations, 
or other source of local weather data acceptable to the code official. 

c. The climate zone shall be selected from the applicable map provided in Fig- 
ures 902.1(1) through 902.1(51) in Chapter 9 of this code. 



o 



2003 IWTERWATSONAL ENERGY COWSERVATJON CODE'^ 



n 



1 2 2003 IfvSTERNATSONAL ENERGY CONSERVATION CODE® 



ITIAL BUILDING DEI 
AND DESIGN OF Bi 



iIGN BY SYSTEMS ANALYSIS 
IILDINGS UTILIZING 
ERGY SOURCES 



SECTiOM 401 
GENERAL 

4®lol Scope, This chapter estabUshes design criteria in terms 
of total energy use by a residential building, including all of its 
systems. 



402.1 Aiiialysis procedure. Except as explicitly specified by 
this chapter, the standard design home shall be configured and 
simulated using identical methods and techniques as are used in 
the configuration and simulation of the proposed design home. 

402.2 Energy analysis. Compliance with this chapter will re- 
quire an analysis of the annual energy usage, hereinafter called 
an "annual energy analysis." 

Exception: Chapters 5 and 6 establish criteria for different 
energy-consuming and enclosure elements of the building 
which, if followed, will eliminate the requirement for an an- 
nual energy analysis while meeting the intent of this code. 



esign, A building designed in accor- 
dance with this chapter will be deemed as complying with 
this code if the calculated annual energy consumption is not 
greater than a similar building (defined as a "standard de- 
sign") whose enclosure elements and energy-consuming 
systems are designed in accordance with Chapter 5. Specific 
building envelope elements of the standard design shall 
comply with Sections 402.2.1.1 through 402.2.1.4. 



The exterior wall assembly 
{/-Factors for the standard design shall be selected by cli- 
mate in accordance with Table 402.2. 1.1. 

402.2.1.2 Fenestration 27=factor, The fenestration sys- 
tem [/-Factor used in the standard design shall be se- 
lected by climate in accordance with Table 402.2.1.2. 

402.2.1.3 Window area. The window area of the stan- 
dard design, inclusive of the framed sash and glazing 
area, shall be equal to 18 percent of the conditioned floor 
area of the proposed design. 

402.2.1.4 Skylights, Skylights and other nonvertical roof 
glazing elements shall not be included in the standard de- 
sign, and ceiling fZ-factors used in the standard design 
shall not include such elements in their computation. 



1, For a proposed alternative build- 
ing design (defined as a "proposed design") to be considered 
similar to a "standard design," it shall utilize the same 
nonrenewable energy source(s) for the same functions and 
have equal conditioned floor area and the same ratio of ther- 



mal envelope area to floor area (i.e., the same geometry), ex- 
terior design conditions, occupancy, climate data, and usage 
operational schedule as the standard design. Where an en- 
ergy end use (such as space heating or domestic water) is to 
be provided entirely from renewable energy sources in a 
proposed design, the standard design shall assume an equip- 
ment type using a nonrenewable energy source common to 
that region for that end use as approved by the code official. 

402,2,2.1 Orientation for groups of buildings. The 
worst possible orientation of the proposed design, in 
terms of annual energy use, considering north, northeast, 
east, southeast, south, southwest, west and northwest ori- 
entations, shall be used to represent group of otherwise 
identical designs. 



TABLE 402.2.1J 
STANDARD DESIGM WALL ASSEMBLY OS-FACTORS (UJ 


HEAimG DEGREE DAYS' 


y^ (air to air)" 


> 13,000 


0.038 


9,000-12,999 


0.046 


6,500 - 8,999 


0.052 


4,500 - 6,499 


0.058 


3,500 - 4,499 


0.064 


2,600 - 3,499 


0.076 


< 2,600 


0.085 



a. From Table 302.1. 

b. Including framing effects. 



TABLE 402.2.1 .2 
STANDARD DESIGW FENESTRATDOS^ SYSTEM 



I^FACTORS(£/,or4/,) 


HEATWG DEGREE DAYS' 


U FOR SECT80K1 502.2.1.1 AND a FOR 
SECTiON 502.2.3.1 (air to air)* 


> 13,000 


0.25 


9,000 - 12,999 


0.26 


6,500 - 8,999 


0.28 


4,500 - 6,499 


0.30 


3,500 - 4,499 


0.41 


2,600 - 3,499 


0.44 


700 - 2,599 


0.47 


<700 


0.74 



a. From Table 302.1. 

b. Entire assembly, including sash. 



mm HMTERMATDONAL ENERGY CONSERVATION CODE 



13 



RESBDENTIAL BUILDING DESIGN 



402.2,3 Input values for residential bulMimgSo The input 
values in Sections 402.2.3.1 through 402.2.3.11 shall be 
used in calculating annual energy performance. The re- 
quirements of this section specifically indicate which vari- 
ables shall remain constant between the standard design and 
proposed design calculations. The standard design shall be a 
base version of the design that directly complies with the 
provisions of this code. The proposed building shall be per- 
mitted to utilize a design methodology that is demonstrated, 
through calculations satisfactory to the code official, to have 
equal or lower annual energy use than the standard design. 

402.2.3.1 Glazing systems. The input values in Sections 
402.2.3.1.1 through 402.2.3.1.4, specific to glazing sys- 
tems, shall be used in calculating annual energy perfor- 
mance. 



402.2.3.1.1 Orientation, standard design. As a min- 
imum, equal areas on north, east, south and west ex- 
posures shall be assumed. 



402.2.3.1.2 Exterior shading, standard design. 
Glazing areas in the standard design shall not be pro- 
vided with exterior shading such as roof overhangs. 
Energy performance impacts of added exterior shad- 
ing for glazing areas which are accounted for in the 
proposed design for a specific building shall be per- 
mitted, provided that the code official approves the 
actual installation of such systems. 



402.2.3.1.3 Fenestration sj 
efficient, standard design. The fenestration system 
solar heat gain coefficient (SHGC), inclusive of 
framed sash and glazing area, of the glazing systems 
in the standard design shall be 0.40 for HDD < 3,500 
and 0.68 for HDD > 3,500 during periods of mechani- 
cal heating and cooling operation. These fenestration 
system SHGC values shall be multiplied together 
with (added in series to) the interior shading values as 
specified in Section 402.2.3.1.4 to arrive at an overall 
solar heat gain coefficient for the installed glazing 
system. 

Where the SHGC characteristics of the proposed 
fenestration products are not known, the default 
SHGC values given in Table 102.5.2(3) shall be used 
for the proposed design. 



EB> 



402.2.3.1.4 Interior shading, standard desigi 
proposed design. The same schedule of interior 
shading values, expressed as the fraction of the solar 
heat gain admitted by the fenestration system that is 
also admitted by the interior shading, shall be as- 
sumed for the standard and proposed designs. 

The values used for interior shading shall be 0.70 in 
summer, and 0.90 in winter. 

402.2.3.2 Heat storage (thermal mass). The following 
input values, specific to heat storage (thermal mass), 
shall be used in calculating annual energy performance: 

Internal mass: 8 pounds per square foot (39 kg/m^) 

Structural mass: 3.5 pounds per square foot (17 kg/m^) 



The input values in Sections 402.2.3.3.1 
through 402.2.3.3.4, specific to building thermal enve- 
lope surface areas, shall be used in calculating annual en- 
ergy performance. 



,2o3,3.1 Floors, wails, ceiling. The standard and 
proposed designs shall have equal areas. 

402.2.3.3.2 Foundation and floor type. The founda- 
tion and floor type for both the standard and proposed 
designs shall be equal. 

402.2.3.3.3 Doors. The opaque door area of the stan- 
dard design shall equal that of the proposed design 
and shall have a [/-factor of 0.2 Btu/hr • ft^ • °F [1.14 
W/(m2 ■ K)]. 

402.2.3.3.4 Building volume. The volume of both the 
standard and proposed designs shall be equal. 

402.2.3,4 Heating and cooling controls. Unless other- 
wise specified by local codes, heating and coohng ther- 
mostats shall comply with Table 402.2.3.4 for the 
standard and proposed designs. The input values specific 
to heating and cooling controls, shall be used in calculat- 
ing annual energy performance. 



TABLE 402.2.3.4 
llEMENG AND C00L8NG CONTROLS 



PARAWiETER 


STANDARD 
DESIGN VALUE 


proposed DESIGN 
VALUE 


Heating 


68°F 


68°F 


Cooling 


78°F 


78°F 


Setback/setup 


5°F 


Maximum of 5 °F 


Setback/setup duration 


6 hours per day 


Maximum of 6 
hours per day 


Number of setback/setup 
periods per unit^ 


1 


Maximum of 1 


Maximum number of zones 
per unit'* 


2 


2 


Number of thermostats per 
zone 


1 


1 



For SI: °C = [(°F) -32J/1.8 

a. Units = Number of dwelling units in standard and proposed designs. 

402.2.3.S Internal heat gains. Equation 4-1 shall be 
used to determine the input values, specific to internal 
heat gains, that shall be used in both the standard design 
and the proposed design in calculating annual energy 
performance: 

I-Gain = 17,900 + (23.8 • CFA) + (4140 • BR) 

(Equation 4-1) 



where: 
I-Gain = 

CFA 
BR 



Internal gains in Btu/day (kWh/day) per 
dwelling unit. 

Conditioned floor area. 

Number of bedrooms. 



2003 liMTERNATlOMAL ENERGY CONSERVATION CODE® 



RESDDEMTIAL BU1LD8NG DESIGM 



402.23.6 Domestic hot water (cakelate, thee com- 
staots). The following input values, specific to domestic 
hot water, shall be used in calculating annual energy per- 
formance. 



120°F (49°C) 
Gallons = (30 a) + (10 



Temperature set point 

Daily hot water 
consumption 

where: 

a = Number of dwelling units in standard and 
proposed designs. 

b = Number of bedrooms in each dwelling unit. 



b) 



402.2.3.7 Site weather data (comistamts). The typical 
meteorological year (TMY2), or its "ersatz" equivalent, 
from the National Oceanic and Atmospheric Adminis- 
tration (NOAA), or an approved equivalent, for the clos- 
est available location shall be used. 

402.2.3.8 Forcedl=-anr dnstribiRtnom system loss factors 
(DLF). The heating and cooling system efficiency shall 
be proportionately adjusted for those portions of the 
ductwork located outside or inside the conditioned space 
using the values shown below: 



System Operatmg Mode 



Heating 
CooHng 



0.80 
0.80 



1.00 
1.00 



Ducts located in a space that contains a positive 
heating supply or coohng supply, or both, shall be 
considered inside the building envelope. 

Impacts from improved distribution loss factors 
(DLF) shall be accounted for in the proposed design only 
if the entire air distribution system is specified on the 
construction documents to be substantially leak free, and 
is tested after installation to ensure that the installation is 
substantially leak free. "Substantially leak free" shall be 
defined as the condition under which the entire air distri- 
bution system (including the air handler cabinet) is capa- 
ble of maintaining a 0.1-inch w.g. (25 Pa) internal 
pressure at 5 percent or less of the air handler's rated air- 
flow when the return grilles and supply registers are 
sealed off. This test shall be conducted using methods 
and procedures as specified in Section 3 of the SMACNA 
HVAC Air Duct Leakage Test Manual, or by using other, 
similar pressurization test methods and as approved by 
the code official. 

Where test results show that the enfire distribution sys- 
tem is substanfially leak free, then seasonal DLFs shall 
be calculated separately for heating and cooling modes 
using engineering methods capable of considering the 
net seasonal cooling energy heat gain impacts and the net 
seasonal heating energy heat loss impacts that result 
from the portion of the thermal air distribution system 
that is located outside the conditioned space. Once these 



heating and cooling season "distribution system energy 
impacts" are known, then heating and cooling mode 
DLFs for the proposed design shall be calculated using 
Equations 4-2 and 4-3: 

Total Seasonal Energy = Seasonal Building Energy + 
Distribution System Energy Impacts 



DLF = Seasonal Building Energy/Total Seasonal En- 
ergy 

(EqeatioE 4=3) 

Once the DLFs for the heating and coohng seasons are 
known, the total "adjusted system efficiency" is calcu- 
lated using Equation 4-4: 

Adjusted System Efficiency = (Equipment 
Efficiency DLF Percent of Duct Outside) + (Equip- 
ment Efficiency DLF Percent of Duct Inside) 

(Equiatiom 4=4) 

Equation 4-4 shall be used to develop adjusted system 
efficiency for each heating and coohng system included 
in the standard design. Where a single system provides 
both heating and cooling, efficiencies shall be calculated 
separately for heating and cooling modes. 

402.2.3.9 Air miltratlom. Annual average air changes 
per hour (ACH) for the standard design shall be deter- 
mined using the following equation: 

ACH = Normalized Leakage x Weather Factor 

(Equiatiomi 4-S) 

where: 

Normalized leakage = 0.57 

and 

Weather factor is determined in accordance with the 
weather factors (W) given by ASHRAE 136, as taken 
from the weather station nearest the building site. 

Where the proposed design takes credit for reduced 
ACH levels, documentation of measures providing such 
reductions, and results of a post-construction 
blower-door test shall be provided to the code official us- 
ing ASTM E 779. No energy credit shall be granted for 
ACH levels below 0.35. 



Is, When performing annual 
energy analyses for buildings with insulated basement or 
crawl space walls, the design [/-factors taken from Table 
502.2 for these walls of the standard building shall be 
permitted to be decreased by accounting for the /?-values 
of the adjacent soil, provided that the foundation wall 
[/-factor of the proposed building also accounts for the 
/?-value of the adjacent soil. 

402.2o3oll Heatmg amid coolnmg system equipmemt ef= 
fncteEcy, standard desngnn. The efficiency of the heating 
and cooling equipment shall meet, but not exceed the 
minimum efficiency requirement in Section 503.2. 
Where the proposed design utilizes an electric resistance 



2003 IIMTERM^TiOIMAL ENERGY CONSERViSiTllOIMi CODE® 



15 



RESIDENTIAL BUILDING DESIGN 



space heating system as the primary heating source, the 
standard design shall utilize an air-cooled heat pump that 
meets but does not exceed the minimum efficiency re- 
quirements in Section 503.2. 

Exception: Zonal electric-resistance space heating 
equipment in buildings in Climate Zones la through 
4b as indicated in Table 302.1 

402.3 Design. The standard design, conforming to the criteria 
of Chapter 5 and the proposed design, shall be designed on a 
common basis as specified in Sections 402.3.1 through 
402.3.3. 

402.3.1 Units of energy. The comparison shall be expressed 
as Btu input per square foot (W/m^) of gross floor area per 
year at the building site. 

402.3.2 Equivalent energy units. If the proposed design re- 
sults in an increase in consumption of one energy source and 
a decrease in another energy source, even though similar 
sources are used for similar purposes, the difference in each 
energy source shall be converted to equivalent energy units 
for purposes of comparing the total energy used. 

402.3.3 Site energy. The different energy sources shall be 
compared on the basis of energy use at the site where: 1 kWh = 
3,413 Btu. 

402.4 Analysis procedure. The analysis of the annual energy 
usage of the standard and the proposed alternative building and 
system designs shall meet the criteria specified in Sections 
402.4.1 and 402.4.2. 

402.4.1 Load calculations. The building heating and cool- 
ing load calculation procedures used for annual energy con- 
sumption analysis shall be detailed to permit the evaluation 
of effect of factors specified in Section 402.5. 

402.4.2 Simulation details. The calculation procedure used 
to simulate the operation of the building and its service sys- 
tems through a full-year operating period shall be detailed to 
permit the evaluation of the effect of system design, climatic 
factors, operational characteristics, and mechanical equip- 
ment on annual energy usage. Manufacturer's data or com- 
parable field test data shall be used when available in the 
simulation of systems and equipment. The calculation pro- 
cedure shall be based on 8,760 hours of operation of the 
building and its service systems and shall utilize the design 
methods specified in the ASHRAE Fundamentals Hand- 
book. 

402.5 Calculation procedure. The calculation procedure shall 
include the items specified in Sections 402.5.1 through 
402.5.7. 

402.5.1 Design requirements. Environmental require- 
ments as required in Chapter 3. 

402.5.2 Climatic data. Coincident hourly data for tempera- 
tures, solar radiation, wind and humidity of typical days in 
the year representing seasonal variation. 

402.5.3 Building data. Orientation, size, shape, framing, 
mass, air, moisture and heat transfer characteristics. 

402.5.4 Operational characteristics. Temperature, hu- 
midity, ventilation, illumination and control mode for occu- 
pied and unoccupied hours. 



402.5.5 Mechanical equipment. Design capacity and 
part-load profile. 

402.5.6 Building loads. Internal heat generation, lighting, 
equipment and number of people during occupied and unoc- 
cupied periods. 

402.5.7 Use off approved calculation tool. The same calcu- 
lation tool shall be used to estimate the annual energy usage 
for space heating and cooling of the standard design and the 
proposed design. The calculation tool shall be approved by 
the code official. 

402.6 Documentation. Proposed alternative designs, submit- 
ted as requests for exception to the standard design criteria, 
shall be accompanied by an energy analysis comparison report. 
The report shall provide technical detail on the standard and 
proposed designs and on the data used in and resulting from the 
comparative analysis to verify that both the analysis and the de- 
signs meet the criteria of Chapter 4. 

Exception; Proposed alternative designs for residential 
buildings having a conditioned floor area of 5,000 square 
feet (464 m^) or less are exempted from the hourly analysis 
described in Sections 402.4 and 402.5. However, a compari- 
son of energy consumption using correlation methods based 
on full-year hourly simulation analysis or other engineering 
methods that are capable of estimating the annual heating, 
cooling and hot water use between the proposed alternative 
design and the standard design shall be provided. 



2003 BNTERNATIONAL ENERGY CONSERVATION CODE® 



^FTER 



^ESBDEMTBAL BUBLDIM© DESBGN BY C€ 



IT 



OEMERAL 

SOlol Scope. Residential buildings or portions thereof that en- 
close conditioned space shall be constructed to meet the re- 
quirements of this chapter. 



iCiENTS 

5(D2.1 Gemeral reqeirememfts. The building envelope shall 
comply with the applicable provisions of Sections 502.1.1 
through 502. 1 .5 regardless of the means of demonstrating en- 
velope compliance as set forth in Section 502.2. 

SOlol.l Molstare comtroL The design shall not create con- 
ditions of accelerated deterioration from moisture 
condensation. Frame walls, floors and ceilings not venti- 
lated to allow moisture to escape shall be provided with an 
approved vapor retarder having a permeance rating of 1 
perm(5.7x 10~"kg/Pa sm^) or less, when tested in accor- 
dance with the dessicant method using Procedure A of 
ASTM E 96. The vapor retarder shall be installed on the 
warm-in- winter side of the thermal insulation. 

Exceptnoms; 

1 . In construction where moisture or its freezing will 
not damage the materials. 

2. Where the county in which the building is being 
constructed is considered a hot and humid climate 
area and identified as such in Figures 902.1(1) 
through 902.1(51) in Chapter 9 of this code. 

3. Where other approved means to avoid condensa- 
tion in unventilated framed wall, floor, roof and 
ceiling cavities are provided. 

5(11)2.1.2 Masomry vemeer. When insulation is placed on the 
exterior of a foundation supporting a masonry veneer exte- 
rior, the horizontal foundation surface supporting the veneer 
is not required to be insulated to satisfy any foundation insu- 
lation requirement. 

510)2.1.3 Recessed Mghtlmg ffixtares. When installed in the 
building envelope, recessed lighting fixtures shall meet one 
of the following requirements: 

1 . Type IC rated, manufactured with no penetrations be- 
tween the inside of the recessed fixture and ceiling 
cavity and sealed or gasketed to prevent air leakage 
into the unconditioned space. 

2. Type IC or non-IC rated, installed inside a sealed box 
constructed from a minimum 0.5-inch-thick (12.7 
mm) gypsum wallboard or constructed from a pre- 



formed polymeric vapor barrier, or other air-tight as- 
sembly manufactured for this purpose, while main- 
taining required clearances of not less than 0.5 inch 
(12.7 mm) from combustible material and not less 
than 3 inches (76 mm) from insulation material. 

3. Type IC rated, in accordance with ASTM E 283 ad- 
mitting no more than 2.0 cubic feet per minute (cfm) 
(0.944 L/s) of air movement from the conditioned 
space to the ceiling cavity. The lighting fixture shall 
be tested at 1.57 pounds per square foot (psf) (75 Fa) 
pressure difference and shall be labeled. 

502.1,4 Anr leakage. Provisions for air leakage shall be in 
accordance with Sections 502.1.4.1 and 502.1.4.2. 

5(0)2.1.4.1 Wimdlow amd door assemMnes. Window and 
door assemblies installed in the building envelope shall 
comply with the maximum allowable air leakage rates in 
Table 502.1.4.1. D 

EscepMoE: Site-constructed windows and doors 
sealed in accordance with Section 502.1.4.2. 



TABLE 502.1 A1 
ALLOWABLE ABR LEAKAGE RATES^-" 



WINDOWS 

(cfm per square foot of 

window area) 


DOORS 
(cfm per square foot of door area) 


Sliding 


Swinging 


0.3"'" 


0.3" 


0.5=' " 



For SI: 1 cfm/ft^ = 5 L/S • ml 

a. When tested in accordance with ASTM E 283. 

b. See AAMA/WDMA 101/I.S.2. 

c. Requirement based on assembly area. 

d. See NFRC 400. 



5(0)2.1.4.2 Cauilkimg amd sealauits. Exterior joints, seams 
or penetrations in the building envelope, that are sources 
of air leakage, shall be sealed with durable caulking ma- 
terials, closed with gasketing systems, taped or covered 
with moisture vapor-permeable housewrap. Sealing ma- 
terials spanning joints between dissimilar construction 
materials shall allow for differential expansion and con- 
traction of the construction materials. 

This includes sealing around tubs and showers, at the 
attic and crawl space panels, at recessed lights and 
around all plumbing and electrical penetrations. These 
are openings located in the building envelope between 
conditioned space and unconditioned space or between 
the conditioned space and the outside. 

5((D2ol.5 Femestratlom solar Ihealt galm coefficient. In loca- 
tions with heating degree days (HDD) less than 3,500, the 



2003 [INTERNATIONAL ENERGY CONSERVATION CODE^ 



17 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



combined solar heat gain coefficient (the area- weighted av- 
erage) of all glazed fenestration products (including the ef- 
fects of any permanent exterior solar shading devices) in the 
building shall not exceed 0.4. 

502.2 Heating and cooling criteria. The building envelope 
shall meet the provisions of Table 502.2. Compliance shall be 
demonstrated in accordance with Section 502.2.1, 502.2.2, 
502.2.3, 502.2.4 or 502.2.5, as applicable. 

Energy measure tradeoffs utilizing equipment exceeding the 
requirements of Section 503, 504 or 505 shall only use the com- 
pliance methods described in Chapter 4. 

TABLE 502.2 
HEATING AND COOLING CRITERIA^ 



ELEMENT 


MODE 


DETACHED ONE- 

AND TWO-FAMILY 

DWELLINGS 


GROUP R-2, 

R-4 0R 

TOWNHOUSES 


Uo 


Vo 


Walls 


Heating or 
cooling 


— 


— 


Roof/ceiling 


Heating or 
cooling 


— 


— 


Floors over 

unheated 

spaces 


Heating or 
cooling 


— 


— 


Heated slab on 
grade'''^ 


Heating 


/?-value = 


^-value = 


Unheated slab on 


Heating 


/?- value = 


/?-value = 


Basement walP*^ 


Heating or 
cooUng 


fZ-factor = 


[/-factor = 


Crawl space walP'^ 


Heating or 
cooling 


[/-factor = 


[/-factor = 



For SI: 1 Btu/h • ft^ • °F = 5.678 W/Cm^ • K), °C = [(°F)-32]/1.8. 

a. Values shall be determined by using the graphs [Figures 502.2(1), 
502.2(2), 502.2(3), 502.2(4), 502.2(5) and 502.2(6)] using HDD as speci- 
fied in Section 302. 

b. There are no insulation requirements for heated slabs in locations having 
less than 500 HDD. 

c. There are no insulation requirements for unheated slabs in locations hav- 
ing less than 2,500 HDD. 

d. Slab edge insulation is not required for unheated slabs in areas of very 
heavy termite infestation probability in accordance with Section 
502.2. 1 .4, and as shown in Figure 502.2(7). 

e. Basement and crawl space wall L^-factors shall be based on the wall com- 
ponents and surface air films. Adjacent soil shall not be considered in the 
determination of the [/-factor. 

f. Typical foundation insulation techniques can be found in the DOE Build- 
ing Foundation Design Handbook. 



502,2.1 Compliance by performance on an 
component basis. Each component of the building enve- 
lope shall meet the provisions of Table 502.2 as provided in 
Sections 502.2.1.1 through 502.2.1.6. 

502.2.1.1 Walls. The combined thermal transmittance 
value {Ug) of the gross area of exterior walls shall not ex- 
ceed the value given in Table 502.2. Equation 5-1 shall be 



used to determine acceptable combinations to meet this 
requirement: 

(£/,x AJ + (C/^ X Aj +{U, X AJ 



U„ = 



(Equation 5-1) 



where: 



A-w 



A„ = 



= The average thermal transmittance of the gross 
area of the exterior walls. 



U, 



= The gross area of exterior walls. 

= The combined thermal transmittance of the 
various paths of heat transfer through the 
opaque exterior wall area. 

= Area of exterior walls that are opaque. 

= The combined thermal transmittance of all 
glazing within the gross area of exterior walls. 

= The area of all glazing within the gross area of 
exterior walls. 

= The combined thermal transmittance of all 
opaque doors within the gross area of exterior 
walls. 

= The area of all opaque doors within the gross 
area of exterior walls. 



;§:(!) When more than one type of wall, window or 
door is used, the U and A terms for those items shall be 
expanded into subelements as: 

(t/^iA^i) + (C/,2 A,2) + (t/w3^>v3) +••• (etc.) 

(Equation 5-2) 

(2) Access doors or hatches in a wall assembly shall be 
included as a subelement of the wall assembly. 

5(D2.2.1.1.1 Steel stud framed walls. When the walls 
contain steel stud framing, the value of U^ used in 
Equation 5-1 shall be recalculated using a series path 
procedure to correct for parallel path thermal bridg- 
ing. The U^ for purposes of Equation 5- 1 of steel stud 
walls shall be determined as follows: 



U... = 



1 



[Rs + iKs X F,)] 



where: 



R. 



= The total thermal resistance of the elements 
comprising the wall assembly along the path 
of heat transfer, excluding the cavity 
insulation and the steel stud. 

= The i?-value of the cavity insulation. 

= The correction factor listed in Table 
502.2.1.1.1. 



tioe; Overall system tested U^ values for 
steel stud framed walls from approved laborato- 
ries, when such data are acceptable to the code offi- 
cial. 



W 



2003 iWTERWATSONAL ENERGY CONSERVATION CODE® 



RESIDEMTDAL — COIViPONEMT PERFORSVilANCE APPROACIH 



0.40 



0.35 



0.30 — 



0.25 



0.10 



0.05 




0.20 1 



0.15 



ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65°F (in thousands) 



For SI: 1 Btu/h • ft^ • °F = 5.678W/(m2 • K), °C = [(°F)-32]/1.8. 



FIGURE 502.2(1) 




HEATING DEGREE DAYS 



ATO 

1-2,500 

2,501-3,900 

3,901-6,000 

6,001-16,000 

16,001-16,500 

> 16,500 



MAXIMUM L/„-FACTOR 



0.05 

0.05 - (HDD X 0.0000056) 

0.036 

0.036 - [(HDD - 3,900) x 0.00000476] 

0.026 

0.026 - [(HDD - 16,000) x 0.000002] 

0.025 







1 1. ^.. 



I 1 



f + -I — 



1 



8 



10 11 12 13 



14 15 16 17 1{ 



19 20 21 



ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65°F (in thousands) 
For SI: 1 Btu/h • ft^ • °F = 5.678W/(m2 ■ K), °C = [(°F)-32]/1.8. 

FIGURE 502.2(2) 



2003 BWTERWATIION-AL EWERGY CONSERVATiON CODE^ 



19 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



CD 




ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65°F (in thousands) 



For SI: 1 Btu/h • ft^ • °F = 5.678W/(iii2 • K), °C = [(°F)-32]/1.8. 



FIGURE 502.2(3) 
R-VALUES— SLAB ON GRADE 



20 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



RESBDENTIAL — COSViPONEWT PERFOlRWiAlylCE APPROACH 



0.40 



0.35 



^ 0.30 



0.25 



^ 0.20 



0.15 



0.10 



0.05 






-L_- 

I 
I 
I 
+ -- 



^ 1 



— f -I 1 1 



I I 



I I 



] 1, 



\ 1 



1 \ 



J I, 



HEATING DEGREE DAYS 


MAXIMUM L/„-FACTOR 


0-1,000 


0.08 


1,001-2,500 


0.07 


2,501-15,500 


0.05 


15,501-16,500 


0.05 -[HDD- 15,500) X 0.000010] 


> 16,500 


0.04 



.1 1. 



.1 l_ 



-I 4- 1 1 



1. 



-4 -I — 



\. 4 1 1 

I 
I 
I 



+ J 1 



I 1 



1 1 



I 

.-I 1 

I 
I 
I 

-1 1 



I 1 



__ i^irn 



10 



12 



13 



14 



15 



16 



17 



19 



20 



21 



ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65T (in thousands) 



For SI: 1 BtuAi • ft^ • °F = 5.678W/(m2 • K), °C = [(°F)-32]/1.8. 



FIGURE 502.2(4) 
Oo-FACTORS— FLOOR OVER UNHEATED SPACES 



2003 PIMTERNATIOMAL ENERGY COMSERVATDON CODE 



RESIDENTIAL — COIViPONENT PERFORIViANCE APPROACH 




9 10 11 12 13 14 15 16 17 18 19 20 



ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65T (in thousands) 



For SI: 1 Btu/h • ft^ • °F = 5.678W/(m2 • K), °C = [(°F)-32]/1.8. 



FIGURE 502.2(5) 
y-FACTORS— CRAWL SPACE 



22 



2003 INTERMATSONAL EWERGY CONSERVATSOfM CODE*^ 



RESIIDENTIIAL — COMPOWEWT PERFORMANCE APPROACH 




HEATING DEGREE DAYS 



0-1,499 
1,500-4,500 
4,501-8,500 
8,501-9,000 

> 9,000 



— -I 1 1 -,- , 1 ,. ^ 1 



-+- 

I 
I 
1 

■T 



I 1 



I 1 



L/-FACTOR 



NONE REQUIRED 
0.205 - (HDD X 0.0000233) 
0.11125- (HDD X 0.0000025) 
0.6- (HDD X 0.00006) 
0.06 



I 1 



I 1 






1 T 

4 -I- 



i- 1 1 

I 
I 
I 
"T' 



1 1 



I 1 



1 1 

I 1 

I 1 

L. 









1 T 









CO 



-1- 1 1 1 



I 
I 
I 

-i- 1 1 

I 

I 
.1 L. 



I 1 + 1 1 1- i 1 






I I 



I I 






J 1 



^ 1 1 



- + -- 
I 

I 



— I 1 






I 1 



1 1 



J I 



1 1 






1- 4 1 






7 8 



10 11 12 13 14 15 16 17 18 19 20 



ANNUAL FAHRENHEIT HEATING DEGREE DAYS, BASE 65°F (in thousands) 



For SI: 1 Btu/h • ft^ • °F = 5.678W/(m2 • K), °C = [(°F)-32]/1.8. 



FIGURE 502.2(6) 
-BASEMENT 



2003 IINTERNATI10NAL ENERGY C0NSER¥ATI10N CODE® 



23 



o 




MASSACHUSETTS 



RHODE ISLAND 
CONNECTICUT 



NEW JERSEY 
DELAWARE 
MARYLAND 



O 
O 

■o 
o 
s. 
m 
z 

H 
13 

m 

33 

■n 
O 

30 



O 

> 

o 
o 



FIGURE 502.2(7) 
TERMITE INFESTATION PROBABILITY MAP 



RESlDEiSSTD^L — COMPONENT PERFOIRMANCE APPROACH 



-E 502.2.1.1.1 

Fc VALUES FOR WALL SECTIONS WITH STEEL STUDS 
PARALLEL PATH CORRECTION FACTORS 



NOMINAL 
STUD SIZE^ 


SPACING OF 
FRAMING 
(inches) 


CAVITY INSULATION 
«- VALUE 


CORRECTION 
FACTOR 


2x4 


16o.c. 


R-11 
R-13 
R-15 


0.50 
0.46 
0.43 


2x4 


24 o.c. 


R-11 
R-13 
R-15 


0.60 
0.55 
0.52 


2x6 


16o.c. 


R-19 
R-21 


0.37 
0.35 


2x6 


24 o.c. 


R-19 
R-21 


0.45 
0.43 


2x8 


16 o.c. 


R-25 


0.31 


2x8 


24 o.c. 


R-25 


0.38 



For SI: 1 inch = 25.4 mm. 

a. Applies to steel studs up to a maximum thickness of 0.064 inches (16 



S(ID2o2ololo2 Mass walls. When thermal mass credit is 
desired for an exterior wall having a heat capacity 
greater than or equal to 6 Btu/ft^ • °F [1.06 kJ/(m2 • 
K)] , the U„ for such a wall shall be less than or equal to 
the applicable value in Table 502.2.1.1.2(1), 
502.2.1.1.2(2) or 502.2.1.1.2(3) based on the U^ re- 
quired for an exterior wall having a heat capacity less 
than6Btu/ft2 • °F[1.06kJ/(m2 • K)] as determined by 
Section 502.2. 1 . 1 , Equation 5- 1 and Figure 502.2( 1). 



Masonry or concrete walls having a mass 
greater than or equal to 30 Ib/ft^ (146 kg/m^) of ex- 
terior wall area and solid wood walls having a mass 
greater than or equal to 20 Ib/ft^ (98 kg/m^) of exte- 
rior wall area have heat capacities equal to or ex- 
ceeding 6 Btu/ft^ • °F[1.06kJ/(m2 • K)] of exterior 
wall area. 

The heat capacity of the wall shall be determined 
using Equation 5-4 as follows: 



HC = w X c 
where: 



(Eqinatnoira S-4) 



HC = Heat capacity of the exterior wall, Btu/ft^ • °F 
[kJ/(m2 • K)] of exterior wall area. 

w = Mass of the exterior wall, Ib/ft^ (kg/m^) of ex 
terior wall area is the density of the exterior 
wall material, Ib/ft^ (kg/m^) multiphed by the 
thickness of the exterior wall, ft (m). 

c = Specific heat of the exterior wall material, 

Btu/lb • °F [kJ/(kg • K)] of exterior wall area 
as determined from Chapter 24 of the 
ASHRAE Fundamentals Handbook. 



5(ID2o2olo2 Eool^cenlmg. The combined thermal transmit- 
tance value (UJ of the gross area of the roof or ceiling as- 
sembly shall not exceed the value given in Table 502.2. 
Equation 5-5 shall be used to determine acceptable com- 
binations to meet this requirement. 



U„ = 



(U, xA,) + (U, xA,) 



where: 

Ug = The average thermal transmittance of the gross 
roof/ceiling area, Btu/h • ft^ • °F [W/(m2 • K)]. 

Ag = The gross area of the roof/ceihng assembly, 
square feet (m^). 

Ujf = The combined thermal transmittance of the 
various paths of heat transfer through the 
opaque roof/ceiling area, Btu/h • ft^ • °F 
[W/(m2 • K)]. 

Ayj = Opaque roof/ceihng assembly area, 
square feet (m^). 

U^ = The combined thermal transmittance of the area 
of all skylight elements in the roof/ceihng 
assembly (See Section 502.2.1.2.1), 
Btu/h • ft2 • °F [W/(m2 • K)]. 

A^ = The area (including frame) of all skylights in 
the roof/ceihng assembly, square feet (m^). 
(see Section 502.2.1.2.1). 



(U^i X A«,) + (U^2 X A^i) + - etc. 



U, = 



(0.864 X /?.„J + 0330 



where: 

Ri„, = The /?- value of the cavity insulation, 
h • ft2 • °F/Btu. 



O 



(1) When more than one type of roof/ceiling 
and/or skyhght is used, the U and A terms for those items 
shall be expanded into their subelements as in Equation 
5-6: 



(Eqeatioe 5=6) 



(2) Access doors or hatches in a roof/ceiling assembly 
shall be included as a subelement of the roof/ceiling as- 
sembly. 

(3)When the roof/ceiling assembly contains 
cold-formed steel truss framing, the U^ value to be used 
in Equation 5-5 shall be determined by Equation 5-7, 
5-8, or 5-9. These equations apply to cold-formed steel 
truss roof framing spaced at 24 inches (609 mm) on-cen- 
ter and where the penetrations of the truss members 
through the cavity insulation do not exceed three pene- 
trations for each 4-foot (1220 mm) length of the truss. 

For constructions without foam between the drywall 
and bottom chord of the steel truss use Equation 5-7: 



2003 INTERWATIOWAL ENERGY CONSERVATION COD! 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



TABLE 502.2.1.1.2(1) 

REQUIRED U„ FOR WALL WITH A HEAT CAPACITY EQUAL 

TO OR EXCEEDING 6 Btu/ft^ °f WITH INSULATION 

PLACED ON THE EXTERIOR OF THE WALL MASS 



HEATING 

DEGREE 

DAYS 


Uw REQUIRED FOR WALLS WITH A HEAT CAPACITY LESS THAN 6 Btu/ft^ • "F AS DETERMINED 
BY USING EQUATION 5-1 AND FIGURE 502.2(1) 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 


- 2,000 


0.33 


0.31 


0.28 


0.26 


0.23 


0.21 


0.18 


0.16 


0.13 


0.11 


0.08 


2,001 - 4,000 


0.32 


0.30 


0.27 


0.25 


0.22 


0.20 


0.17 


0.15 


0.13 


0.10 


0.08 


4,001 - 5,500 


0.30 


0.28 


0.25 


0.23 


0.21 


0.18 


0.16 


0.14 


0.11 


0.09 


0.07 


5,501 - 6,500 


0.28 


0.26 


0.23 


0.21 


0.19 


0.17 


0.15 


0.12 


0.10 


0.08 


0.06 


6,501 - 8,000 


0.26 


0.24 


0.22 


0.19 


0.17 


0.15 


0.13 


0.11 


0.09 


0.07 


0.05 


> 8,000 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 



For SI: °C = [( °F)-32]/1.8, 1 Btu/ft^ • °F = 0.176 kJAm^ • °K). 



TABLE 502.2.1.1.2(2) 

REQUIRED Uy,fOR WALL WDTH A HEAT CAPACITY EQUAL 

TO OR EXCEEDING 6 Btu/ft^ • °F WITH INSULATION 

PLACED ON THE INTERIOR OF THE WALL MASS 



HEATING 

DEGREE 

DAYS 


y^y REQUIRED FOR WALLS WITH A HEAT CAPACITY LESS THAN 6 Btu/ft^ • °f AS DETERMINED 
BY USING EQUATION 5-1 AND FIGURE 502.2(1) 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 


- 2,000 


0.29 


0.27 


0.25 


0.22 


0.20 


0.17 


0.15 


0.12 


0.09 


0.07 


0.04 


2,001-4,000 


0.28 


0.26 


0.24 


0.21 


0.19 


0.16 


0.14 


0.12 


0.09 


0.07 


0.04 


4,001 - 5,500 


0.27 


0.25 


0.23 


0.21 


0.19 


0.16 


0.14 


0.11 


0.09 


0.07 


0.04 


5,501 - 6,500 


0.26 


0.24 


0.22 


0.20 


0.17 


0.15 


0.13 


0.11 


0.09 


0.06 


0.04 


6,501 - 8,000 


0.25 


0.23 


0.21 


0.19 


0.17 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 


> 8,000 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 



For SI: °C = [(°F)-32]/1.8, 1 Btu/ft^ • °F = 0.176 kJ/Cm^ • °K). 



TABLE 502.2.1.1.2(3) 

REQUIRED U^ FOR WALL WITH A HEAT CAPACITY EQUAL 

TO OR EXCEEDING 6 B4u/ft2 • °F WITH INTEGRAL 

INSULATION (INSULATION AND MASS MIXED, SUCH AS A LOG WALL) 



HEATING 

DEGREE 

DAYS 


U^ REQUIRED FOR WALLS WITH A HEAT CAPACITY LESS THAN 6 Btu/ft^ • "f AS DETERMINED 
BY USING EQUATION 5-1 AND FIGURE 502.2(1) 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 


- 2,000 


0.33 


0.31 


0.28 


0.25 


0.23 


0.20 


0.17 


0.15 


0.12 


0.09 


0.07 


2,001 - 4,000 


0.32 


0.30 


0.27 


0.24 


0.22 


0.19 


0.17 


0.14 


0.11 


0.09 


0.06 


4,001 - 5,500 


0.30 


0.28 


0.26 


0.23 


0.21 


0.18 


0.16 


0.13 


0.11 


0.08 


0.06 


5,501 - 6,500 


0.28 


0.26 


0.24 


0.21 


0.19 


0.17 


0.14 


0.12 


0.10 


0.08 


0.05 


6,501 - 8,000 


0.26 


0.24 


0.22 


0.20 


0.18 


0.15 


0.13 


0.11 


0.09 


0.07 


0.05 


> 8,000 


0.24 


0.22 


0.20 


0.18 


0.16 


0.14 


0.12 


0.10 


0.08 


0.06 


0.04 



For SI: °C = [(°F)-32]/1.8, 1 Btu/ft^ • °F = 0.176 ki/{m^ ■ °K). 



26 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*' 



RESDDEMTDAL — COMPOMEMT PERFORMAiSiCE APPROACIKl 



For constructions with R-3 foam between the drywall 
and bottom chord of the steel truss use Equation 5-8: 

1 



U, = 



(0.864 X R.^J + 4.994 



For constructions with R-5 foam between the drywall 
and bottom chord of the steel truss use Equation 5-9: 

1 



U. = 



(0.864 X R.^ ) + 7.082 



m Overall system tested U,^ values for 
roof/ceiling assemblies from approved laboratories, 
when such data are acceptable to the code official. 

(4)When the roof/ceihng assembly contains conven- 
tional C-shaped cold-formed joist/rafter steel framing, 
the U^ value to be used in equation 5-5 shall be deter- 
mined Equation 5-10 as follows: 

1 



U, = 



R. + 



i^- 



X F, 



where: 

Rs = The total thermal resistance of the elements of 
roof/ceiling construction, in a series along the 
path of heat transfer, excluding the cavity 

insula- 
tion and the steel framing, h • ft^ • °F/Btu. 

/?,„^ = The /?- value of the cavity insulation, 
h • ft2 • °F/Btu. 

F^or = The correction factor listed in Table 
502.2.1.2, dimensionless. 

Exceptiomi Overall system tested 11,^ values for 
roof/ceiling assemblies from approved laboratories, 
when such data are acceptable to the code official. 



S02o2ol.2ol Skyllglits, SkyUght shafts, 12 inches (305 
mm) in depth and greater, shall be insulated to no less 
than R-13 in climates - 4,000 HDD and R-19 in cli- 
mates greater than 4,000 HDD. The skylight shaft 
thermal performance shall not be included in the roof 
thermal transmission coefficient calculation. 

S02.2olo3 Floors over nmliieated spaces. The combined 
thermal transmittance factor (UJ of the gross area of 
floors over unheated spaces shall not exceed the value 
given in Table 502.2. For floors over outdoor air (i.e., 
overhangs), (/„-f actors shall not exceed the value for 
roofs given in Table 502.2. Equation 5-11 shall be used to 
determine acceptable combinations to meet this require- 
ment. 



£/. = 



(^/, X ^/.) + (f//2 X ^72) + K +{Uf„ X A^) 



(EdjmatloE S-11) 



where: 

U„ = 



The average thermal transmittance of the gross 
floor area, Btu/h • ft^ • °F [W/(m2 • K)]. 

The gross area of the different floor assemblies, 
square feet (m^). 

The combined thermal transmittance of the 
various paths of heat transfer through the /i"^ 
floor assembly, Btu/h • ft^ • °F [W/(m2 • K)]. 

The area associated with the n* floor assembly, 
square feet (m^). 

o Access doors or hatches in a floor assembly shall 
be included as a subelement of the floor assembly. 

Exceptiomiss When the floor assembly contains 
C-shaped, cold-formed steel framing, the value of Uf„ 
used in Equation 5-11 shall be recalculated using a se- 



A. = 



U^ = 



Aj^ — 



TABLE 502.2.1.2 





CORRECTION FACTORS (Fpor) FOR ROOF/CEDUNG ASSEMBLIES 




MEMBER 
SIZE^ 


SPACING OF 

FRAMING members" 

(INCHES) 


CAVITY INSULATION R-VALUE 


R-19 


R-30 


R-38 


R-49 


2x4 


16 o.c. 


0.90 


0.94 


0.95 


0.96 


2x6 


0.70 


0.81 


0.85 


0.88 


2x8 


0.35 


0.65 


0.72 


0.78 


2x10 


0.35 


0.27 


0.62 


0.70 


2x12 


0.35 


0.27 


0.51 


0.62 


2x4 


24 o.c. 


0.95 


0.96 


0.97 


0.97 


2x6 


0.78 


0.86 


0.88 


0.91 


2x8 


0.44 


0.72 


0.78 


0.83 


2x10 


0.44 


0.35 


0.69 


0.76 


2x12 


0.44 


0.35 


0.61 


0.69 



For SI: 1 inch = 25.4 mm. 

a. Applies to steel framing members up to a maximum thickness of 0.064 inches (16 gage). 

b. Linear interpolation for determining correction factors which are intermediate between those given in the table is permitted. 



2003 INTERNATIONAL ENERGY CONSERVATION CODI 



27 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



ries of path procedure to correct for parallel path ther- 
mal bridging. The f/^ for purposes of Equation 5-11 
for C-shaped, cold-formed steel-framing construc- 
tion shall be determined using Equation 5-12 as fol- 
lows: 



Ufn = 



1 



I) 



R^ + 



(«.. 



X F, 



where: 
R^ = 



The total thermal resistance of the elements of 
floor construction, in series along the path of 
heat transfer, excluding the cavity insulation and 
the steel joist, h • ft^ -"F/Btu. 

Ri„^ = The /?- value of the cavity insulation, 
h • ft2 • °F/Btu. 

F^g^ = The correction factor listed in Table 502.2.1.3, 
dimensionless. 

Exception: Overall system tested 11^ values for steel- 
framed floors from approved laboratories, when such 
data are acceptable to the code official. 

502,2.1.4 Slab=om-grade floors. The thermal resistance 
of the insulation around the perimeter of the floor shall 
not be less than the value given in Table 502.2. Where in- 
sulation is not required in accordance with Footnote d to 
Table 502.2, building envelope compliance shall be dem- 
onstrated by using Section 502.2.2 or Chapter 4 with the 
actual slab insulation /?-value in Table 502.2; or using 
Section 502.2.4. 

Insulation shall be of an approved type, and placed on 
the outside of the foundation or on the inside of a founda- 
tion wall. In climates below 6,000 annual Fahrenheit 
HDD, the insulation shall extend downward from the ele- 



vation of the top of the slab for a minimum distance of 24 
inches (610 mm) or downward to at least the bottom of 
the slab and then horizontally to the interior or exterior 
for a minimum total distance of 24 inches (610 mm). In 
all climates equal to or greater than 6,000 HDD, the insu- 
lation shall extend downward from the elevation of the 
top of the slab for a minimum of 48 inches (1219 mm) or 
downward to at least the bottom of the slab and then hori- 
zontally to the interior or exterior for a minimum total 
distance of 48 inches (1219 mm). In all climates, hori- 
zontal insulation extending outside of the foundation 
shall be covered by pavement or by soil a minimum of 10 
inches (254 mm) thick. The top edge of the insulation in- 
stalled between the exterior wall and the edge of the 
interior slab shall be permitted to be cut at a 45-degree 
(0.8 rad) angle away from the exterior wall. 

502.2.1.5 Crawl space walls. If the floor above a crawl 
space does not meet the requirements of Section 
502.2.1.3 and the crawl space does not have ventilation 
openings that communicate directly with the outside air, 
then the exterior walls of the crawl space shall have a 
thermal transmittance value not exceeding the value 
given in Table 502.2. Where the inside ground surface is 
12 inches (305 mm) or greater below the outside finish 
ground level, insulation shall extend from the top of the 
wall to at least the inside ground surface [see Appendix 
Detail 502.2.1.5(1) and the DOE Foundation Design 
Handbook]. Where the inside ground surface is less than 
12 inches (305 mm) below the outside finish ground 
level, insulation shall extend from the top of the crawl 
space wall to the top of the footing [see Appendix Detail 
502.2.1.5(2) and the DOE Foundation Design Hand- 
book]. 



TABLE 502.2.1.3 
CORRECTBON FACTORS {Fcor) FOR STEEL FLOOR ASSEMBL8ES 



MEMBER 
SIZE^ 


SPACING OF 
FRAMING 

members" 

(INCHES) 


CAVITY INSULATION W-VALUE 


R-19 


R-30 


R-38 


2x6 


16 o.c. 


0.70 


Not Applicable 


Not Applicable 


2x8 


0.35 


Not Applicable 


Not Applicable 


2x10 


0.35 


0.27 


Not Applicable 


2x12 


0.35 


0.27 


0.24 


2x6 


24 o.c. 


0.78 


Not Applicable 


Not Applicable 


2x8 


0.44 


Not Applicable 


Not Applicable 


2x10 


0.44 


0.35 


Not Applicable 


2x12 


0.44 


0.35 


0.32 



For SI: 1 inch = 25.4 mm. 

a. Applies to steel framing members up to a maximum thickness of 0.064 inches (16 gage). 

b. Linear interpolation is permitted for determining correction factors which are between those given in the table. 



28 



2003 BNTERNATJONAL ENERGY COFVSSERVATSON CODE'' 



RESDDEMTIAL — COMPOWEMT PERFORMANCE APPROACH 



502,2.1o6 Basememt walko The exterior walls of condi- 
tioned basements shall have a transmittance value not ex- 
ceeding the value given in Table 502.2 from the top of the 
basement wall to a depth of 10 feet (3048 mm) below the 
outside finish ground level, or to the level of the basement 
floor, whichever is less. 

S02.2o2 Compllamce by total bmiiMiirag emvelope perffor- 
mamce. The building envelope design of a proposed build- 
ing shall be permitted to deviate from the [/^-factors, 
[/-factors, or ^-values specified in Table 502.2, provided the 
total thermal transmission heat gain or loss for the proposed 
building envelope does not exceed the total heat gain or loss 
resulting from the proposed building's conformance to the 
values specified in Table 502.2. For basement and crawl 
space walls that are part of the building envelope, the [/-fac- 
tor of the proposed foundation shall be adjusted by the 
/?- value of the adjacent soil where the corresponding [/-fac- 
tor in Table 502.2 is similarly adjusted. Heat gain or loss cal- 
culations for slab edge and basement or crawl space wall 
foundations shall be determined using methods consistent 
with the ASHRAE Fundamentals Handbook. 

S02o2o3 CompMamce by acceptable practice om ae mdln= 
vManal compoeeEt basis. Each component of the building 
envelope shall meet the provisions of Table 502.2 as pro- 
vided in Sections 502.2.3.1 through 502.2.3.6. The various 
walls, roof and floor assemblies described in Section 
502.2.3 are typical and are not intended to be all inclusive. 
Other assemblies shall be permitted, provided documenta- 
tion is submitted indicating the thermal transmittance value 
of the opaque section. Documentation shall be in accor- 
dance with accepted engineering practice. 

5®2o2o3J WallSo The [/„ of the exterior wall shall be de- 
termined in accordance with Equation 5-13. 

(UfXAf) + U^x(lOO-Af) 



[/, 



where: 



100 



(Equattnoim 5=13) 



Ug = The overall thermal transmittance of the gross 
exterior wall area. 

Uf = The average thermal transmittance of the glaz- 
ing area. 

Glazing Area 



A, = 



Gross Exterior Wall Area x 100 



(Eqaiatnom 5=14) 

U^^ = The average thermal transmittance of the 
opaque exterior wall area. 

The [/-factor for the opaque portion of the exterior 
wall (UJ shall meet the provisions of Table 502.2 as de- 
termined by Equation 5-13, and be selected from Table 
502.2.3.1(1), 502.2.3.1(2) or 502.2.3.1(3) listed in the 
Appendix. The glazing [/-factor (Uf) and the percentage 
of glazing area (Ay) shall consist of all glazed surfaces in 
the building envelope measured using the rough opening 



and including the sash, curbing and other framing ele- 
ments that enclose conditioned spaces. The value of Uf 
shall be determined in accordance with Section 102.5.2. 
Opaque doors in the building envelope shall have a maxi- 
mum [/-factor of 0.35. One door shall be exempt from 
this requirement. 



1 . When the exterior wall(s) is comprised of steel 
stud framing members, the procedure con- 
tained in Section 502.2.1.1.1 shall be used to 
adjust the [/-factor of the opaque sections of 
such walls prior to selection of the appropriate 
acceptable practice(s) from Appendix Table 
502.2.3.1(1). 

2. When the thermal mass of the exterior building 
walls is considered, the procedure contained in 
Section 502.2.1.1.2 shall be used to adjust the 
[/-factor of the opaque sections of such walls 
prior to the selection of the appropriate accept- 
able practice(s) from Table 502.2.3.1(2) or 
502.2.3.1(3) listed in the Appendix. 



The roof/ceiling assembly shall 
be selected from Appendix Table 502.2.3.2 for a thermal 
transmittance value not exceeding the value specified for 
roofs/ceilings in Table 502.2. 



m; When the roof/ceiling is comprised of as- 
semblies containing truss type or C-shaped, 
cold-formed steel-framing members, the procedure 
outlined in Section 502.2.1.2 shall be used to adjust 
the roof/ceihng [/-factor before selecting a roof/ceil- 
ing assembly from Appendix Table 502.2.3.2. 

5(02.23.3 Floors over emliieatedl spaces. The floor sec- 
tion over an unheated space shall be selected from Ap- 
pendix Table 502.2.3.3 for the overall thermal 
transmittance factor (UJ not exceeding the value speci- 
fied for floors over unheated spaces in Table 502.2. For 
floors over outdoor air (i.e., overhangs), [/^-factors for 
heating shall meet the same requirement as shown for 
roofs/ceilings in Table 502.2. 

Exceptnom; When the floor is comprised of C-shaped, 
cold-formed steel-framing members, the procedure 
outlined in Section 502.2.1.3 shall be used to adjust 
the floor [/-factor before selecting a floor assembly 
from Appendix Table 502.2.3.3. 



5([D2.2.3.4 Slab=oini=gradle loors, Slab-on-grade floors 
shall meet the provisions of Table 502.2 as determined by 
Section 502.2.1.4. 



Is. Where the floor above a 
crawl space does not meet the requirements of Section 
502.2.3.3 and the crawl space does not have ventilation 
openings that conamunicate directly with the outside air, 
then the exterior walls of the crawl space shall have a 
thermal transmittance value not exceeding the value 
given in Table 502.2. The [/-factor of the exterior crawl 
space wall shall be determined by selecting the [/-factor 



2003 BNTERNATDONAL ENERGY CONSERVATIOW CODE 



29 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



for the appropriate crawl space wall section for Appen- 
dix Table 502.2.3.5.Where the inside ground surface is 
12 inches (305 mm) or greater below the outside finish 
ground level, insulation shall extend from the top of the 
wall to at least the inside ground surface [see Appendix 
Detail 502.2.1.5(1) and the DOE Foundation Design 
Handbook]. Where the inside ground surface is less than 
12 inches (305 mm) below the outside finish ground 
level, insulation shall extend from the top of the crawl 
space wall to the top of the footing [see Appendix Detail 
502.2.1.5(2) and the DOE Foundation Design Hand- 
book]. 

502.2.3.6 Basement walls. The exterior walls of condi- 
tioned basements shall have a thermal transmittance 
value not exceeding the value given in Table 502.2 from 
the top of the basement wall to a depth of 10 feet (3048 
mm) below grade, or to the level of the basement floor, 
whichever is less. The f/-f actor of the wall shall be deter- 
mined by selecting the [/-factor for the wall section from 
Appendix Table 502.2.3.6. 

502.2.4 Compliance by prescriptive specification on am 
individual component basis. For buildings with a window 
area less than or equal to 8 percent, 12 percent, 15 percent, 
18 percent, 20 percent or 25 percent (detached one- and 
two-family dwellings) or 20 percent, 25 percent or 30 per- 



cent (Group R-2, R-4 or townhouse residential buildings) of 
the gross exterior wall area, the thermal resistance of insula- 
tion apphed to the opaque building envelope components 
shall be greater than or equal to the minimum 7?- values, and 
the area- weighted average thermal transmittance ([/-factor) 
of all fenestration assemblies (other than opaque doors 
which are governed by Section 502.2.4.6) shall be less than 
or equal to the maximum [/-factors shown in Table 
502.2.4(1), 502.2.4(2), 502.2.4(3), 502.2.4(4), 502.2.4(5), 
502.2.4(6), 502.2.4(7), 502.2.4(8), or 502.2.4(9), as appH- 
cable. Sections 502.2.4.1 through 502.2.4.19 shall apply to 
the use of these tables. 

502.2.4.1 Walls. The sum of the thermal resistance of 
cavity insulation plus insulating sheathing (if used) shall 
meet or exceed the "Exterior wall 7?-value." 

502.2.4.2 Wood construction only. The tables shall only 
be used for wood construction. 

502.2.4.3 Window area. The actual window area of a 
proposed design shall be computed using the rough 
opening area of all skylights, above-grade windows and, 
where the basement is conditioned space, any basement 
windows. 

502.2.4.4 Window area, exempt. One percent of the to- 
tal window area computed under Section 502.2.4.3 shall 
be exempt from the "Glazing [/-factor" requirement. 



PRESCRIPTIVE BUILDING ENVELOPE 
WINDOW AREA 8 



TABLE 502.2.4(1) 
REQUIREMENTS, DETACHED ONE- AND TWO-FAMILY DWELLINGS 
PERCENT OF GROSS EXTERIOR WALL AREA 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
(Afactor 


Ceiling 
R-value 


Exterior wall 
/7-value 


Floor 
R-value 


Basement wall 
ff-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
R-value 


1 


0-499 


Any 


R-13 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


Any 


R-19 


R-U 


R-U 


R-0 


R-0 


R-4 


3 


1,000- 1,499 


Any 


R-19 


R-11 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


Any 


R-19 


R-11 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.90 


R-19 


R-11 


R-U 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.70 


R-26 


R-11 


R-U 


R-5 


R-0 


R-6 


7 


3,000 - 3,499 


0.70 


R-26 


R-11 


R-13 


R-5 


R-0 


R-6 


8 


3,500 - 3,999 


0.65 


R-30 


R-11 


R-13 


R-6 


R-2, 2 ft. 


R-7 


9 


4,000 - 4,499 


0.59 


R-30 


R-11 


R-15 


R-8 


R-2, 2 ft. 


R-9 


10 


4,500 - 4,999 


0.55 


R-30 


R-13 


R-15 


R-8 


R-2, 2 ft. 


R-12 


11 


5,000 - 5,499 


0.52 


R-30 


R-13 


R-19 


R-9 


R-7, 2 ft. 


R-16 


12 


5,500 - 5,999 


0.45 


R-38 


R-13 


R-19 


R-9 


R-7, 2 ft. 


R-16 


13 


6,000 - 6,499 


0.45 


R-38 


R-16 


R-19 


R-10 


R-7, 4 ft. 


R-16 


14 


6,500 - 6,999 


0.43 


R-38 


R-16 


R-19 


R-10 


R-7, 4 ft. 


R-16 


15 


7,000 - 8,499 


0.42 


R-38 


R-16 


R-19 


R-U 


R-8, 4 ft. 


R-16 


16 


8,500 - 8,999 


0.42 


R-38 


R-16 


R-19 


R-16 


R-8, 4 ft. 


R-16 


17 


9,000-12,999 


0.42 


R-38 


R-16 


R-19 


R-16 


R-U, 4 ft. 


R-16 



For SI: 1 foot = 304.8 mm. 



30 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



RESBDEWTIAL — COMPONEWT PERFORMAMCE APPROACH 



PRESCRDPTBVE B 



ENVELOPE RE' 
WSIMD0WAREA12PE 



LE 502.2.4(2) 
1\«EMTS, DETACHED ONE 
ENT OF GROSS EXTERIOR 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMOM 


MDNIMUM 


Glazing 
U-factor 


Ceiling 
^-value 


Exterior wall 
/?-value 


Floor 
R-value 


Basement wall 
W-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
^-value 


1 


0-499 


Any 


R-13 


R-U 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


Any 


R-19 


R-11 


R-11 


R-0 


R-0 


R-4 


3 


1,000-1,499 


0.75 


R-19 


R-11 


R-U 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.75 


R-19 


R-11 


R-U 


R-4 


R-0 


R-5 


5 


2,000 - 2,499 


0.65 


R-19 


R-13 


R-U 


R-5 


R-0 


R-5 


6 


2,500 - 2,999 


0.60 


R-26 


R-13 


R-13 


R-5 


R-0 


R-5 


7 


3,000 - 3,499 


0.60 


R-30 


R-13 


R-15 


R-6 


R-0 


R-6 


8 


3,500 - 3,999 


0.60 


R-30 


R-13 


R-19 


R-8 


R-4, 2 ft. 


R-10 


9 


4,000 - 4,499 


0.55 


R-38 


R-13 


R-19 


R-9 


R-4, 2 ft. 


R-12 


10 


4,500 - 4,999 


0.50 


R-38 


R-14 


R-19 


R-9 


R-5, 2 ft. 


R-16 


11 


5,000 - 5,499 


0.45 


R-38 


R-16 


R-19 


R-9 


R-6, 2 ft. 


R-16 


12 


5,500 - 5,999 


0.45 


R-38 


R-17 


R-19 


R-9 


R-6, 2 ft. 


R-16 


13 


6,000 - 6,499 


0.40 


R-38 


R-18 


R-19 


R-10 


R-6, 4 ft. 


R-16 


14 


6,500 - 6,999 


0.40 


R-49 


R-21 


R-19 


R-10 


R-7, 4 ft. 


R-17 


15 


7,000 - 8,499 


0.40 


R-49 


R-21 


R-19 


R-10 


R-9, 4 ft. 


R-17 


16 


8,500 - 8,999 


0.40 


R-49 


R-21 


R-19 


R-16 


R-9, 4 ft. 


R-17 


17 


9,000 - 12,999 


0.40 


R-49 


R-21 


R-19 


R-16 


R-U, 4 ft. 


R-17 



For SI: 1 foot = 304.8 mm. 



TABLE 502.2.4(3) 
PRESCRDPTJVE BUILDING ENVELOPE REQU8REMENTS, DETACHED ONE- AND TWO-FAMDLY DWELLINGS 
WDNDOW AREA 15 PERCENT OF GROSS EXTER80 



ZONE 


HEATING 
DEGREE DAYS 


iVJAXIiVlUlVJ 


IVlINIiVlUM 


Glazing 
U-factor 


Ceiling 
n-value 


Exterior wall 
R-value 


Floor 
R-value 


Basement wall 
B-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
n-value 


1 


0-499 


Any 


R-13 


R-U 


R-U 


R-0 


R-0 


R-0 


2 


500 - 999 


0.90 


R-19 


R-U 


R-U 


R-0 


R-0 


R-4 


3 


1,000-1,499 


0.75 


R-19 


R-U 


R-U 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.75 


R-26 


R-13 


R-U 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.65 


R-30 


R-13 


R-U 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.60 


R-30 


R-13 


R-19 


R-6 


R-4, 2 ft. 


R-7 


7 


3,000 - 3,499 


0.55 


R-30 


R-13 


R-19 


R-7 


R-4, 2 ft. 


R-8 


8 


3,500 - 3,999 


0.50 


R-30 


R-13 


R-19 


R-8 


R-5, 2 ft. 


R-10 


9 


4,000 - 4,499 


0.45 


R-38 


R-13 


R-19 


R-8 


R-5, 2 ft. 


R-U 


10 


4,500 - 4,999 


0.45 


R-38 


R-16 


R-19 


R-9 


R-6, 2 ft. 


R-17 


U 


5,000 - 5,499 


0.45 


R-38 


R-18 


R-19 


R-9 


R-6, 2 ft. 


R-17 


12 


5,500 - 5,999 


0.40 


R-38 


R-18 


R-21 


R-10 


R-9, 2 ft. 


R-19 


13 


6,000 - 6,499 


0.35 


R-38 


R-18 


R-21 


R-10 


R-9, 4 ft. 


R-20 


14 


6,500 - 6,999 


0.35 


R-49 


R-21 


R-21 


R-U 


R-U, 4 ft. 


R-20 


15 


7,000 - 8,499 


0.35 


R-49 


R-21 


R-21 


R-U 


R-13, 4 ft. 


R-20 


16 


8,500 - 8,999 


0.35 


R-49 


R-21 


R-21 


R-18 


R-14, 4 ft. 


R-20 


17 


9,000-12,999 


0.35 


R-49 


R-21 


R-21 


R-19 


R-18, 4 ft. 


R-20 



For SI: I foot = 304.8 mm. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



31 



RESIDENTIAL — COMPONENT PERFORIViANCE APPROACH 



PRESCRIPTIVE BUILDING ENVELOPE F 

AREA 18 



TABLE 502.2.4(4) 
EQUIIREMENTS, DETACHED ONE- AND TWO-FAMILY DWELLINGS 
ERCENT OF GROSS EX" 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
y-factor 


Ceiling 
R-value 


Exterior wall 
R-va\uB 


Floor 
R-value 


Basement wall 
R-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
R-value 


1 


0-499 


0.80 


R-19 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


0.75 


R-19 


R-11 


R-11 


R-0 


R-0 


R-4 


3 


1,000-1,499 


0.70 


R-26 


R-13 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.65 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.52 


R-30 


R-13 


R-19 


R-6 


R-0 


R-7 


7 


3,000 - 3,499 


0.50 


R-38 


R-13 


R-19 


R-7 


R-0 


R-8 


8 


3,500 - 3,999 


0.46 


R-38 


R-13 


R-19 


R-8 


R-6, 2 ft. 


R-11 


9 


4,000 - 4,499 


0.40 


R-38 


R-13 


R-19 


R-9 


R-6, 2 ft. 


R-13 


10 


4,500 - 4,999 


0.37 


R-38 


R-15 


R-19 


R-9 


R-6, 2 ft. 


R-16 


11 


5,000 - 5,499 


0.37 


R-38 


R-16 


R-19 


R-9 


R-7, 2 ft. 


R-17 


12 


5,500 - 5,999 


0.37 


R-38 


R-19 


R-19 


R-10 


R-8, 2 ft. 


R-17 


13 


6,000 - 6,499 


0.34 


R-49 


R-22 


R-19 


R-10 


R-8, 4 ft. 


R-17 


14 


6,500 - 6,999 


0.33 


R-49 


R-22 


R-25 


R-11 


R-14,4ft. 


R-19 


15 


7,000 - 8,499 


0.33 


R-49 


R-25 


R-30 


R-15 


Note a 


R-25 


16 


8,500 - 8,999 


0.33 


R-49 


R-25 


R-30 


R-19 


Note a 


R-25 


17 


9,000-12,999 


0.33 


R-49 


R-25 


R-30 


R-19 


Note a 


R-25 



For SI: 1 foot = 304.8 mm. 
a. See Section 502.2.4.13. 



PRESCRIPTIVE BUILDING ENVELOPE RE 
WINDOW AREA 20 PE 



TABLE 502.2.4(5) 
QUIREWIENTS, DETACHED ONE- AND TWO-FAiVlILY DWELLINGS 
RCENT OF GROSS EXTEff 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
L/-factor 


Celling 
/?-value 


Exterior wall 
W-value 


Floor 
/7-value 


Basement wall 
R-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
R-value 


1 


0-499 


0.80 


R-19 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


0.75 


R-30 


R-13 


R-11 


R-0 


R-0 


R-4 


3 


1,000-1,499 


0.70 


R-30 


R-13 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.60 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.52 


R-38 


R-13 


R-11 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.50 


R-38 


R-13 


R-19 


R-6 


R-0 


R-7 


7 


3,000 - 3,499 


0.46 


R-38 


R-13 


R-19 


R-7 


R-0 


R-9 


8 


3,500 - 3,999 


0.42 


R-38 


R-13 


R-19 


R-8 


R-6, 2 ft. 


R-10 


9 


4,000 - 4,499 


0.37 


R-38 


R-13 


R-19 


R-9 


R-6, 2 ft. 


R-13 


10 


4,500 - 4,999 


0.37 


R-38 


R-16 


R-19 


R-9 


R-6, 2 ft. 


R-16 


11 


5,000-5,499 


0.36 


R-38 


R-19 


R-19 


R-9 


R-6, 2 ft. 


R-16 


12 


5,500 - 5,999 


0.33 


R-49 


R-20 


R-19 


R-10 


R-7, 2 ft. 


R-17 


13 


6,000 - 6,499 


0.31 


R-49 


R-24 


R-19 


R-10 


R-7, 4 ft. 


R-17 


14 


6,500 - 6,999 


0.30 


R-49 


R-26 


R-21 


R-11 


R-10, 4 ft. 


R-17 


15 


7,000 - 8,499 


0.30 


R-49 


R-26 


R-21 


R-11 


R-12,4ft. 


R-19 


16 


8,500 - 8,999 


0.30 


R-49 


R-26 


R-21 


R-19 


R-12,4ft. 


R-19 


17 


9,000 - 12,999 


0.30 


R-49 


R-26 


R-21 


R-19 


R-16, 4 ft. 


R-19 



For SI: 1 foot = 304.8 mm. 



32 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



RESDDENTIIAL — COMPONEWT PERFORMANCE APPROACH 



,E 502.2.4 
VELOPE REQUBREBViENTS, Dl 
AREA 25 PERCENT OF GRO! 



;tached one- and two-fawjiily dwellings 

;S EXTERIOR WALL AREA 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
y-factor 


Ceiling 
R-va\ue 


Exterior wall 
R-value 


Floor 
R-value 


Basement wall 
R-value 


Slab perimeter 
W-value and depth 


Crawl space wall 
fl-value 


1 


0-499 


0.70 


R-30 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


0.65 


R-30 


R-13 


R-U 


R-0 


R-0 


R-4 


3 


1,000 - 1,499 


0.55 


R-30 


R-13 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.52 


R-30 


R-13 


R-13 


R-6 


R-0 


R-6 


5 


2,000 - 2,499 


0.50 


R-38 


R-13 


R-19 


R-8 


R-0 


R-10 


6 


2,500 - 2,999 


0.46 


R-38 


R-16 


R-19 


R-6 


R-0 


R-7 


7 


3,000 - 3,499 


0.45 


R-38 


R-19 


R-19 


R-7 


R-0 


R-9 


8 


3,500 - 3,999 


0.41 


R-38 


R-19 


R-19 


R-8 


R-6, 2 ft. 


R-10 


9 


4,000 - 4,499 


0.37 


R-38 


R-19 


R-19 


R-9 


R-6, 2 ft. 


R-13 


10 


4,500 - 4,999 


0.33 


R-38 


R-19 


R-19 


R-9 


R-6, 2 ft. 


R-17 


11 


5,000 - 5,499 


0.29 


R-38 


R-19 


R-19 


R-9 


R-6, 2 ft. 


R-17 


12 


5,500 - 5,999 


0.27 


R-38 


R-19 


R-21 


R-10 


Note a 


R-22 


13 


6,000 - 6,499 


0.25 


R-49 


R-19 


R-21 


R-10 


R-9, 4 ft. 


R-20 


14 


6,500 - 6,999 


0.25 


R-49 


R-19 


R-30 


R-14 


Note a 


Note a 


15 


7,000 - 8,499 


0.25 


R-49 


R-19 


R-30 


R-15 


Note a 


Note a 


16 


8,500 - 8,999 


0.25 


R-49 


R-19 


R-30 


R-28 


Note a 


Note a 


17 


9,000 - 12,999 


0.25 


R-49 


R-19 


R-30 


R-28 


Note a 


Note a 



For SI: 1 foot = 304.8 mm. 
a. See Section 502.2.4.13. 



TABLE 502.2.4(7) 
PRESCRIPTIVE BOILDBNG ENVELOPE REQUDREMENTS, GROUP R-2, R-4 OR 

aEA 20 PERCENT OF GROSS EXTERIOR 



E RESIDE 
WALL AREA 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
U-factor 


Ceiling 
R-value 


Exterior wall 
R-value 


Floor 
ff-value 


Basement wall 
R-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
R-value 


1 


0-499 


Any 


R-13 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


Any 


R-19 


R-11 


R-11 


R-0 


R-0 


R-5 


3 


1,000-1,499 


Any 


R-19 


R-11 


R-U 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.85 


R-19 


R-11 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.70 


R-19 


R-11 


R-11 


R-5 


R-0 


R-5 


6 


2,500 - 2,999 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


7 


3,000 - 3,499 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


8 


3,500 - 3,999 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


9 


4,000 - 4,499 


0.55 


R-38 


R-13 


R-11 


R-5 


R-0 


R-5 


10 


4,500 - 4,999 


0.50 


R-26 


R-11 


R-13 


R-6 


R-0 


R-7 


11 


5,000 - 5,499 


0.50 


R-26 


R-13 


R-11 


R-5 


R-0 


R-6 


12 


5,500 - 5,999 


0.50 


R-30 


R-13 


R-11 


R-5 


R-0 


R-6 


13 


6,000 - 6,499 


0.50 


R-26 


R-13 


R-19 


R-9 


R-5, 4 ft. 


R-14 


14 


6,500 - 6,999 


0.45 


R-30 


R-13 


R-19 


R-10 


R-7, 4 ft. 


R-16 


15 


7,000 - 8,499 


0.35 


R-38 


R-16 


R-19 


R-11 


R-9, 4 ft. 


R-18 


16 


8,500 - 8,999 


0.35 


R-38 


R-16 


R-19 


R-17 


R-10, 4 ft. 


R-18 


17 


9,000-12,999 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 



For SI: 1 foot = 304.8 mm. 
a. See Section 502.2.4.13. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'* 



33 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



TABLE 502.2.4(8) 

PRESCRIPTIVE BUILDING ENVELOPE REQUIREMENTS, GROUP R-2, R-4 OR TOWNHOUSE RESIDENTIAL BUILDINGS 

WINDOW AREA 25 PERCENT OF GROSS EXTERIOR WALL AREA 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
(Afactor 


Ceiling 
/7-value 


Exterior wall 
R-value 


Floor 
R-value 


Basement wall 
R-value 


Slab perimeter 
ff-value and depth 


Crawl space wall 
ff-value 


1 


0-499 


Any 


R-13 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


Any 


R-19 


R-11 


R-11 


R-0 


R-0 


R-5 


3 


1,000-1,499 


Any 


R-19 


R-11 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.85 


R-19 


R-11 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.70 


R-19 


R-11 


R-11 


R-5 


R-0 


R-5 


6 


2,500 - 2,999 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


7 


3,000 - 3,499 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


8 


3,500 - 3,999 


0.55 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


9 


4,000 - 4,499 


0.54 


R-30 


R-13 


R-11 


R-5 


R-0 


R-5 


10 


4,500 - 4,999 


0.53 


R-30 


R-13 


R-11 


R-5 


R-0 


R-6 


11 


5,000 - 5,499 


0.52 


R-30 


R-13 


R-11 


R-5 


R-0 


R-6 


12 


5,500 - 5,999 


0.51 


R-30 


R-13 


R-11 


R-6 


R-0 


R-6 


13 


6,000 - 6,499 


0.51 


R-30 


R-13 


R-19 


R-10 


R-7, 4 ft. 


R-16 


14 


6,500 - 6,999 


0.45 


R-30 


R-13 


R-19 


R-10 


R-7, 4 ft. 


R-16 


15 


7,000 - 8,499 


0.35 


R-38 


R-16 


R-19 


R-11 


R-9, 4 ft. 


R-18 


16 


8,500 - 8,999 


0.35 


R-38 


R-16 


R-19 


R-17 


R-10, 4 ft. 


R-18 


17 


9,000 - 12,999 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 



For SI: 1 foot = 304.8 mm. 
a. See Section 502.2.4.13 



TABLE 502.2.4(9) 
PRESCRIPTIVE BUILDING ENVELOPE REQUIREMENTS, GROUP R-2, R-4 OR TOWNHOUSE RESIDENTIAL BUILDINGS 

WINDOW AREA 30 PERCENT OF GROSS EXTERIOR WALL AREA 



ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
(Afactor 


Ceiling 
fl-value 


Exterior wall 
/7-value 


Floor 
ff-value 


Basement wall 
/?-value 


Slab perimeter 
R-value and depth 


Crawl space wall 
/7-value 


1 


0-499 


0.90 


R-13 


R-11 


R-11 


R-0 


R-0 


R-0 


2 


500 - 999 


0.75 


R-19 


R-11 


R-11 


R-0 


R-0 


R-3 


3 


1,000- 1,499 


0.70 


R-19 


R-11 


R-11 


R-0 


R-0 


R-4 


4 


1,500- 1,999 


0.65 


R-26 


R-11 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.57 


R-38 


R-13 


R-11 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.47 


R-38 


R-13 


R-19 


R-7 


R-0 


R-8 


7 


3,000 - 3,499 


0.47 


R-38 


R-13 


R-19 


R-7 


R-0 


R-9 


8 


3,500 - 3,999 


0.46 


R-38 


R-13 


R-19 


R-8 


R-4, 2 ft. 


R-9 


9 


4,000 - 4,499 


0.46 


R-38 


R-13 


R-19 


R-9 


R-6, 2 ft. 


R-13 


10 


4,500 - 4,999 


0.45 


R-38 


R-13 


R-19 


R-9 


R-6, 2 ft. 


R-15 


11 


5,000 - 5,499 


0.45 


R-38 


R-13 


R-19 


R-10 


R-8, 2 ft. 


R-18 


12 


5,500 - 5,999 


0.44 


R-38 


R-13 


R-19 


R-10 


R-8, 2 ft. 


R-18 


13 


6,000 - 6,499 


0.44 


R-38 


R-19 


R-19 


R-10 


R-8, 4 ft. 


R-18 


14 


6,500 - 6,999 


0.38 


R-38 


R-19 


R-19 


R-10 


R-8, 4 ft. 


R-18 


15 


7,000 - 8,499 


0.32 


R-49 


R-21 


R-30 


R-18 


Note a 


Note a 


16 


8,500 - 8,999 


0.32 


R-49 


R-21 


R-30 


Note a 


Note a 


Note a 


17 


9,000 - 12,999 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 


Note a 



For SI: 1 foot = 304.8 mm. 
a. See Section 502.2.4.13 



34 



2003 BhSTERNATSONAL ENERGY CONSERVATION CODE** 



IRESBDEiSSTDAL — COMPONENT PERFORMANCE APPROACH 



5€i2o2o4.S Tress/rafter coiiisitriincltioinio "Ceiling /?-value" 
assumes standard truss or rafter construction. Where 
raised-heel trusses or other construction techniques are 
employed to obtain the full height of ceiling insulation 
over the exterior wall top plate, R-30 shall be permitted to 
be used where R-38 is required in the table, and R-38 
shall be permitted to be used where R-49 is required. 

5(0)2.2.4.6 Doors. Opaque doors in the building envelope 
shall have a maximum [/-factor of 0.35. One door shall 
be exempt from this requirement. 

5{Q)2o2o4.7 CenMmgs. "Ceihng i?-value" shall be required 
for flat or "cathedral" (inclined) ceilings. 

5([D2o2o4og Floors. "Floor i?-value" shall apply to floors 
over unconditioned spaces. A floor over outside air shall 
meet the requirement for "Ceiling /?-value." 

5<S)2.2A3 Basememlt walls. Basement wall insulation 
shall be installed in accordance with Section 502.2.1.6. 



16-1 



TABLE 502.2.4.16(1) 
O.C. STEEL-FRASViED WALL EQUIVALENT ^-VALUES 



Slab perimeter insulation 
shall be installed in accordance with Section 502.2.1.4. 

502.2.4.11 Heated slabs, R-2 shall be added to the "Slab 
perimeter /?- value" where the slab is heated. 

502.2.4.12 Crawl space walls, "Crawl space wall 
/?-value" shall apply to unventilated crawl spaces only. 
Crawl space insulation shall be installed in accordance 
with Section 502.2.1.5. 



502.2.4.13 Tables mot applicable. The particular cli- 
mate range indicated by Note a in Tables 502.2.4(4), 
502.2.4(6), 502.2.4(7), 502.2.4(8) and 502.2.4(9) shall 
not be used with the indicated envelope component(s) to 
demonstrate compliance under Section 502.2.4. 

502.2.4.14 Climates greater thami 13,000 HDD, These 
tables shall not be used for climates greater than or equal 
to 13,000 HDD. 



502.2.4.15 Femesttratnomi solar heat galim coefficieeL In 
locations with HDD less than 3,500, fenestration prod- 
ucts shall also meet the requirements of Section 502. 1 .5. 

502.2.4.16 Steel-fframedl wall comstractnoe. Where 
steel framing is used in wall construction, the wall assem- 
bly shall meet the equivalent wall cavity and sheathing 
/?- values in Table 502.2.4.16(1) or 502.2.4.16(2), based 
on the "on-center" (o.c.) dimension of the steel studs and 
the required /?- value for wood-framed walls determined 
in accordance with Section 502.2.4, and utiUzing any 
combination of cavity and sheathing insulation set off by 
commas in Table 502.2.4.16(1) or 502.2.4.16(2). 

502.2.4.17 Mngh-mass wall comstrinctnoini. Exterior 
walls constructed of high-mass materials having heat ca- 
pacity greater than or equal to 6 Btu/ ft^ • °F [ 1 .06 kJ/(m2 
• K)] of exterior wall area shall meet the equivalent insu- 
lation /^-values in Table 502.2.4.17(1) or 502.2.4.17(2), 
based on the placement of the insulation, the HDD of the 
building location, and the required /?-value for 
wood-framed walls determined in accordance with Sec- 
tion 502.2.4. 



WOOD-FRAMED 
WALL W-VALUE ^ 


EQOOVALENT STEEL- 
FRAMED WALL CAVITY AND SHEATHING 
ff-VALUE 


R-11 


R-O+R-9, R-ll+R-4, R-15+R-3, R-21+R-2 


R-13 


R-ll+R-5, R-15+R-4, R-21+R-3 


R-14 


R-ll+R-6, R-13+R-5, R-19+R-4 


R-15 


R-ll+R-6, R-15+R-5, R-19+R-4 


R-16 


R-ll+R-8, R-15+R-7, R-21+R-6 


R-17 


R-ll+R-9, R-13+R-8, R-19+R-7 


R-18 


R-ll+R-9, R-15+R-8, R-21+R-7 


R-19 


R-ll+R-10, R-13+R-9, R-19+R-8, R-25+R-7 


R-20 


R-ll+R-10, R-13+R-9, R-19+R-8 


R-21 


R-13+R-10, R-19+R-9, R-25+R-8 


R-22 


R-13+R-10,R-19+R-9 


R-24 


R-19+R-10,R-25+R-9 


R-25 


R-19+R-10 


R-26 


R-19+R-11,R-21+R-10 



For SI: 1 inch = 25.4 mm. 

a. As required by Section 502.2.4 and the tabular entry for "Exterior wall 
/?-value" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



TABLE 502.2.4.16(2) 
24-DNCH O.C. STEEL FRAIV3ED WALL EQUIVALENT H-VALUES 



WOOD-FRAMED 
WALL R- VALUE ^ 


EQUIVALENT STEEL- 
FRAMED WALL CAVITY AND SHEATHING 
n-VALUE 


R-11 


R-O+R-9, R-ll+R-3, R-15+R-2, R-25+R-0 


R-13 


R-ll+R-4, R-15+R-3, R-19+R-2 


R-14 


R-ll+R-5, R-13+R-4, R-15+R-3, R-21+R-2 


R-15 


R-ll+R-5, R-13+R-4, R-19+R-3, R-21+R-2 


R-16 


R-ll+R-7, R-13+R-6, R-19+R-5, R-25+R-4 


R-17 


R-ll+R-8, R-13+R-7, R-15+R-6, R-21+R-5 


R-18 


R-ll+R-8, R-13+R-7, R-19+R-6, R-25+R-5 


R-19 


R-ll+R-9, R-13+R-8, R-15+R-7, R-21+R-6 


R-20 


R-ll+R-9, R-13+R-8, R-19+R-7, R-21+R-6 


R-21 


R-ll+R-9, R-15+R-8, R-21+R-7 


R-22 


R-ll+R-10, R-13+R-9, R-19+R-8, R-21+R-7 


R-24 


R-ll+R-10, R-15+R-9, R-19+R-8 


R-25 


R-13+R-10, R-19+R-9, R-21+R-8 


R-26 


R-15+R-10, R-19+R-9, R-25+R-8 



For SI: 1 inch = 25.4 mm. 

a. As required by Section 502.2.4 and the tabular entry for "Exterior wall 
R-\alue" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



2003 DMTERMATIIOMAL ENERGY CONSERVATION CODE® 



35 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



TABLE 502.2.4.17(1) 

HIGH-MASS WALL EQUIVALENT /?-VALUES 

INSULATION PLACED ON THE EXTERIOR OF THE WALL 

OR WITH INTEGRAL INSULATION 



WOOD-FRAMED 
WALL fl-VALUE^ 


EQUIVALENT HIGH-MASS WALL ff-VALUE 


HDD 0-1,999 


HDD 2,000 - 3,999 


HDD 4,000 - 5,499 


HDD 5,500 - 6,499 


HDD 6,500 - 8,499 


HDD > 8,500 


R-11 


R-6 


R-6 


R-7 


R-8 


R-9 


R-10 


R-13 


R-6 


R-6 


R-8 


R-9 


R-10 


R-11 


R-14 


R-6 


R-7 


R-8 


R-9 


R-10 


R-11 


R-15 


R-7 


R-7 


R-8 


R-9 


R-10 


R-12 


R-16 


R-7 


R-7 


R-8 


R-9 


R-11 


R-12 


R-17 


R-7 


R-7 


R-9 


R-10 


R-11 


R-13 


R-18 


R-7 


R-7 


R-9 


R-10 


R-11 


R-13 


R-19 


R-8 


R-9 


R-10 


R-11 


R-13 


R-15 


R-20 


R-8 


R-9 


R-10 


R-11 


R-13 


R-16 


R-21 


R-8 


R-9 


R-10 


R-12 


R-14 


R-16 


R-22 


R-8 


R-9 


R-10 


R-12 


R-14 


R-17 


R-23 


R-9 


R-9 


R-11 


R-12 


R-14 


R-17 


R-24 


R-9 


R-9 


R-11 


R-12 


R-14 


R-17 


R-25 


R-9 


R-10 


R-11 


R-13 


R-15 


R-18 


R-26 


R-9 


R-10 


R-11 


R-13 


R-15 


R-18 



a. As required by Section 502.2.4 and the tabular entry for "Exterior wall /?- value" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



TABLE 502.2.4.17(2) 

HIGH-MASS WALL EQUIVALENT fT-VALUES 

INSULATION PLACED ON THE INTERIOR OF THE WALL 



WOOD-FRAMED 
WALL fl-VALUE^ 


EQUIVALENT HIGH-MASS WALL fl-VALUE 


HDD 0-1,999 


HDD 2,000 - 3,999 


HDD 4,000 - 5,499 


HDD 5,500 - 6,499 


HDD 6,500 - 8,499 


HDD > 8,500 


R-11 


R-10 


R-10 


R-11 


R-11 


R-12 


R-12 


R-13 


R-11 


R-11 


R-12 


R-12 


R-14 


R-14 


R-14 


R-12 


R-12 


R-12 


R-13 


R-15 


R-15 


R-15 


R-13 


R-13 


R-13 


R-14 


R-15 


R-15 


R-16 


R-13 


R-13 


R-13 


R-15 


R-15 


R-15 


R-17 


R-14 


R-14 


R-14 


R-15 


R-16 


R-16 


R-18 


R-15 


R-15 


R-15 


R-19 


R-16 


R-16 


R-19 


R-16 


R-16 


R-16 


R-20 


R-19 


R-19 


R-20 


R-16 


R-16 


R-16 


R-21 


R-20 


R-20 


R-21 


R-17 


R-17 


R-17 


R-21 


R-21 


R-21 


R-22 


R-17 


R-17 


R-17 


R-22 


R-21 


R-21 


R-23 


R-18 


R-18 


R-18 


R-22 


R-22 


R-22 


R-24 


R-19 


R-19 


R-19 


R-22 


R-22 


R-22 


R-25 


R-20 


R-20 


R-20 


R-22 


R-22 


R-22 


R-26 


R-21 


R-21 


R-21 


R-23 


R-23 


R-23 



a. As required by Section 502.2.4 and the tabular entry for "Exterior wall ^-value" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



36 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



mimL — C0MPOMEMT PERFOKMAMCE APFROACIKl 



502.2.4.18 Steel-framed rooff/celMmg coEstrectloE. 
When truss-type, cold-formed steel framing is used in 
roof/ceiling construction, the roof/ceiling assembly shall 
meet the equivalent insulation i?-values in Table 
502.2.4.18(1). 

When C-shaped, cold-formed steel framing is used in 
roof/ceiling construction, the steel roof/ceiling assembly 
shall meet the equivalent wood framed C/j^-factors in Ta- 
ble 502.2.4.18(2). 



TABLE 502.2.4.118(11) 
TRUSS TYPE COLD=FORiVlED STEEL ROOF/CEILJMG 



WOOD-FRAMED 
ROOF/CElLlNG 

w-value" 


TRUSS TYPE COLD-FORMED STEEL 

CAVITY AMD COWTISSSOOOS INSULATIOM 

ff-VALUE, 24 INCHES ON CENTER'' 


R-13 


R-19, R-13 + R-3 


R-19 


R-26, R-19 + R-3 


R-26 


R-38, R-26 + R-3 


R-30 


R-38, R-30 + R-3 


R-38 


R-49, R-38 + R-5 


R-49 


Not applicable 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 

a. This table applies to cold-formed, steel-truss roof framing spaced at 24 
inches on center and where the penetrations of the truss members through 
the cavity insulation do not exceed three penetrations of the truss members 
through the cavity insulation for each 4-foot length of the truss. 

b. As required by Section 502.2.4 and the tabular entry for "Ceiling 7?-value" 
shown in Tables 502.2.4(1) through 502.2.4(9). 

c. The cavity /?-value requirement is listed first, followed by the continuous 
insulation /?-value requirement. 



ramed fflooir coestriiictiom. When 
C-shaped, cold-formed steel framing is used in floor con- 
struction, the steel floor assembly shall meet the equiva- 
lent wood framed t/^factors in Table 502.2.4.19. 



placeiniieiiltSo As an alternative to demonstrating compliance 
with Section 402 or 502.2, additions with a conditioned 
floor area less than 500 square feet (46.5 m^) to existing sin- 
gle-family residential buildings and structures shall meet 
the prescriptive envelope component criteria in Table 
502.2.5 for the designated heating degree days (HDD) ap- 
plicable to the location. The {/-factor of each individual fen- 
estration product (windows, doors and skylights) shall be 
used to calculate an area-weighted average fenestration 
product fZ-factor for the addition, which shall not exceed the 
appUcable listed values in Table 502.2.5. For additions, 
other than sunroom additions, the total area of fenestration 
products shall not exceed 40 percent of the gross wall and 
roof area of the addition. The /?- values for opaque thermal 
envelope components shall be equal to or greater than the 
applicable listed values in Table 502.2.5. Replacement fen- 
estration products (where some or all of an existing fenestra- 
tion unit is replaced with an entire new replacement unit. 



including the frame, sash and glazing) shall meet the pre- 
scriptive fenestration t/-factor criteria in Table 502.2.5 for 
the designatedUDD applicable to the location. 

Conditioned sunroom additions shall maintain thermal 
isolation; shall not be used as kitchens or sleeping rooms; 
and shall be served by a separate heating or cooling system, 
or be thermostatically controlled as a separate zone of the 
existing system. 

Fenestration products used in additions and as replace- 
ment windows in accordance with this section shall also 
meet the requirements of Section 502. 1 .5 in locations with 
HDD less than 3,500. 



IMQ SiECHANiCAL SYSTESiS 
AND EQUIPMENT 

S03.1 General. This section covers mechanical systems and 
equipment used to provide heating, ventilating and air-condi- 
tioning functions. This section assumes that residential build- 
ings and dwelling units therein will be designed with individual 
HVAC systems. Where equipment not shown in Table 503.2 is 
specified, it shall meet the provisions of Sections 803.2.2 and 
803.3.2. 



efficiency. Equipment shown 
in Table 503.2 shall meet the specified minimum performance. 
Data furnished by the equipment supplier, or certified under a 
nationally recognized certification procedure, shall be used to 
satisfy these requirements. All such equipment shall be in- 
stalled in accordance with the manufacturer's instructions. 



as. HVAC systems shall meet the criteria 
set forth in Sections 503.3.1 through 503.3.3. 



503.3.1 Load cakMaMoms. Heating and cooling sys- 
tem design loads for the purpose of sizing systems and 
equipment shall be determined in accordance with the pro- 
cedures described in the ASHRAE Fundamentals Hand- 
book. Heating and cooling loads shall be adjusted to account 
for load reductions that are achieved when energy recovery 
systems are utilized in the HVAC system in accordance with 
the ASHRAE HVAC Systems and Equipment Handbook. 
Alternatively, design loads shall be determined by an ap- 
proved equivalent computation procedure, using the design 
parameters specified in Chapter 3. 



Tempera- 
ture and humidity controls shall be provided in accordance 
with Sections 503.3.2.1 through 503.3.2.4. 

5(0)3.3,2.1 System controls. Each dwelling unit shall be 
considered a zone and be provided with thermostatic 
controls responding to temperature within the dwelling 
unit. Each heating and cooling system shall include at 
least one temperature control device. 



m Replacement skylights shall have a maxi- 
mum tZ-factor of 0.60 when installed in any location | 
above 1,999 



mm mjEBWMmwkL energy conservatdoini codh 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



TABLE 502.2.4.18(2) 
C-SHAPED COLD-FORMED STEEL ROOF/CEBLSNG EQUIVALENT £/^FACTORS^ 

T 




R-ia'^ 



R-ig'^ 



0.0773 



0.0537 



0.0405 



0.0355 



0.0285 



0.0223 



2x6 



2x8 



2x 10 



2x 12 



0.1328 



0.0530 



0.0387 



0.0336 



0.0265 



0.0206 



16 inches o.c. 



0.1328 



0.0667 



0.0456 



0.1328 



0.1208 



0.0585 



0.0386 



0.0295 



0.0223 



0.0475 



0.0345 



0.0251 



0.1328 



0.1208 



0.1094 



0.1037 



0.0398 



0.0277 



0.1328 



0.1208 



0.1094 



0.1037 



0.0471 



0.0311 



2x4 



2x6 



2x8 



2x10 



2x12 



24 inches o.c. 



0.0742 



0.1129 



0.1129 



0.1129 



0.1129 



0.1129 



0.0519 



0.0390 



0.0342 



0.0510 



0.0376 



0.0610 



0.0428 



0.0994 



0.0517 



0.0994 



0.0873 



0.0994 



0.0873 



0.0327 



0.0366 



0.0429 



0.0816 



0.0816 



0.0274 



0.0215 



0.0260 



0.0284 



0.0320 



0.0357 



0.0403 



0.0202 



0.0216 



0.0237 



0.0257 



For SI: 1 inch = 25.4 mm. 

a. Linear interpolation is permitted for determining {/-factors which are between those given in the table. 

b. Applies to steel framing up to a maximum thickness of 0.064 inches (16 gage.) 

c. As required by Section 502.2.4 and the tabular entry for "Ceiling /?-value" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



0.0280 



TABLE 502.2.4.19 
C-SHAPED C0LD=F0RSV1ED STEEL FLOOR EQUSVALEMT W^ACTORS^ 





FRAMING " 


SPACING 


R-ll'^ 


R-13*= 


R-15'= 


R-19'= 


R-21° 


R-25'= 


R-30 


Steel 


WoodEquivalent 


16 inches 
o.c. 


0.0725 


0.0652 


0.0595 


0.0477 


0.0452 


0.0382 


0.0327 


2x6 


0.1058 


0.1031 


0.1005 


0.0583 


0.0523 


NA 


NA 


2x8 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0548 


NA 


2x 10 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0894 


0.0838 


2x12 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0894 


0.0838 


Steel 


-___WoodEquivalent 


24 inches 
o.c. 


0.0708 


0.0633 


0.0574 


0.0464 


0.0436 


0.0370 


0.0317 


2x6 


0.0941 


0.0907 


0.0875 


0.0538 


0.0486 


NA 


NA 


2x8 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0488 


NA 


2x10 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0745 


0.0697 


2x12 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0745 


0.0697 



For SI: 1 inch = 25.4 mm. 

NA = Not applicable. 
I a. Linear interpolation is permitted for determining (/-factors which are between those given in the table. 

b. Applies to steel framing up to a maximum thickness of 0.064 inches (16 gage.) 
|i] c. As required by Section 502.2.4 and the tabular entry for "Floor /?-value" shown in Tables 502.2.4(1) through 502.2.4(9), as applicable. 



38 



2003 SNTERNATBONAL ENERGY C0NSERVAT80N CODE** 



RESDDEMTIAL — COSWiPOMEMT PERFORMANCE APPROACH 



TABLE 502.2.5 

jCrdptive envelope CO 

i TO AMD REPLACEMENT 
5 ONE- AH 



im CRITER 
)WS FOR E) 
DWEt 



HEATllMG 
DEGREE DAYS 


IViAXliyiUWi 


Mmiiviuivi 


Fenestration 
U-factor® 


Ceiling 
R-vaiue^'® 


Waii n-value® 


Floor R-value 


Basement waii 
R-vaiue'' 


Slab perimeter 

R-vaiue and 

depth'^ 


Crawl space 

wail 

W-value'' 


0-1,999 


0.75 


R-26 


R-13 


R-11 


R-5 


R-0 


R-5 


2,000 - 3,999 


0.50 


R-30 


R-13 


R-19 


R-8 


R-5, 2 ft. 


R-10 


4,000 - 5,999 


0.40 


R-38 


R-18 


R-21 


R-10 


R-9, 2 ft. 


R-19 


6,000 - 8,499 


0.35 


R-49 


R-21 


R-21 


R-11 


R-13, 4 ft. 


R-20 


8,500-12,999 


0.35 


R-49 


R-21 


R-21 


R-19 


R-18, 4 ft. 


R-20 



For SI: 1 foot = 304.8 mm. 

a. "Ceiling /?-value" shall be required for flat or inclined (cathedral) ceilings. Floors over outside air shall meet "Ceiling /?- value" requirements. 

b. Basement wall insulation shall be installed in accordance with Section 502.2.1.6. 

c. Slab perimeter insulation shall be installed in accordance with Section 502.2. 1 .4. An additional R-2 shall be added to "Slab perimeter ^- value" in the table if 
the slab is heated. 

d. "Crawl space wall /?- value" shall apply to unventilated crawl spaces only. Crawl space insulation shall be installed in accordance with Section 502.2.1.5. 

e. Sunroom additions shall be required to have a maximum fenestration [/-factor of 0.50 in locations with 2,000 - 12,999 HDD. In locations with 0-5,999 HDD, 
the minimum ceiling /?- value shall be R-19 and the minimum wall /?- value shall be R-13. In locations with 6,000 - 12,999 HDD, the minimum ceiling /?- value 
shall be R-24 and the minimum wall 7?- value shall be R-13. 



TABLE 503.2 
lUM EQUBPMENT PERFORMANCE 



EQUIPiWENT 
CATEGORY 


SUBCATEGORY® 


REFEREiMCED STANDARD 


IVilNIIVlUiVl PERFORMANCE 


Air-cooled heat pumps. Heating mode < 65,000 Btu/h 
cooling capacity 


Split systems 
Single package 


ARI 210/240 


6.8 HSPF^" 
6.6 HSPF^" 


Gas-fired or oil-fired furnace < 225,000 Btu/h 


— 


DOE 10 CFR Part 430, 
Subpart B, Appendix N 


AFUE 78%'' 
E, 80%' 


Gas-fired or oil-fired steam and hot- water boilers 
< 300,000 Btu/h 


— 


DOE 10 CFR Part 430, 
Subpart B, Appendix N 


AFUE 80%''''' 


Air-cooled air conditioners and heat pumps, CooUng 
mode <65,000 Btu/h cooling capacity 


Split systems 
Single package 


ARI 210/240 


10.0 SEER" 
9.7 SEER" 



For SI: 1 British thermal unit per hour = 0.293 1 W. 

a. For multicapacity equipment, the minimum performance shall apply to each capacity step provided. Multicapacity refers to manufacturer-published ratings 
for more than one capacity mode allowed by the product's controls. 

b. This is used to be consistent with the National Appliance Energy Conservation Act (NAECA) of 1987 (Public Law 100-12). 

c. These requirements apply to combination units not covered by NAECA (three-phase power or cooling capacity 65,000 Btu/h). 

d. Except for gas-fired steam boilers for which the minimum AFUE shall be 75 percent. 

e. Seasonal rating. 



5([D33.2.2 Tlhermostatic comtrol capalblllties. Where 
used to control comfort heating, thermostatic controls 
shall be capable of being set locally or remotely by ad- 
justment or selection of sensors down to 55°F (13°C) or 
lower. 

Where used to control comfort coohng, thermostatic 
controls shall be capable of being set locally or remotely 
by adjustment or selection of sensors up to 85°F (29°C) 
or higher. 

Where used to control both comfort heating and cool- 
ing, thermostatic controls shall be capable of providing a 
temperature range or deadband of at least 5°F (A3°C) 



within which the supply of heating and coohng energy is 
shut off or reduced to a minimum. 



1 . Special occupancy or special usage conditions 
approved by the code official. 

2. Thermostats that require manual changeover 
between heating and cooling modes. 

5([D3o3,2o3 Heat pump amxiDnary heat. Heat pumps hav- 
ing supplementary electric resistance heaters shall have 
controls that prevent heater operation when the heating 
load is capable of being met by the heat pump. Supple- 
mental heater operation is not allowed except during out- 
door coil defrost cycles not exceeding 15 minutes. 



2003 INTERNATIONAL ENERGY CONSERVATDOBM CODE® 



39 



RESIDENTIAL — COMPONENT PERFORMANCE APPROAC641 



503.3.2.4 Humidistat. Humidistats used for comfort 
purposes shall be capable of being set to prevent the use 
of fossil fuel or electricity to reduce relative humidity be- 
low 60 percent or increase relative humidity above 30 
percent. 

503.3.3 Distribution system, construction and insula- 
tion. Distribution systems shall be constructed and insu- 
lated in accordance with Sections 503.3.3.1 through 
503.3.3.7. 

503.3.3.1 Piping insulation. All HVAC system piping 
shall be thermally insulated in accordance with Table 
503.3.3.1. 

Exceptions: 

1. Factory-installed piping within HVAC equip- 
ment tested and rated in accordance with Sec- 
tion 503.2. 

2. Piping that conveys fluids which have a design 
operating temperature range between 55 °F and 
105°F(13°Cand41°C). 

3. Piping that conveys fluids which have not been 
heated or cooled through the use of fossil fuels 
or electricity. 

503.3.3.2 Other insulation thicknesses. Insulation 
thicknesses in Table 503.3.3.1 are based on insulation 
having thermal resistivity in the range of 4.0 to 4.6 
h ■ ft2 • °F/Btu/inch (0.704 to 0.810 m^ • K/W per 25 
mm) of thickness on a flat surface at a mean temperature 
of75°F(24°C). 

Minimum insulation thickness shall be increased for 
materials having values less than 4.0, or shall be permit- 
ted to be reduced for materials having thermal resistivity 



values greater than 4.6 in accordance with Equation 
5-15. 

4.6 X Table 503.3.3.1 Thickness _.^^^ 

= Minumum 

Actual Resistivity Thickness 

(Equation 5-15) 

For materials with thermal resistivity values less than 
4.0, the minimum insulation thickness shall be permitted 
to be increased in accordance with Equation 5-16. 

New 
= Minumum 
Thickness 



4.0 X Table 503.3.3.1 Thickness 



Actual Resistivity 

(Equation 5-16) 

503.3.3.3 Duct and plenum insulation. All supply and 
return-air ducts and plenums installed as part of an 
HVAC air-distribution system shall be thermally insu- 
lated in accordance with Table 503.3.3.3, or where such 
ducts or plenums operate at static pressures greater than 2 
inches w.g. (500 Pa), in accordance with Section 
503.3.3.4.1. 

Exceptions: 

1 . Factory-installed plenums, casings or ductwork 
furnished as a part of the HVAC equipment 
tested and rated in accordance with Section 
503.2. 

2. Ducts within the conditioned space that they 
serve. 

[M] 503.3.3.4 Duct construction. Ductwork shall be 
constructed and erected in accordance with the Interna- 
tional Mechanical Code. 



TABLE 503.3.3.1 

MINIMUM PIPE INSULATION 

(tthickmess in inclies) 



PIPING SYSTEM TYPES 


FLUID 

TEMPERATURE 

RANGE, °F 


PIPE SIZES^ 


Runouts 
up to 2"'' 


r'and less 


1.25' to 2" 


2.5 " to 4 " 


5 " to 6 " 


8" and larger 


HEATING SYSTEMS 


Steam and hot water 


High pressure/temperature 


306-450 


1% 


2% 


2% 


3 


3V, 


3V, 


Medium pressure/temperature 


251-305 


IV, 


2 


2\ 


2\ 


3 


3 


Low pressure/temperature 


201-250 


1 


IV2 


IV2 


2 


2 


2 


Low temperature 


106-200 


V2 


1 


1 


IV, 


IV2 


IV, 


Steam condensate (for feed water) 


Any 


1 


1 


IV2 


2 


2 


2 


COOLING SYSTEMS 


Chilled water, refrigerant and brine 


40-55 


V2 


% 


V4 


1 


1 


1 


Below 40 


1 


1 


IV2 


iv. 


IV, 


IV2 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, °C = [(°F)-32]/1.8. 

a. For piping exposed to outdoor air, increase insulation tiiickness by 0.5 inch. 

b. Runouts not exceeding 12 feet in length to individual terminal units. 



2003 IMTERWATIONAL ENERGY CONSERVATION CODE'' 



RESIDEMTIIAL — COMPOWENT PEI3F0IRMANCE APPROACH 



TABLE 503.3.3.3 
UM DUCT DMSULATION^ 



ANNUAL HEATING DEGREE DAYS 


INSULATION R-VALUE (h • ft^ . T-VBtu*^ 


Ducts in unconditioned attics oir outside 
building 


Ducts in unconditioned basements, crawl spaces, 
garages, and other unconditioned spaces'^ 


Supply 


Return 


Supply 


Return'' 


< 1,500 


8 


4 


4 





1,500 to 3,500 


8 


4 


6 


2 


3,501 to 7,500 


8 


4 


8 


2 


> 7,500 


11 


6 


11 


2 



For SI: °C= [(°F)-32]/1.8, 1 (h-ft2-°F)/Btu= 0.176 (m2-K)AV, 1 foot= 304.5 mm. 

a. Insulation /?- values shown are for the insulation as installed and do not include film resistance. The required minimum 7?- values do not consider water vapor 
transmission and condensation. Where control of condensation is required, additional insulation, vapor retarders or both shall be provided to limit vapor trans- 
mission and condensation. For ducts that are designed to convey both heated and cooled air, duct insulation shall be as required by the most restrictive condi- 
tion. Where exterior walls are used as plenums, wall insulation shall be as required by the most restrictive condition of this section. 

b. Insulation on return ducts in basements is not required. 

c. Unconditioned spaces include ventilated crawl spaces and framed cavities in those floors, wall and ceiling assemblies which separate conditioned space from 
unconditioned space or outside air, and are uninsulated on the side facing away from the condition space. 

d. Insulation resistance measured on a horizontal plane in accordance with ASTM C 518, at a mean temperature of 75 °F. 



5(II)33.3.4ol Hngh-aimdl medl!iiim=pre§§iiire dect sys- 
tems. All ducts and plenums operating at static pres- 
sures greater than 2 inches w.g. (500 Pa) shall be 
insulated and sealed in accordance with Section 
803.2.8. Ducts operating at static pressures in excess 
of 3 inches w.g. (750 Pa) shall be leak tested in accor- 
dance with Section 803.3.6. Pressure classifications 
specific to the duct system shall be clearly indicated 
on the construction documents in accordance with the 
International Mechanical Code. 

5(1)3.33.4.2 Low-pressere dmcll; sysHems. All longi- 
tudinal and transverse joints, seams and connections 
of supply and return ducts operating at static pressures 
less than or equal to 2 inches w.g. (500 Fa) shall be se- 
curely fastened and sealed with welds, gaskets, 
mastics (adhesives), mastic-plus-embedded-fabric 
systems or tapes installed in accordance with the man- 
ufacturer's installation instructions. Pressure classifi- 
cations specific to the duct system shall be clearly 
indicated on the construction documents in accor- 
dance with the International Mechanical Code. 

Exceptnoe; Continuously welded and lock- 
ing-type longitudinal joints and seams on ducts op- 
erating at static pressures less than 2 inches w.g. 
(500 Pa) pressure classification. 

5ffl3.3.3.4.3 SealSmg reqenred. All joints, longitudinal 
and transverse seams, and connections in ductwork, 
shall be securely fastened and sealed with welds, gas- 
kets, mastics (adhesives), mastic-plus-embed- 
ded-fabric systems or tapes. Tapes and mastics used to 
seal ductwork shall be listed and labeled in accor- 
dance with UL 181 A or UL 18 IB. Duct connections 
to flanges of air distribution system equipment shall 
be sealed and mechanically fastened. Unlisted duct 
tape is not permitted as a sealant on any metal ducts. 



Each mechanical 
ventilation system (supply or exhaust, or both) shall be 
equipped with a readily accessible switch or other means 
for shutoff, or volume reduction and shutoff, when venti- 
lation is not required. Automatic or gravity dampers that 
close when the system is not operating shall be provided 
for outdoor air intakes and exhausts. 



asport eeergy. The air transport factor for 
each all-air system shall be not less than 5.5 when calcu- 
lated in accordance with Equation 5-17. Energy for 
transfer of air through heat-recovery devices shall not be 
included in determining the air transport factor. 



Air Transport Factor = 



Space SensibleHeat Removal" 
Supply + Return Fans(s) Powerlnput" 



Ion 5=17) 
a. Expressed in consistent units, either Btu/h or Watts. 

For purposes of these calculations, space sensible heat 
removal is equivalent to the maximum coincident design 
sensible cooling load of all spaces served for which the 
system provides cooling. Fan power input is the rate of 
energy delivered to the fan prime mover. 

Air and water, all-water and unitary systems employ- 
ing chilled, hot, dual-temperature or condenser wa- 
ter-transport systems to space terminals shall not require 
greater transport energy (including central and terminal 
fan power and pump power) than an equivalent all-air 
system providing the same space sensible heat removal 
and having an air transport factor of not less than 5.5. 



5CD3o3.3.7 Balamcmg. The HVAC system design shall 
provide means for balancing air and water systems. Bal- 
ancing mechanisms shall include, but not be limited to, 
dampers, temperature and pressure test connections, and 
balancing valves. 



2003 DIMITERMATIOINIAL EBSSERGY COMSERVATIOW CODI 



41 



RESIDENTIAL — COMPONENT PERFORMANCE APPROACH 



SECTION 504 
SERVICE WATER HEATING 

504.1 Scope. The purpose of this section is to provide criteria 
for design and equipment selection that will produce energy 
savings when applied to service water heating. Water supplies 
to ice-making machines and refrigerators shall be taken from a 
cold-water line of the water distribution system. 

504.2 Water heaters, storage tanks and boilers. Water heat- 
ers, storage tanks and boilers shall meet the performance crite- 
ria set forth in Sections 504.2.1 and 504.2.2. 



504,2.1 Performance efficiency. Water heaters and hot wa- 
ter storage tanks shall meet the minimum performance of 
water-heating equipment specified in Table 504.2. 1 . Where 
multiple criteria are listed, all criteria shall be met. 

Exception: Storage water heaters and hot water storage 
tanks having more than 140 gallons (530 L) of storage ca- 
pacity need not meet the standby loss (SL) or heat loss 
(HL) requirements of Table 504.2. 1 if the tank surface 
area is thermally insulated to R-12.5 and if a standing pi- 
lot hght is not used. 



TABLE 504.2.1 
MINIMUM PERFORMANCE OF WATER°HEATiNQ EQUIPMENT 



CATEGORY 


TYPE 


FUEL 


INPUT 
RATING 


(gallons) 


INPUT TO Vt 

RATIO 

(Btuh/gal) 


TEST 
iWETHOD 


ENERGY 

factor" 


THERMAL 
EFFICIENCY 

(percent) 


STANDBY 

LOSS 

(percent/hour)^ 


NAECA-covered 

water-heating 

equipmenf^ 


All 


Electric 


<12kW 


AlP 


— 


Notef 


>0.93-0.00132V* 


— 


— 


Storage 


Gas 


< 75,000 Btu/h 


AlP 


— 


Notef 


> 0.62-0.001 9 K* 


— 


— 


Instantaneous 


Gas 


< 200,000 Btu/h^ 


All 


— 


Notef 


> 0.62-0.00 19 V* 


— 


— 


Storage 


Oil 


< 105,000 Btu/h 


All 


— 


Notef 


>0.59-0.0019V* 


— 


— 


Instantaneous 


Oil 


< 210,000 Btu/h 


All 


— 


Notef 


> 0.59-0.0019V* 


— 


— 


Pool heater 


Gas/oil 


All 


All 


— 


Noteg 


— 


>78% 


— 


Other 

water-heating 

equipment'' 


Storage 


Electric 


All 


all 


— 


Notch 


— 


— 


< 0.30+27/V/ 


Storage/ 
instantaneous 


Gas/oil 


< 155,000 Btu/h 
> 155,000 Btu/h 


All 


< 4,000 


Noteh 


— 


>78% 


< 1.3-1-1 14/ V 


All 


< 4,000 


Noteh 


— 


>78% 


< 1. 3-^95/ V 


<10 
>10 


> 4,000 

> 4,000 


Noteh 


— 


>80% 


< 2.3+67/V/ 


Unfired 
storage tanks 


— 


— 


— 


All 


— 


— 


— 


— 


< 6.5 Btuh/ft^ '* 



For SI: 1 British thermal unit per square foot = 3.155 W/m^ 1 British thermal unit per hour = 0.2931 W, 1 gallon = 3.785 L, °C = [(°F)-32]/1.8. 

a. Vj- is the storage volume in gallons as measured during the standby loss test. For the purpose of estimating the standby loss requirement using the rated volume 
shown on the rating plate, Vj should be no less than 0.95 V for gas and oil water heaters and no less than 0.90 V for electric water heaters. 

b. V is rated storage volume in gallons as specified by the manufacturer. 

c. Consistent with National Appliance Energy Conservation Act (NAECA) of 1987. 

d. All except those water heaters covered by NAECA. 

e. DOE CFR 10; Part 430, Subpart B, Appendix E applies to electric and gas storage water heaters with rated volumes 20 gallons and gas instantaneous water 
heaters with input ratings of 50,000 to 200,000 Btu/h. 

f. DOE CFR 10; Part 430, Subpart B, Appendix E. 

g. ANSIZ21.56. 

h. ANSI Z21.10.3. When testing an electric storage water heater for standby loss using the test procedure of Section 2.9 of ANSI Z21.10.3, the electrical supply 
voltage shall be maintained within ± 1 percent of the center of the voltage range specified on the water heater nameplate. Also, when needed for calculations, 
the thermal efficiency (£,) shall be 98 percent. When testing an oil water heater using the test procedures of Sections 2.8 and 2.9 of ANSI Z21. 10.3, the follow- 
ing modifications will be made: A vertical length of the flue pipe shall be connected to the flue gas outlet of sufficient height to establish the minimum draft 
specified in the manufacturer's installation instructions. All measurements of oil consumption will be taken by instruments with an accuracy of ± 1 percent or 
better. The burner shall be adjusted to achieve an hourly Btu input rate within ± 2 percent of the manufacturer's specified input rate with the COj reading as 
specified by the manufacturer with smoke no greater than 1 and the fuel pump pressure within ± 1 percent of the manufacturer's specification. 

i. Heat loss of tank surface area (Btu/h • ft^) based on 80°F water-air temperature difference. 

^Minimum efficiencies marked with an asterisk are established by preemptive federal law and are printed for the convenience of the user. 



42 



2003 SWTERNATIONAL ENERGY CONSERVATION CODE"^ 



RESDDENTIAL — COMPONESMT PERFOlRIMlAliSSCE APPROACIKI 



L22 Gombnmaltnoim service water-lhealtDinig/space-Iheat- 



mg tooilers. Service water-heating equipment shall not be 
dependent on year-round operation of space-heating boil- 
ers; that is, boilers that have as another function winter space 
heating. 

Exceptnoms: 

1 . Systems with service/space-heating boilers having 
a standby loss (Btu/h) (W) less than that calculated 
in equation 5-18: 

(13.3 • pmd) + 400 

n 

(EquinaltioE S-18) 

as determined by the fixture count method where: 

pmd = Probable maximum demand in 

gallons/hour as determined in accordance 
with the ASHRAE HVAC Applications 
Handbook. 

n = Fraction of year when outdoor daily 

mean temperature exceeds 64.9°F (18°C). 

The standby loss is to be determined for a test pe- 
riod of 24-hour duration while maintaining a boiler 
water temperature of 90°F (32°C) above an ambi- 
ent of 60 to 90°F (16 to 32°C) and a 5-foot (1524 
mm) stack on appliance. 

2. For systems where the use of a single heating unit 
will lead to energy savings, such unit shall be uti- 
lized. 



504.3 Swnmmmg poolSo Swimming pools shall be provided 
with energy-conserving measures in accordance with Sections 
504.3.1 through 504.3.3. 

5M3A Om-olFf switclio All pool heaters shall be equipped 
with an ON-OFF switch mounted for easy access to allow 
shutting off the operation of the heater without adjusting the 
thermostat setting and to allow restarting without relighting 
the pilot light. 



covers. Heated swimming pools shall be 
equipped with a pool cover. 

Excepttloms Outdoor pools deriving more than 20 percent 
of the energy for heating from renewable sources (com- 
puted over an operating season) are exempt from this re- 
quirement. 

5(ID4.3o3 Time clockSo Time clocks shall be installed so that 
the pump can be set to run in the off-peak electric demand 
period and can be set for the minimum time necessary to 
maintain the water in a clear and sanitary condition in keep- 
ing with applicable health standards. 

S04o4 Mot water system coetrols. Automatic-circulating hot 
water system pumps or heat trace shall be arranged to be conve- 
niently turned off, automatically or manually, when the hot wa- 
ter system is not in operation. 

I BMS Pipe iesiuilattoini. For automatic-circulating hot water 
systems, piping heat loss shall be limited to a maximum of 17.5 
Btu/h per linear foot (16.8 W/m) of pipe in accordance with Ta- 
ble 504.5, which is based on design external temperature no 

ID lower than 65°F ( 1 8°C) . For external design temperatures lower 



than 65 °F (1 8 °C) insulation thickness must be calculated in ac- 
cordance with Section 503.3.3.2. 

Exceptiomi; Piping insulation is not required when the heat 
loss of the piping, without insulation, does not increase the 
annual energy requirements of the building. 

TABLE 504.5 
IMIINDR/JUM PIIPE DB 
in 



SERVICE WATER- 
HEATING 
TEMPERATURES 
(°F) 


PIPE SIZES^ 


Noncirculating 
runouts 


Circulating mains and runouts 


Upto1" 


Up to 11 .25" 


1.5" to 2" 


Over 2" 


170-180 


V, 


1 


1% 


2 


140-169 


'/, 


% 


1 


1'/, 


100-139 


•/^ 


'h 


■/. 


1 



For SI: 1 inch = 25.4 mm, °C = [(°F)-32]/1.8, 

1 Btuh/inch • ft^ • °F = 0.144 W/(m • K). 

a. Nominal iron pipe size and insulation thickness. Conductivity, k = 0.27. 

5(I])4o6 Comservatiom off Ihot water» Hot water shall be con- 
served in accordance with Section 504.6. 1 . 

5MMA Showers. Shower heads shall have a maximum 
flow rate of 2.5 gallons per minute (gpm) (0.158 L/s) at a 
pressure of 80 pounds per square inch (psi) (55 1 kPa) when 
tested in accordance with ASME A112.18.1. 



504.7 Heat traps. Water heaters with vertical pipe risers shall 
have a heat trap on both the inlet and outlet of the water heater 
unless the water heater has an integral heat trap or is part of a 
circulating system. 



SECTION 505 
ELEOTRDCAL POWER AND UGfr=aTIMG 

505.1 EDectrical emergy comsomptiom. In residential build- 
ings having individual dwelling units, provisions shall be made 
to determine the electrical energy consumed by each tenant by 
separately metering individual dwelling units. 

505.2 Lnghtimg power Ibindget, The lighting system shall meet 
the appUcable provisions of Section 805. 

Exceptioms Detached one- and two- family dweUings and 
townhouses and the dwelling portion of Group R-2 and R-4 
residential buildings. 



2003 DWTEeWATSONAL EMEIRGY CONSERVATDOM CODE® 



2003 SNTERNATIONAL ENERGY CONSERVATION CODE® 



CHAPTER 6 



lU! 



and indicate in 1 -inch-high (25 mm) numbers the installed 
thickness of the insulation. 



.1 Scope. This chapter sets forth energy-efficiency-related 
requirements for the design and construction of detached one- 
and two-family dwellings and Group R-2, R-4 or townhouse 
residential buildings. 



mt Portions of the building envelope that do not en- 
close conditioned space. 

601<,2 Compliaeceo Compliance shall be demonstrated in ac- 
cordance with Section 601.2.1 or 601.2.2. 



601o2ol MesMemltnal touIMiegs, 

family dwellimgSo Compliance for detached one- and 

two-family dwellings shall be demonstrated by either: 

1 . Meeting the requirements of this chapter for buildings 
with a glazing area that does not exceed 15 percent of 
the gross area of exterior walls; or 

2. Meeting the requirements of Chapter 4, or Chapter 5 
for detached one- and two-family dwellings. 

6®lo2o2 ResMemitial binnldnmgs. Groups M=2, ]R=4 or towe- 



jSo Compliance for Group R-2, R-4 or townhouse resi- 
dential buildings shall be demonstrated by either: 

1 . Meeting the requirements of this chapter for buildings 
with a glazing area that does not exceed 25 percent of 
the gross area of exterior walls; or 

2. Meeting the requirements of Chapter 4, or Chapter 5 
for Group R-2, R-4 or townhouse residential build- 
ings. 

601.3 Malernals annd eqrapinniemt;. Materials and equipment 
shall be identified in a manner that will allow a determination of 
their compliance with the applicable provisions of this chapter. 
Materials and equipment used to conform to the applicable pro- 
visions of this chapter shall be installed in accordance with the 
manufacturer's installation instructions. 



.3.1 Emselatnom. The thermal resistance (/?-value) shall 
be indicated on all insulation and the insulation installed 
such that the /?- value can be verified during inspection, or a 
certification of the installed i?- value shall be provided at the 
job site by the insulation installer. Where blown-in or 
sprayed insulation is applied in walls, the installer shall pro- 
vide a certification of the installed density and /?-value. 
Where blown-in or sprayed insulation is applied in the 
roof/ceiling assembly, the installer shall provide a certifica- 
tion of the initial installed thickness, settled thickness, cov- 
erage area, and number of bags of insulating material 
installed. Markers shall be provided for every 300 square 
feet (28 m^) of area, attached to the trusses, rafters or joists. 



, The fZ-factor of fenestration shall be 
determined in accordance with NFRC 100 by an accredited, 
independent laboratory, and labeled and certified by the 
manufacturer. The solar heat gain coefficient (SHGC) of 
fenestration shall be determined in accordance with NFRC 
200 by an accredited, independent laboratory, and labeled 
and certified by the manufacturer. 

6(01.3.2.1 Deffault femestratnom performanice. Where a 
manufacturer has not determined a fenestration prod- 
uct's t/-factor in accordance with NFRC 100, compli- 
ance shall be determined by assigning such products a 
default f/-factor from Tables 102.5.2(1) and 102.5.2(2). 
When a manufacturer has not determined a fenestration 
product's SHGC in accordance with NFRC 200, compU- 
ance shall be determined by assigning such products a 
default SHGC from Table 102.5.2(3). 



.3.2.2 Anr leakage. The air leakage of prefabricated 
fenestration shall be determined in accordance with 
AAMA/WDMA 101/I.S.2 or NFRC 400 by an accred- 
ited, independent laboratory, and labeled and certified by 
the manufacturer and shall not exceed the values in Table 
502.1.4.1. Alternatively, the manufacturer shall certify 
that the fenestration is installed in accordance with Sec- 
tion 502. 1.4. 



, Where mechanical or plumbing sys- 
tem components require preventive maintenance for effi- 
cient operation, regular maintenance requirements shall be 
clearly stated and affixed to the component, or the source for 
such information shall be shown on a label attached to the 
component. 

SECTION 802 
ByiLDING ENVELOPE 

602.1 Thermal perfformamce criteria. The minimum required 
insulation /?- value or the area-weighted average maximum re- 
quired fenestration (/-factor (other than opaque doors which 
are governed by Secfion 602. 1 .3) for each element in the build- 
ing thermal envelope (fenestration, roof/ceiling, opaque wall, 
floor, slab edge, crawl space wall and basement wall) shall be in 
accordance with the criteria in Table 602. 1 . 

The building envelope requirements of Chapter 4 or 5 shall 
be used to determine compliance with detached one- and 
two-family dwellings with greater than 15-percent glazing 
area; Group R-2, R-4 or townhouse residential buildings with 
greater than 25-percent glazing area; and any residential build- 
ing in climates with heating degree days (HDD) equal to or 
greater than 13,000. 



2003 DNTERNAT10MAL ENERGY CONSERVATD0N CODE'^ 



45 



SSMPUFIED PRESCRIPTIVE REQUIREMENTS 



TABLE 602.1 

SIWIPLIFIED PRESCRIPTIVE BUILDING ENVELOPE THERIViAL COSVIPONENT CRITERIA 

MINIMUM REQUIRED THERMAL PERFORMANCE (£/°FACTOR AND f? -VALUE) 



CLIMATE 
ZONE 


HEATING 
DEGREE DAYS 


MAXIMUM 


MINIMUM 


Glazing 
y-factor 


Celling 
R-vaiue 


Wall 
fi'-value 


Floor 
/?-value 


Basement wall 
R-value 


Slab perimeter 

ff-value and 

depth 


Crawl space 

wall 

fl-value 


1 


0-499 


Any 


R-13 


R-11 


R-U 


R-0 


R-0 


R-0 


2 


500 - 999 


0.90 


R-19 


R-11 


R-11 


R-0 


R-0 


R-4 


3 


1,000 - 1,499 


0.75 


R-19 


R-U 


R-11 


R-0 


R-0 


R-5 


4 


1,500-1,999 


0.75 


R-26 


R-13 


R-11 


R-5 


R-0 


R-5 


5 


2,000 - 2,499 


0.65 


R-30 


R-13 


R-11 


R-5 


R-0 


R-6 


6 


2,500 - 2,999 


0.60 


R-30 


R-13 


R-19 


R-6 


R-4, 2 ft. 


R-7 


7 


3,000 - 3,499 


0.55 


R-30 


R-13 


R-19 


R-7 


R-4, 2 ft. 


R-8 


8 


3,500 - 3,999 


0.50 


R-30 


R-13 


R-19 


R-8 


R-5, 2 ft. 


R-10 


9 


4,000 - 4,499 


0.45 


R-38 


R-13 


R-19 


R-8 


R-5, 2 ft. 


R-11 


10 


4,500 - 4,999 


0.45 


R-38 


R-16 


R-19 


R-9 


R-6, 2 ft. 


R-17 


11 


5,000 - 5,499 


0.45 


R-38 


R-18 


R-19 


R-9 


R-6, 2 ft. 


R-17 


12 


5,500 - 5,999 


0.40 


R-38 


R-18 


R-21 


R-10 


R-9, 4 ft. 


R-19 


13 


6,000 - 6,499 


0.35 


R-38 


R-18 


R-21 


R-10 


R-9, 4 ft. 


R-20 


14 


6,500 - 6,999 


0.35 


R-49 


R-21 


R-21 


R-11 


R-11, 4 ft. 


R-20 


15 


7,000 - 8,499 


0.35 


R-49 


R-21 


R-21 


R-11 


R-13, 4 ft. 


R-20 


16 


8,500 - 8,999 


0.35 


R-49 


R-21 


R-21 


R-18 


R-14,4ft. 


R-20 


17 


9,000 - 12,999 


0.35 


R-49 


R-21 


R-21 


R-19 


R-18, 4 ft. 


R-20 



For SI: 1 foot = 304.8 mm. 



602.1.1 Exterior walls. The sum of the /^-values of the insu- 
lation materials installed in framing cavities and insulating 
sheathing (where used) shall meet or exceed the minimum 
required "Wall /?-value" in Table 602.1. Framing, drywall, 
structural sheathing or exterior siding materials shall not be 
considered as contributing, in any way, to the thermal per- 
formance of exterior walls. Insulation separated from the 
conditioned space by a vented space shall not be counted to- 
wards the required /?- value. 

602.1.1.1 Mass walls. Mass walls shall be permitted to 
meet the criteria in Table 602. 1.1.1(1) based on the insu- 
lation position and the climate zone where the building is 
located. Other mass walls shall meet the frame wall crite- 
ria for the building type and the climate zone where the 
building is located, based on the sum of interior and exte- 
rior insulation. Walls with "exterior insulation" position 
have the entire effective mass layer interior to an insula- 
tion layer. Walls with "integral insulation" position have 
either insulation and mass materials well mixed as in 
wood (logs); or substantially equal amounts of mass ma- 
terial on the interior and exterior of insulation as in con- 
crete masonry units with insulated cores or masonry 
cavity walls. Walls with interior insulation position have 
the mass material located exterior to the insulating mate- 
rials). Walls not meeting the above descriptions for exte- 
rior or integral positions shall meet the requirements for 



"other mass walls" in Table 602. 1.1.1(1). The ^-value of 
the mass assembly for typical masonry construction shall 
be taken from Table 602.1.1.1(2). The mass assembly 
/?-value for a solid concrete wall with a thickness of 4 
inches (102 mm) or greater is R- 1.1. /?- values for other 
assemblies are permitted to be based on the hot box tests 
referenced in ASTM C 236 or ASTM C 976, two-dimen- 
sional calculations or isothermal plane calculations. 

602.1.1.2 Steel-frame walls. The minimum required 
/^-values for steel-frame walls shall be in accordance 
with Table 602.1.1.2. 



TABLE 602.1.1.2 

STEEL-FRAME WALL MINIMUM 
PERFORMANCE REQUIREMENTS (R-VALUE) 



HDD 


EQUIVALENT STEEL-FRAME WALL 
CAVITY AND SHEATHING R-VALUE^ 


0-1,999 


R-1 1 + R-5, R-15 + R-4, R-21 -i- R-3 


2,000 - 3,999 


R-11 + R-5, R-15 -1- R-4, R-21 + R-3 


4,000 - 5,999 


R-1 1 + R-9, R-15 -1- R-8, R-21 -i- R-7 


6,000 - 8,499 


R-13 + R-10, R-19 + R-9, R-25 + R-8 


8,500 - 12,999 


R-13 + R-10, R-19 + R-9, R-25 + R-8 



a. The cavity insulation /?-value requirement is listed first, followed by the 
sheathing ^-value requirement. 



46 



2003 DNTERNATBONAL ENERGY CONSERVATION CODE** 



SDMPUFIED PRESCeiPTDVE REQUSREIVIENTS 



meLES02.i.i.ia) 

MASS WALL PRESCRBPTDVE BUDLDSNG ENVELOPE REQUBREMEMTS 


MASS WALL ASSEMBLY R-VALUE" 


Building 


Location 


Exterior or Integral Insulation 


Other Mass Walls 


Zone 


Heating Degree Days 


Residential Buildings 


Residential Buildings 


1 


0-499 


R-3.8 


R-9.7 


2 


500 - 999 


R-4.8 


R-9.7 


3 


1,000-1,499 


R-4.8 


R-9.7 


4 


1,500-1,999 


R-8.1 


R-10.8 


5 


2,000 - 2,499 


R-8.9 


R-10.8 


6 


2,500 - 2,999 


R-8.9 


R-10.8 


7 


3,000 - 3,499 


R-8.9 


R-10.8 


8 


3,500 - 3,999 


R-8.9 


R-10.8 


9 


4,000 - 4,499 


R-8.9 


R-10.9 


10 


4,500 - 4,999 


R-10.4 


R-12.3 


11 


5,000 - 5,499 


R-11.9 


R-15.2 


12 


5,500 - 5,999 


R-11.9 


R-15.2 


13 


6,000 - 6,499 


R-11.9 


R-15.2 


14 


6,500 - 6,999 


R-15.5 


R-18.4 


15 


7,000 - 8,499 


R-15.5 


R-18.4 


16 


8,500 - 8,999 


R-18.4 


R-18.4 


17 


9,000 - 12,999 


R-18.4 


R-18.4 



a. The sum of the value in Table 602.1.1.1(2) and additional insulation layers. 



TABLE SOS 



.1(2) 



ASSEIMBLY TYPE 


UiMGROOTED CELLS, 
NOT INSULATED 


UNGROUTED CELLS INSULATED 


No grout 


Vertical cells grouted at 

10' o.c. or greater 


Vertical cells grouted at 
less than 10' o.c. 


6" Lightweight concrete block 


2.3 


5.0 


4.5 


3.8 


6" Medium-weight concrete block 


2.1 


4.2 


3.8 


3.2 


6" Normal-weight concrete block 


1.9 


3.3 


3.1 


2.7 


8" Lightweight concrete block 


2.6 


6.7 


5.9 


4.8 


8" Medium-weight concrete block 


2.3 


5.3 


4.8 


4.0 


8" Normal-weight concrete block 


2.1 


4.2 


3.8 


3.3 


12" Lightweight concrete block 


2.9 


9.1 


7.9 


6.3 


12" Medium- weight concrete block 


2.6 


7.1 


6.4 


5.2 


12" Normal-weight concrete block 


2.3 


5.6 


5.1 


4.3 


Brick cavity wall 


3.7 


6.7 


6.2 


5.4 


Hollow clay brick 


2.0 


2.7 


2.6 


2.4 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 



M03 DSMTERNATIOEVIAL ENERGY COMSERWAUOW CODE 



SIMPLIFIED PRESCRIPTIVE REQUIREMENTS 



602.1.2 Ceilings. The required "Ceiling /?-value" in Table 
602.1 assumes standard truss or rafter construction, and 
shall apply to all roof/ceiling portions of the building ther- 
mal envelope, including cathedral ceilings. Where the con- 
struction technique allows the required /?- value of ceiUng 
insulation to be obtained over the exterior wall top plate, 
R-30 shall be permitted to be used where R-38 is required in 
the table, and R-38 shall be permitted to be used where R-49 
is required. 

602.1,2.1 Steel-framed ceiling. The maximum required 
(//j-factor for cold-formed steel truss roof/ceiling assem- 
blies shall be in accordance with Table 602.1.2.1(1) and 
comphance shall be determined by using the U^-factOTS 
in Table 602.1.2.1(2). This table applies to cold-formed 
steel truss roof framing spaced at 24 inches (609 mm) on 
center and where the penetrations of the truss members 
through the cavity insulation do not exceed three pene- 
trations for each 4-foot (1220 mm) length of the truss. 
The maximum required t/^j-factor for C-shaped 
cold-formed steel roof/ceiling assembUes shall be in ac- 
cordance with Table 602.1.2.1(3) and comphance shall 
be determined by using the [//^-factors in Table 
602.1.2.1(4). 



TABLE 602.1.2.1(1) 

MAXIMUM COLD-FORMED STEEL ROOF/CEILING TRUSS 

i/„-FACTORS 



TABLE 602.1 .2.1 (2) 
COLD-FORMED STEEL ROOF/CEILSNG TRUSS i;„-FACTORS 



CAVITY 
INSULATION 

R-VALUE 


1 
CONTINUOUS INSULATION BETWEEN DRYWALL 
AND BOTTOIVi CHORD 


R-0 


R-3 


R-5 


R-13 


0.0865 


0.0616 


0.0546 


R-19 


0.0597 


0.0467 


0.0426 


R-26 


0.0439 


0.0364 


0.0338 


R-30 


0.0382 


0.0324 


0.0303 


R-38 


0.0302 


0.0265 


0.0251 


R-49 


0.0235 


0.0212 


0.0203 



TABLE 602.1 .2.1 (3) 

flAXSMUtW C-SHAPED, COLD-FORMED STEEL ROOF/CEILING 

£/„ FACTORS 





HEATING DEGREE DAYS 


4/fl-FACTOR 




0-499 


0.0742 




500- 1,499 


0.0504 




1,500- 1,999 


0.0372 


2,000 - 3,999 


0.0323 


4,000 - 6,499 


0.0257 


6,500 - 12,999 


0.0200 



HEATING 
DEGREE DAYS 


l/„-FACTOR 


ISinclieso.c. 


24 inches o.c. 


0-499 


0.0773 


0.0742 


500-1,499 


0.0537 


0.0519 


1,500-1,999 


0.0405 


0.0390 


2,000 - 3,999 


0.0355 


0.0342 


4,000 - 6,499 


0.0285 


0.0274 


6,500 - 12,999 


0.0223 


0.0215 



For SI: 1 inch = 25.4 mm. 



TABLE 602.1.2.1(4) 
C-SHAPED, COLD-FORMED STEEL ROOF/CEILING £i„-FACTORS^ 



FRAMING'' 


SPACING 


R-13 


R-19 


R-26 


R-30 


R-38 


R-49 


2x4 


16 inches o.c. 


0.1328 


0.0530 


0.0387 


0.0336 


0.0265 


0.0206 


2x6 


0.1328 


0.0667 


0.0456 


0.0386 


0.0295 


0.0223 


2x8 


0.1328 


0.1208 


0.0585 


0.0475 


0.0345 


0.0251 


2x10 


0.1328 


0.1208 


0.1094 


0.1037 


0.0398 


0.0277 


2x12 


0.1328 


0.1208 


0.1094 


0.1037 


0.0471 


0.0311 


2x4 


24 inches o.c. 


0.1129 


0.0510 


0.0376 


0.0327 


0.0260 


0.0202 


2x6 


0.1129 


0.0610 


0.0428 


0.0366 


0.0284 


0.0216 


2x8 


0.1129 


0.0994 


0.0517 


0.0429 


0.0320 


0.0237 


2x10 


0.1129 


0.0994 


0.0873 


0.0816 


0.0357 


0.0257 


2x12 


0.1129 


0.0994 


0.0873 


0.0816 


0.0403 


0.0280 



For SI: 1 inch = 25.4 mm. 

a. Linear interpolation is permitted for determining t/-factors which are between those given in the table. 
I b. Applies to steel framing up to a maximum thickness of 0.064 inches (16 gage.) 



2003 1NTERNAT50NAL ENERGY COMSERVATSON CODE^ 



SIMPLIFIED PRESCRJPTDVE REQUIREMENTS 



6(D)2.1o3 Opaque doors. Opaque doors in the building enve- 
lope shall have a maximum C/-factor of 0.35. One opaque 
door shall be exempt from this t/-factor requirement. 

mi J A Floor, The required /?- value in Table 602. 1 shall ap- 
ply to all floors. 

Excepltiom; Any individual floor assembly with more 
than 25 percent of its conditioned floor area exposed di- 
rectly to outside air shall meet the /?- value requirement in 
Table 602.1 for "CeiUng /?- value." 



6([I)2olo4ol §1teel=fraiinniedl IFloors. The maximum required 
[/y-factor for C-shaped, cold-formed, steel-framed floors 
shall be in accordance with Table 602.1.4.1(1) and com- 
pliance shall be determined by using the f/y-factors in Ta- 
ble 602.1.4.1(2). 



TABLE 602.11 .4.1(11) 
C-SHAPED, COLD-FORMED STEEL FLOOR 



HEATING 
DEGREE DAYS 


U^ACTOR 


16 inches o.c. 


24 inches o.c. 


- 2,499 


0.0725 


0.0708 


2,500 - 5,499 


0.0477 


0.0464 


5,500 - 12,999 


0.0452 


0.0436 



For SI: 1 inch = 25.4 mm. 



6(D2,lo5 Basememt walls. Where the basement is considered 
a conditioned space, the basement walls shall be insulated in 
accordance with Table 602.1. Where the basement is not 
considered a conditioned space, either the basement wall or 
the ceiling(s) separating the basement from conditioned 
space shall be insulated in accordance with Table 602.1. 
Where basement walls are required to be insulated, the re- 
quired /?- value shall be applied from the top of the basement 
wall to a depth of 10 feet (3048 mm) below grade or to the 
top of the basement floor, whichever is less. 

6(D)2olo6 Slalb=OE=grade lfiloor§« For slabs with a top edge 12 
inches (305 mm) or less below finished grade, the required 
"Slab perimeter /?- value and depth" in Table 602. 1 shall be 
applied to the outside of the foundation or the inside of the 



foundation wall. The insulation shall extend downward 
from the top of the slab or downward from the top of the slab 
to the bottom of the slab and then horizontally to the interior 
or exterior, until the distance listed in Table 602.1 is 
reached. 

Where installed between the exterior wall and the edge of 
the interior slab, the top edge of the insulation shall be per- 
mitted to be cut at a 45-degree (0.79 rad) angle away from 
the exterior wall. Insulation extending horizontally outside 
of the foundation shall be protected by pavement or by a 
minimum of 10 inches (254 mm) of soil. 

In locations of 500 HDD or greater, R-2 shall be added to 
the "Slab perimeter /?- value" in Table 602.1 where uninsu- 
lated hot water pipes, air distribution ducts or electric heat- 
ing cables are installed within or under the slab. 

Exceptiom: Slab perimeter insulation is not required for 
unheated slabs in areas of very heavy termite infestation 
probability as shown in Figure 502.2(7). Where this ex- 
ception is used, building envelope compUance shall be 
demonstrated by using Section 502.2.2 or Chapter 4 with 
the actual "Slab perimeter R-va\ue and depth" in Table 
602.1, or by using Section 502.2.4. 

miAJ Crawl space walls. Where the floor above the crawl 
space is uninsulated, insulation shall be installed on crawl 
space walls when the crawl space is not vented to outside air. 
The required "Crawl space wall i?- value" in Table 602.1 
shall be applied inside of the crawl space wall, downward 
from the sill plate to the exterior finished grade level and 
then vertically or horizontally or both for 24 inches (610 
mm). The exposed earth in all crawl space foundations shall 
be covered with a continuous vapor retarder having a maxi- 
mum permeance rating of 1 .0 perm (5.7-10"" kg/Pa • s • m^), 
when tested in accordance with ASTM E 96. 

6(0)2,1.8 Masomry veeeer. For exterior foundation insula- 
tion, the horizontal portion of the foundation which sup- 
ports a masonry veneer is not required to be insulated. 

mi A3 Protecttiom, Exposed insulating materials applied to 
the exterior of foundation walls shall have a rigid, opaque 
and weather-resistant protective covering. The protective 



TABLE 602.1.4.1(2) 
C=SHAPED, COLD-FORMED STEEL FLOOR W/-FACTORS= 








FRAIWONG " 


SPACING 


R-11 


R-13 


R-15 


R-19 


R-21 


e-25 


R-30 


2x6 


16 inches o.c. 


0.1058 


0.1031 


0.1005 


0.0583 


0.0523 


NA 


NA 


2x8 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0548 


NA 


2x10 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0894 


0.0838 


2x 12 


0.1058 


0.1031 


0.1005 


0.0957 


0.0935 


0.0894 


0.0838 


2x6 


24 inches o.c. 


0.0941 


0.0907 


0.0875 


0.0538 


0.0486 


NA 


NA 


2x8 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0488 


NA 


2x10 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0745 


0.0697 


2x12 


0.0941 


0.0907 


0.0875 


0.0818 


0.0792 


0.0745 


0.0697 



For SI; 1 inch - 25.4 mm. 
NA = Not applicable 

a. Linear interpolation is permitted for determining [/-factors which are between those given in the table. 

b. Applies to steel framing up to a maximum thickness of 0.064 inches (16 gage). 



2003 IWTERMATJONAL ENERGY COMSERVATDON COD! 



SIMPLIFIED PRESCRIPTIVE REQUIREMENTS 



covering shall extend 6 inches (152 mm) below finished to determine the electrical energy consumed by each tenant by 
grade level. separately metering individual dwelling units. 

602.1.10 Caulking, sealants and gasketing. All joints, 
seams, penetrations (site-built windows, doors and sky- 
lights), openings between window and door assemblies and 
their respective jambs and framing, and other sources of air 
leakage (infiltration and exfiltration) through the building 
envelope shall be caulked, gasketed, weatherstripped, 
wrapped or otherwise sealed to limit uncontrolled air move- 
ment. 

602.1.11 Moisture control. Provisions for moisture con- 
trol shall be in accordance with Section 502. 1.1. 

602.1.12 Recessed liglnting fixtures. Where provided, re- 
cessed lighting fixtures shall be installed in accordance with 
Section 502.1.3. 

602.2 Maximum solar heat gain coefficient for fenestration 

products. In locations with hearing degree days (HDD) less 
than 3,500, the area- weighted-average solar heat gain coeffi- 
cient (SHGC) for glazed fenestration installed in the building 
envelope shall not exceed 0.40. 

602.3 Fenestration exemption. Up to 1 percent of the total 
glazing area shall be exempt from the "Glazing [/-factor" re- 
quirement in Table 602.1. 

602.4 Replacement fenestration. Where some or all of an ex- 
isting fenestration unit is replaced with an entirely new replace- 
ment fenestration product, including frame, sash and glazed 
portion, the replacement fenestration product shall have a 
[/-factor that does not exceed the "Fenestrarion [/-factor" re- 
quirement in Table 502.2.5 applicable to the chmate zone 
(HDD) where the building is located. The replacement fenes- 
tration product(s) must also satisfy the air leakage require- 
ments and SHGC of Sections 601.3.2.2 and 602.2, 
respecrively. 

Exception: Replacement skylights shall have a maximum 
[/-factor of 0.60 when installed in any location above 1,999 
HDD. 

SECTION 603 
MECHANICAL SYSTEMS 

603.1 Heating and air-conditioning equipment and appli- 
ances. Hearing and air-condirioning equipment and appliances 
shall comply with the applicable requirements of Section 503. 

SECTION 604 
SERVICE WATER HEATING 

604.1 Water-heating equipment and appliances. Wa- 
ter-hearing equipment and appliances shall comply with the ap- 
plicable requirements of Section 504. 

SECTION 605 
ELECTRICAL POWER AND LIGHTING 

605.1 Electrical energy consumption. In residential build- 
ings having individual dwelling units, provisions shall be made 

50 2003 IMTERNATIONAL ENERGY CONSERVATION CODE® 



ftPTER 7 



"OR ALL 



7MA Scope. Commercial buildings shall meet the require- 
ments of ASHRAE/IESNA 90.1. 

mm Commercial buildings that comply with Chap- 



ter 8. 



2003 IMTEIRNATlOiMAL ENERGY CONSERVATDON CODE® 



52 2003 D^STERNATIONAL EIMERGY CONSERVATION CODE® 



PTER® 



^TABLI 



(SEVERAL 

SOlol Scopeo The requirements contained in this chapter are 
apphcable to commercial buildings, or portions of commercial 
buildings. Buildings constructed in accordance with this chap- 
ter are deemed to comply with this code. 



The requirements in Sections 802, 803, 
804 and 805 shall each be satisfied on an individual basis. 
Where one or more of these sections is not satisfied, compli- 
ance for that section(s) shall be demonstrated in accordance 
with the apphcable provisions of ASHRAE/IESNA 90.1. 

Exceptitmi Buildings conforming to Section 806, pro- 
vided Sections 802.1.2, 802.3, 803.2.1 or 803.3.1 as ap- 
plicable, 803.2.2 or 803.3.2 as applicable, 803.2.3 or 
803.3.3 as applicable, 803.2.8 or 803.3.6 as apphcable, 
803.2.9 or 803.3.7 as apphcable, 804, 805.2, 805.3, 
805.4, 805.6 and 805.7 are each satisfied. 



m 



30 ENVELOPE Bl 



8(0)2ol GemeraL Walls, roof assemblies, floors, glazing and 
slabs on grade which are part of the building envelope for build- 
ings where the window and glazed door area is not greater than 
50 percent of the gross area of above-grade walls shall meet the 
requirements of Sections 802.2.1 through 802.2.9, as applica- 
ble. Buildings with more glazing shall meet the applicable pro- 
visions of ASHRAE/IESNA 90.1. 

802,lol ClassnlScaltnoiiii off walls. Walls associated with the 
building envelope shall be classified in accordance with 
Section 802.1.1.1, 802.1.1.2 or 802.1.1.3. 

SOlolol.l Atoove-grade walls. Above-grade walls are 
those walls covered by Section 802.2. 1 on the exterior of 
the building and completely above grade or the 
above-grade portion of a basement or first-story wall that 
is more than 15 percent above grade. 

8(0)2.1,1.2 Below-grade walls. Below-grade walls cov- 
ered by Section 802.2.8 are basement or first-story walls 
associated with the exterior of the building that are at 
least 85 percent below grade. 

8(0)2.1.1.3 Imlternor walls. Interior walls covered by Sec- 
tion 802.2.9 are those walls not on the exterior of the 
building and that separate conditioned and uncondi- 
tioned space. 

802.1.2 Motstare comtrol. All framed walls, floors and ceil- 
ings not ventilated to allow moisture to escape shall be pro- 
vided with an approved vapor retarder having a permeance 



rating of 1 perm (5.7 x 10 ~^' kg/Pa s m^) or less, when 
tested in accordance with the dessicant method using Proce- 
dure A of ASTM E 96. The vapor retarder shall be installed 
on the warm-in-winter side of the insulation. 

Exceptnoesi 

1. Buildings located in Climate Zones 1 through 7 as 
indicated in Table 302.1. 

2. In construction where moisture or its freezing will 
not damage the materials. 

3. Where other approved means to avoid condensa- 
tion in unventilated framed wall, floor, roof and 
ceiling cavities are provided. 

8(0)2.2 Criteria. The building envelope components shall meet 
each of the applicable requirements in Tables 802.2(1), 
802.2(2), 802.2(3) and 802.2(4) based on the percentage of 
wall that is glazed. The percentage of wall that is glazed shall be 
determined by dividing the aggregate area of rough openings 
for glazing (windows and glazed doors) in all above-grade 
walls associated with the building envelope by the total gross 
area of all above-grade exterior walls that are a part of the build- 
ing envelope. In buildings with multiple types of building enve- 
lope construction, each building envelope construction type 
shall be evaluated separately. Where Table 802.2(1), 802.2(2), 
802.2(3) or 802.2(4) does not hst a particular construction type, 
the applicable provisions of ASHRAE/IESNA 90.1 shall be |] 
used in lieu of Section 802. 



The minimum thermal resis- 
tance (i?- value) of the insulating material(s) installed in the 
wall cavity between the framing members and continuously 
on the walls shall be as specified in Table 802.2(1), 
802.2(2), 802.2(3) or 802.2(4), based on framing type and 
construction materials used in the wall assembly. Where 
both cavity and continuous insulation values are provided in 
Table 802.2(1), 802.2(2), 802.2(3) or 802.2(4), both re- 
quirements shall be met. Concrete masonry units (CMU) at 
least 8 inches (203 mm) nominal in thickness with essen- 
tially equal amounts of mass on either side of the insulation 
layer are considered as having integral insulation; however, 
the thermal resistance of that insulation shall not be consid- 
ered when determining compliance with Table 802.2(1), 
802.2(2), 802.2(3) or 802.2(4). "Other masonry walls" shall 
include walls weighing at least 35 pounds per square foot 
(170 kg/m^) of wall surface area and do not include CMUs 
less than 8 inches (203 mm) nominal in thickness. 



doors. Nonglazed doors shall meet the 
apphcable requirements for windows and glazed doors and 
be considered as part of the gross area of above-grade walls 
that are part of the building envelope. 



2003 DNTEIRIMATIONAL ENERGY CONSEIRVATIIOINI CODS 



53 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(1) 

BUILDING ENVELOPE REQUIREMENTS^ *'''°"9'^^ 

WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 



ELEMENT 


CONDITION/VALUE 


Skylights (IZ-factor) 




Slab or below-grade wall (if-value) 




Windows and glass doors 
PF < 0.25 
0.25 < PF < 0.50 
PF > 0.50 


SHGC 


{/-factor 














Roof assemblies (j?-value) 

All-wood joist/truss 

Metal joist/truss 

Concrete slab or deck 

Metal purlin with thermal block 

Metal purlin without thermal block 


Insulation between framing 


Continuous insulation 






















Floors over outdoor air or unconditioned 
space (i?-value) 

All- wood joist/truss 

Metal joist/truss 

Concrete slab or deck 


Insulation between framing 


Continuous insulation 














Above-grade walls (/?-value) 

Framed 

/?-value cavity 

/?-value continuous 

CMU, > 8 in, with integral insulation 
^-value cavity 

i?-value continuous 

Other masonry walls 
/?-value cavity 

/?-value continuous 


No framing 


Metal framing 


Wood framing 


NA 






NA 






NA 












NA 













For SI: 1 inch - 25.4 mm. 

a. Values shall be determined from Tables 802.2(5) through 802.2(37) using the climate zone(s) specified in Table 302.1. (Note: The tables begin on page 78.) 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



54 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUJLDIWG 



TABLE 802.2(2) 
ENVELOPE REQUBREWIENTS^*'^''*'"^'^^ 
WDNDOW AisSD GLAZED DOOR AREA GREATER THAM 110 PERCEMT 
BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL ARE^ 



ELEWiENT 


CONDmON/VALUE 


Skylights (^/-factor) 




Slab or below-grade wall (i?-vatae) 




Windows and glass doors 
PF < 0.25 
0.25 < PF < 0.50 
PF > 0.50 


SHGC 


y-factor 














Roof assemblies (i?-value) 
All-wood joist/truss 
Metal joist/truss 
Concrete slab or deck 
Metal purlin with thermal block 
Metal purlin without thermal block 


Insulation between framing 


Continuous insulation 






















Floors over outdoor air or imcoiniditioned 
space (if-value) 

All-wood joist/truss 

Metal joist/truss 

Concrete slab or deck 


Insulation between framing 


Continuous insulation 














Above-grade walls (i?-valiie) 

Framed 
/?- value cavity 

i?-value continuous 

CMU, > 8 in, with integral insulation 
/?-value cavity 

^-value continuous 

Other masonry walls 
i?-value cavity 

/?-value continuous 


No framing 


iVletal framing 


Wood framing 


NA 






NA 






NA 












NA 













For SI: 1 inch = 25.4 mm. 

a. Values shall be determined from Tables 802.2(5) through 802.2(37) using the climate zone(s) specified in Table 302.1. (Note: The tables begin on page 78.) 

b. "NA" indicates the condition is not applicable. 

c. An /?-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE^ 



55 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(3) 

BUBLDBNG ENVELOPE REQUBREMENTS^*'^™"^''® 

WBNDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT 

BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 



ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 




Slab or below-grade wall (i?-value) 




Windows and glass doors 
PF < 0.25 
0.25 < PF < 0.50 
PF > 0.50 


SHGC 


U-factor 














Roof assemblies (i?-value) 
All- wood joist/truss 
Metal joist/truss 
Concrete slab or deck 
Metal purlin with thermal block 
Metal purlin without thermal block 


Insulation between framing 


Continuous insulation 






















Floors over outdoor air or unconditioned 
space (If-value) 

All-wood joist/truss 

Metal joist/truss 

Concrete slab or deck 


Insulation between framing 


Continuous insulation 














Above-grade walls (l?-value) 

Framed 

/?-value cavity 

R-valut continuous 

CMU, > 8 in, with integral insulation 
/?- value cavity 

i?-value continuous 

Other masonry walls 
i?-value cavity 

i?- value continuous 


No framing 


iVietal framing 


Wood framing 


NA 






NA 






NA 












NA 













For SI: 1 inch = 25.4 mm. 

a. Values shall be determined from Tables 802.2(5) through 802.2(37) using the climate zone(s) specified in Table 302.1. (Note: The tables begin on page 78.) 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



56 



2003 INTERNATDOIMAL ENERGY CONSERVATBOfM CODE'' 



TABLE 802., 
ELOPE RE 



50 PERCEP 



ACCEPTABLE PRACTICE FOIR COMMERCDAL BUILDING 



ESVSEMTS^*'^^''"^'^^ 
EATER THAM 40 PERCENT 
OF ABOVE-GRADE WALL ARE^ 



ELEMENT 


CONDITION/VALUE 


Skylights (^/-IFactor) 




Slab or below-grade wall (^-value) 




Windows and glass doors 
PF < 0.25 
0.25 < PF < 0.50 
PF > 0.50 


SHGC 


Wactor 














Roof assemblies (^- value) 
All-wood joist/truss 
Metal joist/truss 
Concrete slab or deck 
Metal purlin with thermal block 
Metal purlin without thermal block 


Insulation between framing 


Continuous insulation 






















Floors over ouMoor air or 
MnconditioEed space (^-valee) 

All-wood joist/truss 

Metal joist/truss 

Concrete slab or deck 


Insulation between framing 


Continuous insulation 














Above-grade walls (i^-valee) 

Framed 

/?-value cavity 

/?-value continuous 

CMU, > 8 in, with integral insulation 
^-value cavity 

/?-value continuous 

Other masonry walls 
^-value cavity 

/?-value continuous 


Mo framing 


IVietal framing 


Wood framing 


NA 






NA 






NA 












NA 













For SI: 1 inch = 25.4 mm. 

a. Values shall be determined from Tables 802.2(5) through 802.2(37) using the climate zone(s) specified in Table 302.1. (Note: The tables begin on page 78.) 

b. "NA" indicates the condition is not applicable. 

c. An /?-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATDOtMAL ENERGY CONSERVATION CODE® 



57 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



L2.3 Windows and glass doors. The maximum solar 
heat gain coefficient (SHGC) and thermal transmittance 
([/-factor) of window assemblies and glass doors located in 
the building envelope shall be as specified in Table 802.2(1), 
802.2(2), 802.2(3) or 802.2(4), based on the window projec- 
tion factor. 

The window projection factor shall be determined in ac- 
cordance with Equation 8-1. 

PF = A/B (Equation 8=1) 

where: 

PF = Projection factor (decimal). 

A = Distance measured horizontally from the furthest 
continuous extremity of any overhang, eave, or 
permanently attached shading device to the vertical 
surface of the glazing. 

B = Distance measured vertically from the bottom of 
the glazing to the underside of the overhang, eave, 
or permanently attached shading device. 

Where different windows or glass doors have different 
PF values, they shall each be evaluated separately, or an 
area-weighted PF value shall be calculated and used for all 
windows and glass doors. 

802.2.4 Roof assembly. The minimum thermal resistance 
(/?- value) of the insulating material installed either between 
the roof framing or continuously on the roof assembly shall 
be as specified in Table 802.2(1), 802.2(2), 802.2(3) or 
802.2(4), based on construction materials used in the roof 
assembly. 

802.2.5 Skylights. Skylights located in the building enve- 
lope shall be limited to 3 percent of the gross roof assembly 
area and shall have a maximum thermal transmittance 
([/-factor) of the skylight assembly as specified in Table 
802.2(1), 802.2(2), 802.2(3) or 802.2(4). 

802.2.6 Floors over outdoor air or umcoeditiomed space. 
The minimum thermal resistance (/?- value) of the insulating 
material installed either between the floor framing or con- 
tinuously on the floor assembly shall be as specified in Table 
802.2(1), 802.2(2), 802.2(3) or 802.2(4) based on construc- 
tion materials used in the floor assembly. 

802.2.7 Slabs on grade. The minimum thermal resistance 
(/?- value) of the insulation around the perimeter of the slab 
floor shall be as specified in Table 802.2(1), 802.2(2), 
802.2(3) or 802.2(4). The insulation shall be placed on the 
outside of the foundation or on the inside of a foundation 
wall. The insulation shall extend downward from the top of 
the slab for a minimum of 48 inches (1219 mm) or down- 
ward to at least the bottom of the slab and then horizontally 
to the interior or exterior for a minimum total distance of 48 
inches (1219 mm). 

802.2.8 Below-grade walls. The minimum thermal resis- 
tance (/?-value) of the insulating material installed in, or 
continuously on, the below-grade walls shall be as specified 
in Table 802.2(1), 802.2(2), 802.2(3) or 802.2(4) and shall 



extend to a depth of 10 feet (3048 mm) below the outside fin- 
ish ground level, or to the level of the floor, whichever is 
less. 

802.2,9 Interior walls. The minimum thermal resistance 
(/?- value) of the insulating material installed in the wall cav- 
ity or continuously on the interior walls shall be as specified 
in Table 802.2(1) for above-grade walls, regardless of glaz- 
ing area, based on framing type and construction materials 
used in the wall assembly. 

802.3 Air leakage. The requirements for air leakage shall be as 
specified in Sections 802.3.1 and 802.3.2. 

802.3.1 Window and door assemblies. The air leakage of 
window and sliding or swinging door assemblies that are 
part of the building envelope shall be determined in accor- 
dance with AAMA/WDMA 101/I.S.2 or 
101/I.S.2/NAFS-02, or NFRC 400 by an accredited, inde- 
pendent laboratory, and labeled and certified by the manu- 
facturer and shall not exceed the values in Table 502. 1 .4. 1 . 

Exception; Site-constructed windows and doors that are 
weatherstripped or sealed in accordance with Section 
802.3.3. 

802.3.2 Curtain wall, storefront glazing and commercial 
entrance doors. Curtain wall, storefront glazing and com- 
mercial-glazed swinging entrance doors and revolving 
doors shall be tested for air leakage at 1.57 pounds per 
square foot (psf) (75 Pa) in accordance with ASTM E 283. 
For curtain walls and storefront glazing, the maximum air 
leakage rate shall be 0.3 cubic feet per minute per square 
foot (cfm/ft^) (5.5 m^/h • m^) of fenestration ai&a. For com- 
mercial glazed swinging entrance doors and revolving 
doors, the maximum air leakage rate shall be 1 .00 cfm/ft^ 
(18.3 m% • m2)ofdoor area when tested in accordance with 
ASTM E 283. 

802.3.3 Sealing of the building envelope. Openings and 
penetrations in the building envelope shall be sealed with 
caulking materials or closed with gasketing systems com- 
patible with the construction materials and location. Joints 
and seams shall be sealed in the same manner or taped or 
covered with a moisture vapor-permeable wrapping mate- 
rial. Sealing materials spanning joints between construction 
materials shall allow for expansion and contraction of the 
construction materials. 

802.3.4 Dampers integral to the building envelope. Stair, 
elevator shaft vents, and other dampers integral to the build- 
ing envelope shall be equipped with motorized dampers 
with a maximum leakage rate of 3 cfm/ft^ [5.1 L/s • m^] at 
1.0 inch water gauge (w.g.) (250 Pa) when tested in accor- 
dance with AMCA 500. 

Exception: Gravity (nonmotorized) dampers are permit- 
ted to be used in buildings less than three stories in height 
above grade. 

802.3.5 Loading dock weatherseals. Cargo doors and 
loading dock doors shall be equipped with weatherseals to 
restrict infiltration when vehicles are parked in the doorway. 



2003 l^!TERWATI©^SAL ENERGY CONSERVATION CODE^ 



/S^CCEPTABLE PRACTICE FOR COMMERCIAL BUSLDJNG 



A door that separates conditioned space 
from the exterior shall be protected with an enclosed vesti- 
bule, with all doors opening into and out of the vestibule 
equipped with self-closing devices. Vestibules shall be de- 
signed so that in passing through the vestibule it is not neces- 
sary for the interior and exterior doors to open at the same time. 



1. Buildings in Climate Zones la through 4b as indi- 
cated in Table 302. 1 . 

2. Doors not intended to be used as a building en- 
trance door, such as doors to mechanical or electri- 
cal equipment rooms. 

3 . Doors opening directly from a guestroom or dwell- 
ing unit. 

4. Doors that open directly from a space less than 
3,000 square feet (298 m^) in area. 

5. Revolving doors. 

6. Doors used primarily to facilitate vehicular move- 
ment or material handling and adjacent personnel 
doors. 

802.3.7 Recessed llghtlmg fixtures. When installed in the 
building envelope, recessed lighting fixtures shall meet one 
of the following requirements: 

1 . Type IC rated, manufactured with no penetrations be- 
tween the inside of the recessed fixture and ceiling 
cavity and sealed or gasketed to prevent air leakage 
into the unconditioned space. 

2. Type IC or non-IC rated, installed inside a sealed box 
constructed from a minimum 0.5-inch-thick (12.7 
mm) gypsum wallboard or constructed from a pre- 
formed polymeric vapor barrier, or other air-tight as- 
sembly manufactured for this purpose, while 
maintaining required clearances of not less than 0.5 
inch (12.7 mm) from combustible material and not 
less than 3 inches (76 mm) from insulation material. 

3. Type IC rated, in accordance with ASTM E 283 ad- 
mitting no more than 2.0 cubic feet per minute (cfm) 
(0.944 L/s) of air movement from the conditioned 
space to the ceiling cavity. The lighting fixture shall 
be tested at 1 .57 psf (75 Pa) pressure difference and 
shall be labeled. 



ICTHON 803 



^YSTi 



8CD3ol GemeraL This section covers the design and construction 
of mechanical systems and equipment serving the building 
heating, cooling or ventilating needs. 

803.1.1 CompMamce. Compliance with Section 803 shall be 
achieved by meeting either Section 803.2 or 803.3. 

803.2 Simple HVAC systems amd eqeipmemit. This section 
applies to buildings served by unitary or packaged HVAC 
equipment Hsted in Tables 803.2.2(1) through 803.2.2(5), each 
serving one zone and controlled by a single thermostat in the 
zone served. It also applies to two-pipe heating systems serving 
one or more zones, where no cooling system is installed. 



This section does not apply to fan systems serving multiple 
zones, nonunitary or nonpackaged HVAC equipment and sys- 
tems or hydronic or steam heating and hydronic cooling equip- 
ment and distribution systems that provide cooling or cooling 
and heating which are covered by Section 803.3. 

[M] 803.2.1 Cakelatiom off toeatimg amd cooling loads. 
Design loads shall be determined in accordance with the 
procedures described in the ASHRAE Fundamentals 
Handbook. Heating and cooling loads shall be adjusted to 
account for load reductions that are achieved when energy 
recovery systems are utilized in the HVAC system in accor- 
dance with the ASHRAE HVAC Systems and Equipment 
Handbook. Alternatively, design loads shall be determined 
by an approved equivalent computation procedure, using 
the design parameters specified in Chapter 3. 



803.2.1,1 Eqmnpmemt and system skirag. Heating and 
cooling equipment and systems capacity shall not exceed 
the loads calculated in accordance with Section 803.2.1. 
A single piece of equipment providing both heating and 
cooling must satisfy this provision for one function with 
the capacity for the other function as small as possible, 
within available equipment options. 



Equipment shall meet the minimum efficiency require- 
ments of Tables 803.2.2(1), 803.2.2(2), 803.2.2(3), 
803.2.2(4) and 803.2.2(5), when tested and rated in accor- 
dance with the applicable test procedure. The efficiency 
shall be verified through data furnished by the manufacturer 
or through certification under an approved certification pro- 
gram. Where multiple rating conditions or performance re- 
quirements are provided, the equipment shall satisfy all 
stated requirements. 



Is. Require- 
ments for temperature and humidity controls shall be as 
specified in Sections 803.2.3.1 and 803.2.3.2. 



803,2.3.1 TemperatMire comtrols. Each heating and 
cooling system shall have at least one solid-state pro- 
grammable thermostat. The thermostat shall have the ca- 
pability to set back or shut down the system based on day 
of the week and time of day, and provide a readily acces- 
sible manual override that will return to the presetback or 
shutdown schedule without reprogramming. 



serving hotel/motel 



lomss 

1. HVAC systems 
guestrooms. 



2. Packaged terminal air conditioners, packaged 
terminal heat pumps and room air conditioner 
systems. 

803.2.3.2 Heat pemp snapplememtary heat. Heat 
pumps having supplementary electric-resistance heat 
shall have controls that, except during defrost, prevent 
supplemental heat operation when the heat pump can 
meet the heating load. 



When humidi stats are in- 
stalled, they shall have the capability to prevent the use of D 
fossil fuel or electric power to achieve a humidity below 



2003 DNTERBSIIATIOEVIAL ENERGY CONSERVATION CODI 



59 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



60 percent when the system controlled is cooling, and 
above 30 percent when the system controlled is heating. 

Exceptions: 

1 . Systems serving spaces where specific humid- 
ity levels are required to satisfy process needs, 
such as computer rooms, museums, surgical 
suites and buildings with refrigerating systems, 
such as supermarkets, refrigerated warehouses 
and ice arenas. 

2. Systems where humidity is removed as the re- 
sult of the use of a desiccant system with energy 
recovery. 

3. Reheat systems utilizing site-recovered (in- 
cluding condenser heat) or site-solar energy 
sources. 

803.2.4 Hydronic system controls. Hydronic systems of at 
least 600,000 British thermal units per hour (Btu/h) (175 
860 W) design capacity supplying heated water to comfort 
conditioning systems shall include controls that meet the re- 
quirements of Section 803.3.3.7. 

803.2.5 Ventilation. Ventilation, either natural or mechani- 
cal, shall be provided in accordance with Chapter 4 of the In- 
ternational Mechanical Code. Where mechanical 
ventilation is provided, the system shall provide the capabil- 
ity to reduce the outdoor air supply to the minimum required 
by Chapter 4 of the International Mechanical Code. 



803.2.6 Cooling with outdoor air. Each system with a cool- 
ing capacity greater than 65,000 Btu/h (19 kW) located in 
other than Climate Zones 1 , 2, 3b, 5a or 6b as shown in Table 
302.1 shall have an economizer that will automatically shut 
off the cooling system and allow all of the supply air to be 
provided directly from outdoors. 

Economizers shall be capable of operating at 100-percent 
outside air, even if additional mechanical cooling is required 
to meet the cooling load of the building. Where a single 
room or space is supplied by multiple air systems, the aggre- 
gate capacity of those systems shall be used in applying this 
requirement. 

Exceptions: 

1. Where the cooling equipment is covered by the 
minimum efficiency requirements of Table 
803.2.2(1) or 803.2.2(2) and meets the efficiency 
requirements of Table 803.2.6. 

2. Systems with air or evaporatively cooled 
condensors and which serve spaces with open case 
refrigeration or that require filtration equipment in 
order to meet the minimum ventilation require- 
ments of Chapter 4 of the International Mechani- 
cal Code. 

3. Systems with a cooling capacity less than 135,000 
Btu/h (40 kW) in Climate Zones 3c, 5b, 7, 13b, and 
14. 



TABLE 803.2.2(1) 

UNITARY AIR CONDSTIONERS AMD CONDENSING UNITS, ELECTRICALLY OPERATED, 

MINIMUM EFFICIENCY REQUIREMENTS 



EQUIPMENT TYPE 


SIZE CATEGORY 


SUBCATEGORY OR 
RATING CONDITION 


MINIMUM 
EFFICIENCY " 


TEST PROCEDURE^ 


Air conditioners, 
Air cooled 


< 65,000 Btu/h^ 


Split system 


10.0 SEER 


ARI 210/240 


Single package 


9.7 SEER 


> 65,000 Btu/h and 
< 135,000 Btu/h 


Split system and 
single package 


10.3 EER'^ 


> 135,000 Btu/h and 
< 240,000 Btu/h 


Split system and 
single package 


9.7 EER'^ 


ARI 340/360 


> 240,000 Btu/h and 
< 760,000 Btu/h 


SpHt system and 
single package 


9.5 EER^ 
9.7 IPLV= 


> 760,000 Btu/h 


Split system and 
single package 


9.2 EER'^ 
9.4 IPLV^ 


Air conditioners. Water and 
evaporatively cooled 


< 65,000 Btu/h 


Split system and 
single package 


12.1 EER 


ARI 210/240 


> 65,000 Btu/h and 
< 135,000 Btu/h 


Spht system and 
single package 


11.5EER^ 


> 135,000 Btu/h and 
< 240,000 Btu/h 


Spht system and 
single package 


U.OEER^ 


ARI 340/360 


> 240,000 Btu/h 


Spht system and 
single package 


11.0EER<= 
10.3 IPLV^ 



For SI: 1 British thermal unit per hour = 0.293 1 W. 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. IPLVs are only applicable to equipment with capacity modulation. 

c. Deduct 0.2 from the required EERs and IPLVs for units with a heating section other than electric resistance heat. 

d. Single-phase air-cooled air conditioners < 65,000 Btu/h are regulated by the National Appliance Energy Conservation Act of 1987 (NAECA). SEER values are 
those set by NAECA. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



TABLE 803.2.2(2) 
ED HEM PUMPS, ELECTRICALLY ' 
m EFFDCIEMCY REQUIREMENTS 



DERATED, 



EQUIPMENT TYPE 


SOZE CATEGORY 


SUBCATEGORY OR 
RATING CONDITION 


iminimum 
efficiency'' 


TEST PROCEDURE^ 


Air cooled (Cooling mode) 


< 65,000 Btu/h" 


Split system 


10.0 SEER 


ARI 210/240 


Single package 


9.7 SEER 


> 65,000 Btu/h and 
< 135,000 Btu/h 


SpUt system and 
single package 


10.1 EER^ 


> 135,000 Btu/h and 
< 240,000 Btu/h 


Split system and 
single package 


9.3 EER^ 


ART 340/360 


> 240,000 Btu/h 


Spht system and 
single package 


9.0 EER^ 
9.2 IPLV^ 


Water source 
(Cooling mode) 


< 17,000 Btu/h 


86°F entering water 


11.2EER 


ARI/ASHRAE- 13256-1 


> 17,000 Btu/h and 
< 135,000 Btu/h 


86°F entering water 


12.0 EER 


ARI/ASHRAE- 13256-1 


Groundwater source 
(Cooling mode) 


< 135,000 Btu/h 


59°F entering water 


16.2 EER 


ARI/ASHRAE- 13256-1 


Ground source 
(Cooling mode) 


< 135,000 Btu/h 


77°F entering water 


13.4 EER 


ARI/ASHRAE- 13256-1 


Air cooled 
(Heating mode) 


< 65,000 Btu/h" 
(Coohng capacity) 


Spht system 


6.8 HSPF 


ARI 210/240 


Single package 


6.6 HSPF 


> 65,000 Btu/h and 

< 135,000 Btu/h 

(Cooling capacity) 


47°F db/43°F wb 
outdoor air 


3.2 COP 


> 135,000 Btu/h 
(Cooling capacity) 


47°F db/43°F wb 
outdoor air 


3.1 COP 


ARI 340/360 


Water source 
(Heating mode) 


< 135,000 Btu/h 
(Coohng capacity) 


68°F entering water 


4.2 COP 


ARFASHRAE- 13256-1 


Groundwater source 
(Heating mode) 


< 135,000 Btu/h 
(Cooling capacity) 


50°F entering water 


3.6 COP 


ARI/ASHRAE- 13256-1 


Ground source 
(Heating mode) 


< 135,000 Btu/h 
(Cooling capacity) 


32°F entering water 


3.1 COP 


ARI/ASHRAE- 13256-1 



For SI: °C ^ [(°F) - 32] / 1.8, IBritish thermal unit per hour = 0.293 IW. 
db = dry-bulb temperature, °F 
wb = wet-bulb temperature, °F 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. IPLVs and Part load rating conditions are only applicable to equipment with capacity modulation. 

c. Deduct 0.2 from the required EERs and IPLVs for units with a heating section other than electric resistance heat. 

d. Single-phase air-cooled heat pumps < 65,000 Btu/h are regulated by the National Appliance Energy Conservation Act of 1987 (NAECA). SEER and HSPF values 
are those set by NAECA. 



2003 SWTE^NATDOWAL ENERGY CONSERVATBON CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 803.2.2(3) 
PACKAGED TERMINAL AIR CONDITIONERS AND PACKAGED TERMINAL HEAT PUMPS 



EQUIPMENT TYPE 


SIZE CATEGORY (INPUT) 


SUBCATEGORY OR 
RATING CONDITION 


MINIMUM 

efficiency" 


TEST PROCEDURE^ 


PTAC (Cooling mode) 
New construction 


All capacities 


95 °F db outdoor air 


12.5 -(0.213- Cap/1000) EER 


ARI 310/380 


PTAC (Cooling mode) 
Replacements'^ 


All capacities 


95°F db outdoor air 


10.9 - (0.213 • Cap/1000) EER 


PTHP (Cooling mode) 
New construction 


All capacities 


95°F db outdoor air 


12.3 - (0.213 • Cap/1000) EER 


PTHP (Cooling mode) 
Replacements'^ 


All capacities 


95°F db outdoor air 


10.8 -(0.213- Cap/1000) EER 


PTHP (Heating mode) 
New construction 


All capacities 


— 


3.2 - (0.026 • Cap/1000) COP 


PTHP (Heating mode) 
Replacements^ 


All capacities 


— 


2.9 - (0.026 • Cap/1000) COP 



For SI:°C = [(°F) - 32] / 1.8, 1 British thermal unit per hour = 0.2931W. 
db = dry-bulb temperature, °F 
wb = wet-bulb temperature, °F 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. Cap means the rated cooling capacity of the product in Btu/h. If the unit's capacity is less than 7,000 Btu/h, use 7,000 Btu/h in the calculation. If the unit's capacity 
is greater than 15,000 Btu/h, use 15,000 Btu/h in the calculation. 

c. Replacement units must be factory labeled as follows: "MANUFACTURED FOR REPLACEMENT APPLICATIONS ONLY; NOT TO BE INSTALLED IN 
NEW CONSTRUCTION PROJECTS." Replacement efficiencies apply only to units with existing sleeves less than 16 inches (406 mm) high and less than 42 
inches (1067 mm) wide. 

TABLE 803.2.2(4) 

WARM AIR FURNACES AND COMBINATION WARM AIR FURNACES/AIR-CONDITDONING UNITS, 

WARM AIR DUCT FURNACES AND UNIT HEATERS, MINIMUM EFFICIENCY REQUIREMENTS 



EQUIPMENT TYPE 


SIZE CATEGORY (INPUT) 


SUBCATEGORY OR 
RATING CONDITION 


MINIMUM 
EFFICIENCY"'® 


TEST PROCEDURE^ 


Warm air furnaces, gas fired 


< 225,000 Btu/h 


— 


78% AFUE 
or 

80% £,= 


DOE 10 CFR 

Part 430 or 

ANSI Z2 1.47 


> 225,000 Btu/h 


Maximum capacity'^ 


80% £/ 


ANSI Z2 1. 47 


Warm air furnaces, oil fired 


< 225,000 Btu/h 


— 


78% AFUE 
or 

80% e;" 


DOE 10 CFR 
Part 430 or 

UL727 


> 225,000 Btu/h 


Maximum capacity'' 


81%£,g 


UL727 


Warm air duct furnaces, 
gas fired 


All capacities 


Maximum capacity'' 


80% £, 


ANSI Z83.9 


Warm air unit heaters, 
gas fired 


All capaciues 


Maximum capacity'' 


80% £, 


ANSI Z83.8 


Warm air unit heaters, 
oil fired 


All capacities 


Maximum capacity'' 


80% E^ 


UL731 



For SI: 1 Brifish thermal unit per hour = 0.293 1 W. 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. Minimum and maximum ratings as provided for and allowed by the unit's controls. 

c. Combinafion units not covered by the National Appliance Energy Conservation Act of 1987 (NAECA) (3-phase power or cooling capacity greater than or equal to 
65,000 Btu/h [19 kW]) shall comply with either rating. 

d. E, = Thermal efficiency. See test procedure for detailed discussion. 

e. E^ = Combusfion efficiency (100% less flue losses). See test procedure for detailed discussion. 

f. E^ = Combustion efficiency. Units must also include an IID, have jacket losses not exceeding 0.75 percent of the input rating, and have either power venting or a 
flue damper A vent damper is an acceptable alternative to a flue damper for those furnaces where combusfion air is drawn from the conditioned space. 

g. £, = Thermal efficiency. Units must also include an IID, have jacket losses not exceeding 0.75 percent of the input rafing, and have either power venfing or a flue 
damper A vent damper is an acceptable altemafive to a flue damper for those furnaces where combustion air is drawn from the condifioned space. 



62 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



TABLE 803.2.2(5) 
iRED, MBNBiViUM EFFBCBENCY REQUBREMEP 



EQUIPMENT type' 


SIZE CATEGORY 
(INPUT) 


SUBCATEGORY OR RATING 
CONDITION 


MINIMUM 
EFFIC1ENCY'='^'^ 


TEST PROCEDURE^ 


Boilers, Gas fired 


< 300,000 Btu/h 


Hot water 


80% AFUE 


DOE 10 CFR 

Part 430 


Steam 


75% AFUE 


> 300,000 Btu/h and 
< 2,500,000 Btu/h 


Minimum capacity'' 


75% E, 


H.I. HBS 86 


> 2,500,000 Btu/h^ 


Hot water 


80% E, 


Steam 


80% E, 


Boilers, Oil fired 


< 300,000 Btu/h 


— 


80% AFUE 


DOE 10 CFR 

Part 430 


> 300,000 Btu/h and 
< 2,500,000 Btu/h 


Minimum capacity'' 


78% E, 


H.I. HBS 86 


> 2,500,000 Btu/h^ 


Hot water 


83% E, 


Steam 


83% E, 


Boilers, Oil fired (Residual) 


> 300,000 Btu/h and 
< 2,500,000 Btu/h 


Minimum capacity'' 


78% E, 


H.I. HBS 86 


> 2,500,000 Btu/hf 


Hot water 


83% £, 


Steam 


83% E, 



For SI: 1 British thermal unit per hour = 0.293 IW. 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. Minimum ratings as provided for and allowed by the unit's controls. 

c. E^ = Combustion efficiency (100 percent less flue losses). See reference document for detailed information. 

d. £, = Thermal efficiency. See reference document for detailed information. 

e. Alternative test procedures used at the manufacturer's option are ASME PTC-4. 1 for units greater than 5,000,000 Btu/h input, or ANSI Z21. 13 for units greater 
than or equal to 300,000 Btu/h and less than or equal to 2,500,000 Btu/h input. 

f. These requirements apply to boilers with rated input of 8,000,000 Btu/h or less that are not packaged boilers, and to all packaged boilers. Minimum efficiency re- 
quirements for boilers cover all capacities of packaged boilers. 



TABLE 803.2.6 
■Ml EFFBCIENCY ECOMOI 



m EXCEPTION 



TOTAL COOLING CAPACITY OF 
EQUIPMENT 


BUILDING LOCATION 


Zones 6a, Oa, 10a, 11a, 12a, 12b, 13a, 
13b, 14a, 14b, 15-19 


Zones 3a, 3b, 4a, 7a, 8, 9b, 1 0b, 1 1 b 


Zones 4b, 5a, 5b, 6b, 7b 


90,000 Btu/h to 134,999 Btu/h 


Not Applicable 


11.4EER 


10.4 EER 


135,000 Btu/h to 759,999 Btu/h 


Not Applicable 


10.9 EER 


9.9 EER 


760,000 Btu/h or more 


Not Applicable 


10.5 EER 


9.6 EER 



For SI: °C = [(°F)-32]/l .8, 1 British thermal unit per hour = 0.293 1 W. 



2003 WTERNATBONAL EiSlERGY CONSERVATION CODI 



63 



ACCEPTABLE PRACTiCE FOR COMMERCSAL BU8LD8NGS 



803.2.7 Shutoff dampers. Outdoor air supply and exhaust 
ducts shall be provided with automatic means to reduce and 
shut off airflow. 

Exceptions: 

1 . Systems serving areas designed for continuous op- 
eration. 

2. Individual systems with a maximum 3,000 cfm 
(1416 L/s) airflow rate. 

3. Systems with readily accessible manual dampers. 

4. Where restricted by health and life safety codes. 

803.2.8 Duct and plenum Insulation and sealing. All sup- 
ply and return air ducts and plenums shall be insulated with 
a minimum of R-5 insulation when located in unconditioned 
spaces and with a minimum of R-8 insulation when located 
outside the building. When located within a building enve- 
lope assembly, the duct or plenum shall be separated from 
the building exterior or unconditioned or exempt spaces by a 
minimum of R-8 insulation. 

Exceptions: 

1 . When located within equipment. 

2. When the design temperature difference between 
the interior and exterior of the duct or plenum does 
not exceed 15°F (8°C). 

All joints, longitudinal and transverse seams and connec- 
tions in ductwork, shall be securely fastened and sealed with 
welds, gaskets, mastics (adhesives), mastic-plus-embed- 
ded-fabric systems, or tapes. Tapes and mastics used to seal 
ductwork shall be listed and labeled in accordance with UL 
1 8 1 A or UL 1 8 1 B . Duct connections to flanges of air distri- 
bution system equipment shall be sealed and mechanically 
fastened. Unhsted duct tape is not permitted as a sealant on 
any metal ducts. 

803.2.8.1 Duct construction. Ductwork shall be con- 
structed and erected in accordance with the International 
Mechanical Code. 

803.2.8.1.1 High- and medium-pressure duct sys= 
tems. All ducts and plenums operating at a static pres- 
sures greater than 2 inches w.g. (500 Pa) shall be 
insulated and sealed in accordance with Section 
803.2.8. Ducts operating at a static pressures in excess 
of 3 inches w.g. (750 Pa) shall be leak tested in accor- 
dance with Section 803.3.6. Pressure classifications 
specific to the duct system shall be clearly indicated 
on the construction documents in accordance with the 
International Mechanical Code. 

803.2.8.1.2 Low-pressure duct systems. All longitu- 
dinal and transverse joints, seams and connections of 
supply and return ducts operating at a static pressure 
less than or equal to 2 inches w.g. (500 Pa) shall be se- 
curely fastened and sealed with welds, gaskets, 
mastics (adhesives), mastic-plus-embedded-fabric 
systems or tapes installed in accordance with the man- 
ufacturer's installation instructions. Pressure classifi- 
cations specific to the duct system shall be clearly 



indicated on the construction documents in accor- 
dance with the International Mechanical Code. 



tioe: Continuously welded and lock- 
ing-type longitudinal joints and seams on ducts op- 
erating at static pressures less than 2 inches w.g. 
(500 Pa) pressure classification. 

803.2.9 Piping insulation. All piping serving as part of a 
heating or cooling system shall be thermally insulated in ac- 
cordance with Section 803.3.7. 

803.3 Complex HVAC systems and equipment. This section 
applies to buildings served by HVAC equipment and systems 
not covered in Section 803.2. 

803.3.1 Calculation of heating and cooling loads. Design 
loads shall be determined in accordance with Section 
803.2.1. 

803.3.1.1 Equipment and system sizing. Heating and 
cooling equipment and system capacity shall not exceed 
the loads calculated in accordance with Section 803.2. 1 . 

Exceptions: 

1. Required standby equipment and systems pro- 
vided with controls and devices that allow such 
systems or equipment to operate automatically 
only when the primary equipment is not operat- 
ing. 

2. Multiple units of the same equipment type with 
combined capacities exceeding the design load 
and provided with controls that have the capa- 
bility to sequence the operation of each unit 
based on load. 



equipment performance requirements. 
Equipment shall meet the minimum efficiency requirements 
of Tables 803.3.2(1) through 803.3.2(6) and Table 
803.2.2(5), when tested and rated in accordance with the ap- 
plicable test procedure. The efficiency shall be verified 
through certification under an approved certification pro- 
gram or, if no certification program exists, the equipment ef- 
ficiency ratings shall be supported by data furnished by the 
manufacturer. Where multiple rating conditions or perfor- 
mance requirements are provided, the equipment shall sat- 
isfy all stated requirements. Where components, such as 
indoor or outdoor coils, from different manufacturers are 
used, calculations and supporting data shall be furnished by 
the designer that demonstrate that the combined efficiency 
of the specified components meets the requirements herein. 

Where unitary or prepackaged equipment is used in a 
complex HVAC system and is not covered by Section 
803.3.2, the equipment shall meet the applicable require- 
ments of Section 803.2.2. 

Exception: Equipment listed in Table 803.3.2(2) not de- 
signed for operation at ARI Standard test conditions of 
44°F (7°C) leaving chilled water temperature and 85 °F 
(29°C) entering condenser water temperature shall have 
a minimum full load COP and IPLV rating as shown in 
Tables 803.3.2(3) through 803.3.2(5) as applicable. The 



2003 IMTERMATIONAL EMERGY CONSERVATDON CODE® 



ACCEPTABLE PRACTDCE FOR COMMERCIAL BUILDIMG 



table values are only applicable over the following full 
load design ranges: 

Leaving Chilled 

V^ater Temperature: 40 to 48°F (4 to 9°C) 

Entering Condenser 

Water Temperature: 75 to 85°F (24 to 29°C) 



Condensing Water 

Temperature Rise: 5 to 15°F (A3 to A8°C ) 

Chillers designed to operate outside of these ranges are 
not covered by this code. 



TABLE 
COMDENSING UNSTS, ELECTRICALLY OP 



.3.2(1) 

ED, MINIMUM EFFICIENCY REQUIREMENTS 



EQUIPMENT TYPE 


SIZE CATEGORY 


MINDMUiUJ 

efficiency" 


TEST procedure^ 


Condensing units, 
Air cooled 


> 135,000 Btu/h 


10.1 EER 

11.2 IPLV 


ARI365 


Condensing units, 
Water or evaporatively cooled 


> 135,000 Btu/h 


13.1 EER 
13.1 IPLV 



For SI: 1 British thermal unit per hour = 0.293 1 W. 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. IPLVs are only applicable to equipment with capacity modulation. 

TABLE 803.3.2(2) 
S, MIMBMUM EFFICIENCY REQUIREMENTS 



EQUlPWiENT TYPE 


SIZE CATEGORY 


MDNDMUM 

efficiency" 


TEST PROCEDURE^ 


Air cooled, with condenser. 
Electrically operated 


< 150 tons 


2.80 COP 
2.80 IPLV 


ARI 550/590 


> 150 tons 


2.50 COP 
2.50 IPLV 


Air cooled, 

without condenser. 

Electrically operated 


All capacities 


3.10 COP 
3.10 IPLV 


ARI 550/590 


Water cooled. Electrically operated. Positive displacement 
(reciprocating) 


All capacities 


4.20 COP 
4.65 IPLV 


Water cooled. 

Electrically operated. 

Positive displacement 

(rotary screw and scroll) 


< 150 tons 


4.45 COP 
4.50 IPLV 


ARI 550/590 


> 150 tons and 
< 300 tons 


4.90 COP 
4.95 IPLV 


> 300 tons 


5.50 COP 
5.60 IPLV 


Water cooled. 

Electrically operated, 

centrifugal 


< 150 tons 


5.00 COP 
5.00 IPLV 


ARI 550/590 


> 150 tons and 
< 300 tons 


5.55 COP 
5.55 IPLV 


> 300 tons 


6.10 COP 
6.10 IPLV 


Air cooled, absorption 
single effect 


All capacities 


0.60 COP 


ARI 560 


Water cooled, absorption 
single effect 


All capacities 


0.70 COP 


Absorption double effect, 
indirect-fired 


All capacities 


1.00 COP 
1.05 IPLV 


Absorption double effect, 
direct-fired 


All capacities 


1.00 COP 
1.00 IPLV 



For SI: 1 ton = 3.517 kW, °C = [(°F) - 32] / 1.8. 

a. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 

b. The chiller equipment requirements do not apply for chillers used in low temperature applications where the design leaving fluid temperature is less than or equal 
to 40°F. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 803.3.2(3) 

COPS AND IPLVS FOR NONSTANDARD CENTRIFUGAL CHILLERS < 150 TONS 



CENTRIFUGAL CHILLERS < 150 TONS 


Leaving chilled water 
temperature (°F) 


Entering condenser water 
temperature (°F) 


Lift^ (°F) 


Condenser flow rate 


2 gpm/ton 


2.5 gpm/ton 


3 gpm/ton 


4 gpm/ton 


5 gpm/ton 


6 gpm/ton 


Required COP and IPLV 


46 


75 


29 


6.00 


6.27 


6.48 


6.80 


7.03 


7.20 


45 


75 


30 


5.92 


6.17 


6.37 


6.66 


6.87 


7.02 


44 


75 


31 


5.84 


6.08 


6.26 


6.53 


6.71 


6.86 


43 


75 


32 


5.75 


5.99 


6.16 


6.40 


6.58 


6.71 


42 


75 


33 


5.67 


5.90 


6.06 


6.29 


6.45 


6.57 


41 


75 


34 


5.59 


5.82 


5.98 


6.19 


6.34 


6.44 


46 


80 


34 


5.59 


5.82 


5.98 


6.19 


6.34 


6.44 


40 


75 


35 


5.50 


5.74 


5.89 


6.10 


6.23 


6.33 


45 


80 


35 


5.50 


5.74 


5.89 


6.10 


6.23 


6.33 


44 


80 


36 


5.41 


5.66 


5.81 


6.01 


6.13 


6.22 


43 


80 


37 


5.31 


5.57 


5.73 


5.92 


6.04 


6.13 


42 


80 


38 


5.21 


5.48 


5.64 


5.84 


5.95 


6.04 


41 


80 


39 


5.09 


5.39 


5.56 


5.76 


5.87 


5.95 


46 


85 


39 


5.09 


5.39 


5.56 


5.76 


5.87 


5.95 


40 


80 


40 


4.96 


5.29 


5.47 


5.67 


5.79 


5.86 


45 


85 


40 


4.96 


5.29 


5.47 


5.67 


5.79 


5.86 


44 


85 


41 


4.83 


5.18 


5.40 


5.59 


5.71 


5.78 


43 


85 


42 


4.68 


5.07 


5.28 


5.50 


5.62 


5.70 


42 


85 


43 


4.51 


4.94 


5.17 


5.41 


5.54 


5.62 


41 


85 


44 


4.33 


4.80 


5.05 


5.31 


5.45 


5.53 


40 


85 


45 


4.13 


4.65 


4.92 


5.21 


5.35 


5.44 


Condenser AT'' 


14.04 


11.23 


9.36 


7.02 


5.62 


4.68 



For SI: °C = [(°F) - 32] / 1.8, 1 gallon per minute = 3.785 L/min., 1 ton = 12,000 British thermal unit per hour = 3.517 kW. 

a. Lift = Entering condenser water temperature (°F) - Leaving chilled water temperature (°F). 

b. Condenser AT = Leaving condenser water temperature (°F) - Entering condenser water temperature (°F). 
K,,j = 6.1507 - 0.30244(X) + 0.0062692(X)2 - 0.000045595(X) 

where: X = Condenser AT + Lift 
COP,,-K„,^.xCOP,, 



66 



2003 INTERNATIONAL ENERGY CONSERVATION CODE** 



ACCEPTABLE PRACTICE FOR COMMERCIIAL BUILDING 



COPs 


TABLE 803.3.2(4) 
^IMD DPLVS FOR MOMSTANDARD CENTRBFUGAL CHILLERS 


>150TONS,< 300 TONS 




CENTRIFUGAL CHILLERS > 150 Tons, < 300 Tons 
COPstd = 5.55 


Leaving chilled water 
temperature (°F) 


Entering condenser water 
temperature (°F) 


Lift^ (°F) 


Condenser flow rate 


2 gpm/ton 


2.5 gpm/ton 


3 gpm/ton 


4 gpm/ton 


5 gpm/ton 


6 gpm/ton 


Required COP and IPLV 


46 


75 


29 


6.17 


6.44 


6.66 


6.99 


7.23 


7.40 


45 


75 


30 


6.08 


6.34 


6.54 


6.84 


7.06 


7.22 


44 


75 


31 


6.00 


6.24 


6.43 


6.71 


6.90 


7.05 


43 


75 


32 


5.91 


6.15 


6.33 


6.58 


6.76 


6.89 


42 


75 


33 


5.83 


6.07 


6.23 


6.47 


6.63 


6.75 


41 


75 


34 


5.74 


5.98 


6.14 


6.36 


6.51 


6.62 


46 


80 


34 


5.74 


5.98 


6.14 


6.36 


6.51 


6.62 


40 


75 


35 


5.65 


5.90 


6.05 


6.26 


6.40 


6.51 


45 


80 


35 


5.65 


5.90 


6.05 


6.26 


6.40 


6.51 


44 


80 


36 


5.56 


5.81 


5.97 


6.17 


6.30 


6.40 


43 


80 


37 


5.46 


5.73 


5.89 


6.08 


6.21 


6.30 


42 


80 


38 


5.35 


5.64 


5.80 


6.00 


6.12 


6.20 


41 


80 


39 


5.23 


5.54 


5.71 


5.91 


6.03 


6.11 


46 


85 


39 


5.23 


5.54 


5.71 


5.91 


6.03 


6.11 


40 


80 


40 


5.10 


5.44 


5.62 


5.83 


5.95 


6.03 


45 


85 


40 


5.10 


5.44 


5.62 


5.83 


5.95 


6.03 


44 


85 


41 


4.96 


5.33 


5.55 


5.74 


5.86 


5.94 


43 


85 


42 


4.81 


5.21 


5.42 


5.66 


5.78 


5.86 


42 


85 


43 


4.63 


5.08 


5.31 


5.56 


5.69 


5.77 


41 


85 


44 


4.45 


4.93 


5.19 


5.46 


5.60 


5.69 


40 


85 


45 


4.24 


4.77 


5.06 


5.35 


5.50 


5.59 


Condenser AT'' 


14.04 


11.23 


9.36 


7.02 


5.62 


4.68 



For SI: °C = [(°F) - 32] / 1.8, 1 gallon per minute = 3.785 L/min., 1 ton = 12,000 British thermal unit per hour = 3.517 kW. 

a. Lift = Entering condenser water temperature (°F) - Leaving chilled water temperature (°F). 

b. Condenser AT = Leaving condenser water temperature (°F) - Entering condenser water temperamre (°F). 
K^jj = 6.1507 - 0.30244(X) + 0.0062692(X)2 - 0.000045595(X) 

where: X = Condenser AT + Lift 
COP,,-K^,xCOP,„ 



2003 DNTERNATIONAL ENERGY CONSERVATDON CODE® 



67 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 803.3.2(5) 
COPS AND IPLVS FOR NONSTANDARD CENTRIFUGAL CHILLERS > 300 TONS 



CENTRIFUGAL CHILLERS > 300 TONS 
COP,,, = 6.1 




Condenser Flow Rate 




2 
gpm/ton 


2.5 
gpm/ton 


3 gpm/ton 


4 gpm/ton 


5 gpm/ton 


6 gpm/ton 


Leaving chilled water 
temperature (°F) 


Entering Condenser 
Water Temperature (°F) 


Lift^ 
(°F) 


Required COP and IPLV 


46 


75 


29 


6.80 


7.11 


7.35 


7.71 


7.97 


8.16 


45 


75 


30 


6.71 


6.99 


7.21 


7.55 


7.78 


7.96 


44 


75 


31 


6.61 


6.89 


7.09 


7.40 


7.61 


7.77 


43 


75 


32 


6.52 


6.79 


6.98 


7.26 


7.45 


7.60 


42 


75 


33 


6.43 


6.69 


6.87 


7.13 


7.31 


7.44 


41 


75 


34 


6.33 


6.60 


6.77 


7.02 


7.18 


7.30 


46 


80 


34 


6.33 


6.60 


6.77 


7.02 


7.18 


7.30 


40 


75 


35 


6.23 


6.50 


6.68 


6.91 


7.06 


7.17 


45 


80 


35 


6.23 


6.50 


6.68 


6.91 


7.06 


7.17 


44 


80 


36 


6.13 


6.41 


6.58 


6.81 


6.95 


7.05 


43 


80 


37 


6.02 


6.31 


6.49 


6.71 


6.85 


6.94 


42 


80 


38 


5.90 


6.21 


6.40 


6.61 


6.75 


6.84 


41 


80 


39 


5.77 


6.11 


6.30 


6.52 


6.65 


6.74 


46 


85 


39 


5.77 


6.11 


6.30 


6.52 


6.65 


6.74 


40 


80 


40 


5.63 


6.00 


6.20 


6.43 


6.56 


6.65 


45 


85 


40 


5.63 


6.00 


6.20 


6.43 


6.56 


6.65 


44 


85 


41 


5.47 


5.87 


6.10 


6.33 


6.47 


6.55 


43 


85 


42 


5.30 


5.74 


5.98 


6.24 


6.37 


6.46 


42 


85 


43 


5.11 


5.60 


5.86 


6.13 


6.28 


6.37 


41 


85 


44 


4.90 


5.44 


5.72 


6.02 


6.17 


6.27 


40 


85 


45 


4.68 


5.26 


5.58 


5.90 


6.07 


6.17 


Condenser AT'' 


14.04 


11.23 


9.36 


7.02 


5.62 


4.68 



For SI: °C = [(°F) - 32] / 1.8, 1 gallon per minute = 3.785 L/min., I ton = 12,000 British thermal unit 

a. Lift = Entering condenser water temperature (°F) - Leaving chilled water temperature (°F). 

b. Condenser AT = Leaving condenser water temperature (°F) - Entering condenser water temperature 
K^dj = 6.1507 - 0.30244(X) + 0.0062692(X)^ - 0.000045595(X) 

where: X = Condenser AT + Lift 
COP,,^^K,,,xCOP,, 



per hour = 3.517 kW. 
(°F). 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



ACCEPTABLE PRACT8CE FOR COMMERCIAL BUILDING 



TABLE 803.3.2(6) 
PERFORMANCE REQUIREMENTS FOR HEAT REJECTION EQUIPMENT 




EQUIPMENT TYPE 


TOTAL SYSTEM HEAT 
REJECT10^S CAPACITY 
AT RATED CONDITIONS 


SUBCATEGORY OR RATING CONDITION 


PERFORMANCE 
REQUIRED^'" 


TEST 
PROCEDURE'' 


Propeller or axial fan cooling towers 


All 


95°F entering water 

85°F leaving water 

75°F wb outdoor air 


>38.2gpm/hp 


CTI ATC-105 

and 
CTI STD-201 


Centrifugal fan cooling towers 


All 


95°F entering water 
85°F leaving water 
75°F wb outdoor air 


> 20.0 gpm/hp 


CTIATC-105 

and 
CTI STD-201 


Air-cooled condensers 


All 


125°F condensing temperature 
R-22 test fluid 

190°F entering gas temperature 
15°F subcooling 
95°F entering db 


> 176,000 
Btu/h-hp 
(69 COP) 


ARI460 



For SI: °C = [ (°F) - 32 ]/ 1.8, 1 British thermal unit per hour = 0.293 IW, 1 gallon per minute per horsepower = 0.846 L/s • kW. 
wb = wet-bulb temperature, °F 

a. For purposes of this table, cooling tower performance is defined as the maximum flow rating of the tower units (gpm) divided by the fan nameplate rated motor 
power units (hp). 

b. For purposes of this table, air-cooled condenser performance is defined as the heat rejected from the refrigerant units (Btu/h) divided by the fan nameplate rated 
motor power units (hp). 

c. Chapter 10 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. 



8033.3 HVAC system controls. Each heating and cooling 
system shall be provided with thermostatic controls as re- 
quired in Sections 803.3.3.1 through 803.3.3.5. 

§03.3,3,1 Thermostatic controls. The supply of heating 
and cooling energy to each zone shall be controlled by in- 
dividual thermostatic controls capable of responding to 
temperature within the zone. Where humidification or 
dehumidification or both is provided, at least one humid- 
ity control device shall be provided for each humidity 
control system 

Exceptloms Independent perimeter systems that are 
designed to offset only building envelope heat losses 
or gains or both serving one or more perimeter zones 
also served by an interior system provided: 

1 . The perimeter system includes at least one ther- 
mostatic control zone for each building expo- 
sure having exterior walls facing only one 
orientation (within +1- 45 degrees) (0.8 rad) for 
more than 50 contiguous feet (15.2 m); and, 

2. The perimeter system heating and cooling sup- 
ply is controlled by a thermostat(s) located 
within the zone(s) served by the system. 

803.3,3.1.1 Heat pemp supplementary heat. Heat 
pumps having supplementary electric resistance heat 
shall have controls that, except during defrost, prevent 
supplementary heat operation when the heat pump 
can meet the heating load. 

803,3.3,2 Set poisit overlap restriction. Where used to 
control both heating and cooling, zone thermostatic con- 
trols shall provide a temperature range or deadband of at 
least 5°F (A2.8°C) within which the supply of heating 



and cooling energy to the zone is capable of being shut 
off or reduced to a minimum. 



as Thermostats requiring manual change- 
over between heating and cooling modes. 

803.3.3,3 Offf=lioer controls. Each zone shall be pro- 
vided with thermostatic setback controls that are con- 
trolled by either an automatic time clock or 
programmable control system. 



1 . Zones that will be operated continuously. 

2. Zones with a full HVAC load demand not ex- 
ceeding 6,800 Btu/h (2 kW) and having a 
readily accessible manual shutoff switch. 



Thermostatic setback controls shall have the capabil- 
ity to set back or temporarily operate the system to 
maintain zone temperatures down to 55°F (13°C) or 
up to 85°F (29°C). 

803,3.3.3.2 Automatic setback and shutdown ca- 
pabilities. Automatic time clock or programmable 
controls shall be capable of starting and stopping the 
system for seven different daily schedules per week 
and retaining their programming and time setting dur- 
ing a loss of power for at least 10 hours. Additionally, 
the controls shall have: a manual override that allows 
temporary operation of the system for up to 2 hours; a 
manually operated timer capable of being adjusted to 
operate the system for up to 2 hours; or an occupancy 
sensor. 



Both outdoor air 
supply and exhaust ducts shall be equipped with gravity 



2003 BMTERNATIONAL ENERGY CONSERVATBON CODH 



69 



ACCEPTABLE PRACTSCE FOR COMMERCIAL BUILDWGS 



or motorized dampers that will automatically shut when 
the systems or spaces served are not in use. 

Exception: Individual supply systems with a design 
airflow rate of 3,000 cfm (1416 L/s) or less. 

803.3.3.5 Economizers. Economizers shall be provided 
on each system with a cooling capacity greater than 
65,000 Btu/h (19 kW) in accordance with Section 
803.2.6. 

Exceptions s 

1. Water economizers that are capable of cooling 
supply air by direct or indirect evaporation or 
both and providing up to 100 percent of the ex- 
pected system cooling load at outside air tem- 
peratures of 50°F (10°C) dry bulb/45°F (7°C) 
wet bulb and below. 

2. Systems with a cooling capacity less than 
135,000 Btu/h (40 kW) in Climate Zones 3c, 
5b, 7, 13b, and 14. 

803.3.3.6 Variable air volume (VAV) fan controL Indi- 
vidual VAV fans with motors of 25 horsepower (18.8 
kW) or greater shall be: 

1 . Driven by a mechanical or electrical variable speed 
drive; or 

2. The fan motor shall have controls or devices that 
will result in fan motor demand of no more than 30 
percent of their design wattage at 50 percent of de- 
sign air flow when static pressure set point equals 
one-third of the total design static pressure, based 
on manufacturer's certified fan data. 

803.3.3.7 Hydromic systems controls. The heating of 
fluids that have been previously mechanically cooled 
and the cooling of fluids that have been previously me- 
chanically heated shall be limited in accordance with 
Sections 803.3.3.7.1 through 803.3.3.7.3. Hydronic 
heating systems comprised of multiple-packaged boilers 
and designed to deliver conditioned water or steam into a 
common distribution system shall include automatic 
controls capable of sequencing operation of the boilers. 
Hydronic heating systems comprised of a single boiler 
and greater than 500,000 Btu/h input design capacity 
shall include either a muldstaged or modulating burner. 

803.3.3.7.1 Three-pipe system. Hydronic systems 
that use a common return system for both hot water 
and chilled water are prohibited. 

803.3.3.7.2 Two-pipe changeover system. Systems 
that use a common distribution system to supply both 
heated and chilled water shall be designed to allow a 
dead band between changeover from one mode to the 
other of at least 15°F (A8.3°C) outside air tempera- 
tures; be designed to and provided with controls that 
will allow operation in one mode for at least 4 hours 
before changing over to the other mode; and be pro- 
vided with controls that allow heating and cooling 
supply temperatures at the changeover point to be no 
more than 30°F (A16.7°C) apart. 



803.3.3.7.3 Hydronic (water loop) heat pump sys- 
tems Hydronic heat pumps connected to a common heat 
pump water loop with central devices for heat rejection 
and heat addition shall have controls that are capable of 
providing a heat pump water supply temperature dead 
band of at least 20°F (Al 1.1°C) between initiadon of 
heat rejection and heat addition by the central devices. 
For Climate Zones 5a to 19 as indicated in Table 
302. 1 , if a closed-circuit cooling tower is used, either 
an automatic valve shall be installed to bypass all but a 
minimal flow of water around the tower, or lower 
leakage positive closure dampers shall be provided. If 
an open-circuit tower is used directly in the heat pump 
loop, an automatic valve shall be installed to bypass 
all heat pump water flow around the tower. If an 
open-circuit cooling tower is used in conjunction with 
a separate heat exchanger to isolate the cooling tower 
from the heat pump loop, then heat loss shall be con- 
trolled by shutting down the circulation pump on the 
cooling tower loop. Each hydronic heat pump on the 
hydronic system having a total pump system power 
exceeding 10 horsepower (hp) (7.5 kW) shall have a 
two-position valve. 

Exception: Where a system loop temperature op- 
timization controller is installed and can determine 
the most efficient operating temperature based on 
real time conditions of demand and capacity, dead 
bands of less than 20°F (1 1 . 1°C) shall be permitted. 

803.3.3.7.4 Part load controls. Hydronic systems 
greater than or equal to 300,000 Btu/h (87,930 W) in 
design capacity supplying heated or chilled water to 
comfort conditioning systems shall include controls 
that have the capability to: 

1. Automatically reset the supply water tempera- 
tures using zone return water temperature, 
building return water temperature, or outside air 
temperature as an indicator of building heating 
or coohng demand. The temperature shall be 
capable of being reset by at least 25 percent of 
the design supply-to-retum water temperature 
difference; or 

2. Reduce system pump flow by at least 50 percent 
of design flow rate utihzing adjustable speed 
drive(s) on pump(s), multiple staged pumps 
where at least one-half of the total pump horse- 
power is capable of being automatically turned 
off, control valves designed to modulate or step 
down, and close, as a function of load, or other 
approved means. 



.3.3.7.5 Pump isolation. Chilled water plants in- 
cluding more than one chiller shall have the capability 
to reduce flow automatically through the chiller plant 
when a chiller is shut down. Chillers piped in series 
for the purpose of increased temperature differential, 
shall be considered as one chiller. 

Boiler plants including more than one boiler shall 
have the capability to reduce flow automatically 
through the boiler plant when a boiler is shut down. 



70 



2003 BNTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTJCE FOR COP 



Each fan powered by a motor of 7.5 hp (5 .6 kW) or larger 
shall have the capability to operate that fan at two-thirds 
of full speed or less, and shall have controls that automat- 
ically change the fan speed to control the leaving fluid 
temperature or condensing temperature/pressure of the 
heat rejection device. 

Exceptnom; Factory-installed heat rejection devices 
within HVAC equipment tested and rated in accor- 
dance with Tables 803.3.2(1) through 803.3.2(6). 



servimg meltipk zones. Sections 803.3.4.1 through 
803.3.4.3 shall apply to complex mechanical systems serv- 
ing multiple zones. Supply air systems serving multiple 
zones shall be VAV systems which, during periods of occu- 
pancy, are designed and capable of being controlled to re- 
duce primary air supply to each zone to one of the following 
before reheating, recooling or mixing takes place: 

1. Thirty percent of the maximum supply air to each 
zone. 

2. Three hundred cfm (142 L/s) or less where the maxi- 
mum flow rate is less than 10 percent of the total fan 
system supply airflow rate, 

3. The minimum ventilation requirements of Chapter 4 
of the International Mechanical Code. 



cz^ 



n; The following define when individual zones 
or when entire air distribution systems are exempted 
from the requirement for VAV control: 

1. Zones where special pressurization relationships 
or cross-contamination requirements are such that 
VAV systems are impractical. 

2. Zones or supply air systems where at least 75 per- 
cent of the energy for reheating or for providing 
warm air in mixing systems is provided from a 
site-recovered or site-solar energy source. 

3. Zones where special humidity levels are required 
to satisfy process needs. 

4. Zones with a peak supply air quantity of 300 cfm 
(142 L/s) or less and where the flow rate is less than 
10 percent of the total fan system supply airflow 
rate. 

5. Zones where the volume of air to be reheated, 
recooled or mixed is no greater than the volume of 
outside air required to meet the minimum ventila- 
tion requirements of Chapter 4 of the International 
Mechanical Code. 

6. Zones or supply air systems with thermostatic and 
humidistatic controls capable of operating in se- 
quence the supply of heating and cooling energy to 
the zone(s) and which are capable of preventing re- 
heating, recooling, mixing or simultaneous supply 
of air that has been previously cooled, either me- 
chanically or through the use of economizer sys- 
tems, and air that has been previously 
mechanically heated. 



LI Slmgle duct variable air volmme (VAV) §ys= 
ermmal devices. Single duct VAV systems shall 
use terminal devices capable of reducing the supply of 
primary supply air before reheating or recooUng takes 
place. 

803<,3o4o2 Dual dect and mixing VAV systems, termi- 
nal devices. Systems that have one warm air duct and 
one cool air duct shall use terminal devices which are ca- 
pable of reducing the flow from one duct to a minimum 
before mixing of air from the other duct takes place. 

803,3.4.3 Single fan dinal dect and mixing VAV sys= 
tems, economizers. Individual dual duct or mixing heat- 
ing and cooling systems with a single fan and with total 
capacities greater than 90,000 Btu/h [(26 375 W) 7.5 
tons] shall not be equipped with air economizers. 

803,3.5 Ventilation. Ventilation shall be in accordance with 
Section 803.2.5. 



^)Ienem Insiiilatnoiii and sealing. All 
ducts and plenums shall be insulated and sealed in accor- 
dance with Section 803.2.8. 

Ducts designed to operate at static pressures in excess of 3 
inches w.g. (746 Pa) shall be leak-tested in accordance with 
the SMACNA HVAC Air Duct Leakage Test Manual with 
the rate of air leakage {CL) less than or equal to 6.0 as deter- 
mined in accordance with Equation 8-2. 

CL = FxP 0-65 (Equation 8=2) 

where: 

F = The measured leakage rate in cfm per 100 square 
feet of duct surface. 

P = The static pressure of the test. 

Documentation shall be furnished by the designer dem- 
onstrating that representative sections totaling at least 25 
percent of the duct area have been tested and that all tested 
sections meet the requirements of this section. 

803,3,7 Piping insolation. All piping serving as part of a 
heating or cooling system shall be thermally insulated in ac- 
cordance with Table 803.3.7. 



1 . Factory-installed piping within HVAC equipment 
tested and rated in accordance with a test proce- 
dure referenced by this code. 

2. Piping that conveys fluids that have a design oper- 
ating temperature range between 55°F (13°C) and 
105°F(41°C). 

3. Piping that conveys fluids that have not been 
heated or cooled through the use of fossil fuels or 
electric power. 

4. Runout piping not exceeding 4 feet (1219 mm) in 
length and 1 inch (25 mm) in diameter between the 
control valve and HVAC coil. 



. Prior to the issuance of 
a certificate of occupancy, the design professional shall pro- 
vide evidence of system completion in accordance with 
Sections 803.3.8.1 through 803.3.8.3. 



2003 DNTERWATiOWAL EWERGY CONSERVATDOBSS CODE 



71 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 803.3.7 

MINIMUM PIPE INSULATION^ 

(thickness in inches) 



FLUID 


NOMINAL PIPE DIAMETER 


< 1.5" 


>1.5" 


Steam 


1% 


3 


Hot water 


1 


2 


Chilled water, brine or refrigerant 


1 


1'/; 



For SI: 1 inch = 25.4 mm, British thermal unit per inch/h • ft^ • °F = W per 25 mm/K • m^. 
a. Based on insulation having a conductivity (k) not exceeding 0.27 Btu per inch/h • ft^ • °F. 



803.3.8.1 Air system balancing. Each supply air outlet 
and zone terminal device shall be equipped with means 
for air balancing in accordance with the requirements of 
Chapter 6 of the International Mechanical Code. Dis- 
charge dampers are prohibited on constant volume fans 
and variable volume fans with motors 25 hp (18.6 kW) 
and larger. 

803.3.8.2 Hydronic system balancing. Individual 
hydronic heating and coohng coils shall be equipped 
with means for balancing and pressure test connections. 

803.3.8.3 Manuals. The construction documents shall 
require that an operating and maintenance manual be 
provided to the building owner by the mechanical con- 
tractor. The manual shall include, at least, the following: 

1. Equipment capacity (input and output) and re- 
quired maintenance actions. 

2. Equipment operation and maintenance manuals. 

3. HVAC system control maintenance and calibra- 
tion information, including wiring diagrams, sche- 
matics, and control sequence descriptions. 
Desired or field-determined setpoints shall be per- 
manently recorded on control drawings, at control 
devices or, for digital control systems, in program- 
ming comments. 

4. A complete written narrative of how each system is 
intended to operate. 

803.3.9 Heat recovery for service water heating. Con- 
denser heat recovery shall be installed for heating or reheat- 
ing of service hot water provided the facility operates 24 
hours a day, the total installed heat capacity of water-cooled 
systems exceeds 6,000,000 Btu/hr of heat rejection, and the 
design service water heating load exceeds 1 ,000,000 Btu/h. 

The required heat recovery system shall have the capacity 
to provide the smaller of: 

1 . Sixty percent of the peak heat rejection load at design 
conditions; or 

2. The preheating required to raise the peak service hot 
water draw to 85 °F (29 °C). 

Exceptions: 

1 . Facilities that employ condenser heat recovery for 
space heating or reheat purposes with a heat recov- 



ery design exceeding 30 percent of the peak 
water-cooled condenser load at design conditions. 

2. Facilities that provide 60 percent of their service 
water heating from site solar or site recovered en- 
ergy or from other sources 



SECTiON 804 
SERVICE WATER HEATING 

1.1 General. This section covers the minimum efficiency of, 
and controls for, service water-heating equipment and insula- 
tion of service hot water piping. 



1.2 Service water-heating equipment performance effi- 
ciency. Water-heating equipment and hot water storage tanks 
shall meet the requirements of Table 804.2. The efficiency shall 
be verified through data furnished by the manufacturer or 
through certification under an approved certification program. 

804.3 Temperature controls. Service water-heating equip- 
ment shall be provided with controls to allow a setpoint of 
1 10°F (43 °C) for equipment serving dwelling units and 90°F 
(32°C) for equipment serving other occupancies. The outlet 
temperature of lavatories in public facility rest rooms shall be 
limited to 110°F(43°C). 

804.4 Heat traps. Water-heating equipment not supplied with 
integral heat traps and serving noncirculating systems shall be 
provided with heat traps on the supply and discharge piping as- 
sociated with the equipment. 

804.5 Pipe Insulation. For automatic-circulating hot water 
systems, piping shall be insulated with 1 inch (25 mm) of 
insulation having a conductivity not exceeding 0.27 Btu per 
inch/h • ft2 • °F (1.53 W per 25 mm/m^ • K). The first 8 feet 
(2438 mm) of piping in noncirculating systems served by 
equipment without integral heat traps shall be insulated with 
0.5 inch (12.7 mm) of material having a conductivity not 
exceeding 0.27 Btu per inch/h • ft^ • °F(1.53Wper25mm/m2 
•K). 

804.6 Hot water system controls. Automatic-circulating hot 
water system pumps or heat trace shall be arranged to be conve- 
niently turned off automatically or manually when the hot wa- 
ter system is not in operation. 



72 



2003 iNTERMATSONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCDAL BUSLDIMG 





TABLE ©04.2 
MDMIMUM PERFORMAiSSCE OF WATER-HEATING EQUBPMENT 




EQU8PMENTTYPE 


SIZE CATEGORY 
(input) 


SUBCATEGORY OR 
RATDhSG COMDiTlON 


PERFORMANCE REQUIRED" 


TEST 
PROCEDURE 


Water heaters, Electric 


< 12 kW 


Resistance 


0.93 - 0.00132V; EF 


DOE 10 CFR 
Part 430 


> 12 kW 


Resistance 


1.73V+ 155 SL, Btu/h 


ANSI Z21. 10.3 


< 24 amps and 
< 250 volts 


Heat pump 


0.93 - 0.00132V: EF 


DOE 10 CFR 

Part 430 


Storage water heaters, Gas 


< 75,000 Btu/h 


> 20 gal 


0.62 - 0.0019K EF 


DOE 10 CFR 
Part 430 


> 75,000 Btu/h and 
< 155,000 Btu/h 


< 4,000 Btu/h/gal 


80%£, 
(q / 800 + 1 loVvl SL, Btu/h 


ANSI Z21. 10.3 


> 155,000 Btu/h 


< 4,000 Btu/h/gal 


80%£, 
f Q / 800 + 1 loVv) SL, Btu/h 


Instantaneous water heaters, Gas 


> 50,000 Btu/h and 
< 200,000 Btu/h" 


> 4,000 (Btu/h)/gal and < 2 gal 


0.62- 0.001 9V^EF 


DOE 10 CFR 
Part 430 


> 200,000 Btu/h 


> 4,000 Btu/h/gal and < 10 gal 


80% £, 


ANSI Z2 1.10.3 


> 200,000 Btu/h 


> 4,000 Btu/h/gal and > 10 gal 


SO%K 
(q / 800 + 1 loVv) SL, Btu/h 


Storage water heaters, Oil 


< 105,000 Btu/h 


> 20 gal 


0.59 - 0.0019V, EF 


DOE 10 CFR 

Part 430 


> 105,000 Btu/h 


< 4,000 Btu/h/gal 


1S%K 
(q 1 800 + 1 loVn SL, Btu/h 


ANSI Z2 1.10.3 


Instantaneous water heaters. Oil 


< 210,000 Btu/h 


> 4,000 Btu/h/gal and < 2 gal 


0.59 - 0.0019K EF 


DOE 10 CFR 

Part 430 


> 210,000 Btu/h 


> 4,000 Btu/h/gal and < 10 gal 


80% E, 


ANSI Z2 1.1 0.3 


> 210,000 Btu/h 


> 4,000 Btu/h/gal and > 10 gal 


78%£. 
(q / 800 + 1 loVvj SL, Btu/h 


Hot water supply boilers, 
Gas and Oil 


> 300,000 Btu/h and 
<12,500,000 Btu/h 


> 4,000 Btu/h/gal and < 10 gal 


80% E, 


ANSI Z2 1.1 0.3 


Hot water supply boilers. 
Gas and Oil 


> 4,000 Btu/h/gal and > 10 gal 


f Q / 800 + 1 loVv) SL, Btu/h 


Pool heaters. 
Gas and Oil 


All 


— 


78% E, 


ASHRAE 146 


Unfired storage tanks 


All 




< 6.5 Btu/h • ft2 


(none) 



For SI: °C = [(°F) - 32] / 1.8, I British thermal unit per hour = 0.2931 W, 1 gallon = 3.785 L, 1 British thermal unit per hour per gallon = 0.078 W/L. 
a . Energy factor (EF) and thermal efficiency (£,) are minimum requirements. In the EF equation, V is the rated volume in gallons 

b. Standby loss (SL) is the maximum Btu/h based on a nominal 70°F temperature difference between stored water and ambient requirements. In the SL equation, Q is 
the nameplate input rate in Btu/h. In the SL equation for electric water heaters, V is the rated volume in gallons. In the SL equation for oil and gas water heaters and 
boilers, V is the rated volume in gallons. 

c. Instantaneous water heaters with input rates below 200,000 Btu/h must comply with these requirements if the water heater is designed to heat water to tempera- 
mresl80°F or higher. 



2003 BMTERWAT80NAL ENERGY COiMSERVATlON CODI 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



SECTION 805 
ELECTRICAL POWER AND LIGHTING SYSTEMS 

805.1 General. This section covers lighting system controls, 
the connection of ballasts, the maximum hghting power for in- 
terior applications, and minimum acceptable lighting equip- 
ment for exterior apphcations. 

I Exception: Lighting within dweUing units. 

805.2 Lighting controls. Lighting systems shall be provided 

I with controls as required in Sections 805.2.1, 805.2.2 and 
805.2.3. 

805.2.1 Interior lighting controls. Each area enclosed by 
walls or floor-to-ceiling partitions shall have at least one 
manual control for the lighting serving that area. The re- 
quired controls shall be located within the area served by the 
controls or be a remote switch that identifies the lights 
served and indicates their status. 

Exceptions: 

1 . Areas designated as security or emergency areas 
that must be continuously lighted. 

2. Lighting in stairways or corridors that are elements 
of the means of egress. 

805.2.2 Additional controls. Each area that is required to 
have a manual control shall have additional controls that 
meet the requirements of Sections 805.2.2.1, 805.2.2.2 and 
805.2.2.3. 

Exceptions: 

1 . Areas that have only one luminaire. 

2. Areas that are controlled by an occupant-sensing 
device. 

3. Corridors, storerooms, restrooms or public lob- 
bies. 

805.2.2.1 Light reduction controls. Each area that is re- 
quired to have a manual control shall also allow the occu- 
pant to reduce the connected lighting load in a reasonably 
uniform illumination pattern by at least 50 percent. 
Lighting reduction shall be achieved by one of the fol- 
lowing or other approved method: 

1. Controlling all lamps or luminaries; 

2. Dual switching of alternate rows of luminaires, al- 
ternate luminaires or alternate lamps; 

3. Switching the middle lamp luminaires independ- 
ently of the outer lamps; or 

4. Switching each luminaire or each lamp. 
Exceptions: 

1. Areas that have only one luminaire. 

2. Areas that are controlled by an occupant-sens- 
ing device. 

3. Corridors, storerooms, restrooms or public lob- 
bies. 

4. Guestrooms. 

5. Spaces that use less than 0.6 Watts per square 
foot (6.5 W/m). 



805.2.2.2 Automatic lighting shutoff. Buildings larger 
than 5,000 square feet (465 m^) shall be equipped with an 
automatic control device to shut off lighting in those ar- 
eas. This automatic control device shall function on ei- 
ther: 

1 . A scheduled basis, using time-of-day, with an in- 
dependent program schedule that controls the inte- 
rior hghting in areas that do not exceed 25,000 
square feet (2323 m^) and are not more than one 
floor; or 

2. An unscheduled basis by occupant intervention. 

805.2.2.2.1 Occupant override. Where an automatic 
time switch control device is installed to comply with 
Section 805.2.2.2, Item 1, it shall incorporate an over- 
ride switching device that: 

1. Is readily accessible. 

2. Is located so that a person using the device can 
see the hghts or the area controlled by that 
switch, or so that the area being lit is annunci- 
ated. 

3. Is manually operated. 

4. Allows the lighting to remain on for no more 
than 2 hours when an override is initiated. 

5. Controls an area not exceeding 5,000 square 
feet (465 m^). 

Exceptions: 

1. In malls and arcades, auditoriums, sin- 
gle-tenant retail spaces, industrial facilities 
and arenas, where captive-key override is 
utilized, override time may exceed 2 hours. 

2. In malls and arcades, auditoriums, sin- 
gle-tenant retail spaces, industrial facilities 
and arenas, the area controlled may not ex- 
ceed 20,000 square feet (1860 m^). 

805.2.2.2.2 Holiday scheduling. If an automatic time 
switch control device is installed in accordance with 
Section 805.2.2.2, Item 1, it shall incorporate an auto- 
matic holiday scheduling feature that turns off all 
loads for at least 24 hours, then resumes the normally 
scheduled operation. 

Exception: Retail stores and associated malls, res- 
taurants, grocery stores, churches and theaters. 

805.2.2.3 Guestrooms. Guestrooms in hotels, motels, 
boarding houses or similar buildings shall have at least 
one master switch at the main entry door that controls all 
permanently wired lighting fixtures and switched recep- 
tacles, except those in the bathroom(s). Suites shall have 
a control meeting these requirements at the entry to each 
room or at the primary entry to the suite. 

805.2.3 Exterior lighting controls. Automatic switching or 
photocell controls shall be provided for all exterior lighting 
not intended for 24-hour operation. Automatic time 
switches shall have a combination seven-day and seasonal 
daylight program schedule adjustment, and a minimum 
4-hour power backup. 



74 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUBLDDMG 



805.3 Taumdeimi wirlEg. The following luminaires located 
within the same area shall be tandem wired: 

1 . Flourescent luminaires equipped with one, three or odd- 
numbered lamp configurations, that are recess-mounted 
within 10 feet (3048 mm) center-to-center of each other. 

2. Flourescent luminaires equipped with one, three or any 
other odd-numbered lamp configuration, that are pen- 
dant- or surface-mounted within 1 foot (305 mm) 
edge-to-edge of each other. 



1 . Where electronic high-frequency ballasts are used. 

2. Luminaires on emergency circuits. 

3. Luminaires with no available pair in the same area. 

805.4 Exit sngES. Internally illuminated exit signs shall not ex- 
ceed 5 Watts per side. 

805.5 ImterDor Inglhtmg power reqiinrememiltSo A building 
complies with this section if its total connected lighting power 
calculated under Section 805.5. 1 is no greater than the interior 
lighting power calculated under Section 805.5.2. 

805.5.1 Total connmected Smterior llghtimig power. The total 
connected interior lighting power (Watts) shall be the sum of 
the watts of all interior lighting equipment as determined in 
accordance with Sections 805.5.1.1 through 805.5.1.4. 

Exceptioes; The connected power associated with the 
following lighting equipment is not included in calculat- 
ing total connected lighting power. 

1 . Specialized medical, dental and research lighting. 

2. Professional sports arena playing field lighting. 

3. Display lighting for exhibits in galleries, museums 
and monuments. 

4. Guestroom lighting in hotels, motels, boarding 
houses or similar buildings. 

5. Emergency lighting automatically off during nor- 
mal building operation. 

805.5.1.1 Screw lamp InoMers. The wattage shall be the 
maximum labeled wattage of the luminaire. 



805.5.1.2 Low= voltage llghtnEg. The wattage shall be 
the specified wattage of the transformer supplying the 
system. 

805.5.1.3 Other lemtmaires. The wattage of all other 
lighting equipment shall be the wattage of the lighting 
equipment verified through data furnished by the manu- 
facturer or other approved sources. 



.1,4 Lime- voltage Mghtimg track amd plmg-m 
The wattage shall be the greater of the wattage 
of the luminaires determined in accordance with Sec- 
tions 805.5.1.1 through 805.5.1.3 or 30 W/linear foot 
(98W/lin m). 



The interior lighting 
power shall be calculated using Section 805.5.2.1 or 
805.5.2.2 as apphcable. 



805.5.2.1 Emtire buiidiEg mellnod. Under this ap- 
proach, the interior lighting power (Watts) is the value 
from Table 805.5.2 for the building type times the condi- 
tioned floor area of the entire building. The interior light- 
ing power (Watts) shall not be increased by the 
allowances contained in the footnotes of Table 805.5.2 
when using the entire building method. 

805.5.2.2 Teeamt area or portioe off toeildlKg method. 
The total interior lighting power (Watts) is the sum of all 
interior lighting powers for all areas in the building cov- 
ered in this permit. The interior hghting power is the con- 
ditioned floor area for each area type listed in Table 
805.5.2 times the value from Table 805.5.2 for that area. 
For the purposes of this method, an "area" shall be de- 
fined as all contiguous spaces that accommodate or are 
associated with a single area type as listed in Table 
805.5.2. When this method is used to calculate the total 
interior lighting power for an entire building, each area 
type shall be treated as a separate area. 

805.6 Exterior lightleg. When the power for exterior lighting 
is supplied through the energy service to the building, all exte- 
rior hghting, other than low-voltage landscape hghting, shall 
have a source efficacy of at least 45 lumens per Watt. 



ni.° Where approved because of historical, safety, 
signage or emergency considerations. 

805.7 Electrical energy coinsnimptioim. In buildings having in- 
dividual dwelling units, provisions shall be made to determine 
the electrical energy consumed by each tenant by separately 
metering individual dwelling units. 



TOmL 

806.1 Gemeral. The proposed design compUes with this sec- 
tion where annual energy costs of the proposed design as deter- 
mined in accordance with Section 806.3 do not exceed those of 
the standard design as determined in accordance with Section 
806.4. 

806.2 Amalysis procederes. Sections 806.2.1 through 806.2.8 
shall be applied in determining total building performance. 

806,2.1 Energy analysis. Annual (8,760 hours) energy 
costs for the standard design and the proposed design shall 
each be determined using the same approved energy analy- 
sis simulation tool. 



The climate data used in the energy 
analysis shall cover a full calendar year (8,760 hours) and 
shall reflect approved coincident hourly data for tempera- 
ture, solar radiation, humidity and wind speed for the build- 
ing location. 

806,2,3 Energy rates. The annual energy costs shall be esti- 
mated using energy rates published by the serving energy 
supplier and which would apply to the actual building or 
DOE State-Average Energy Prices pubUshed by DOE's En- 
ergy Information Administration and which would apply to 
the actual building. 



2003 SNTERNATDOWAL ENERGY COB^SERVATION CODE'' 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 805.5.2 
INTERIOR LIGHTING POWER 



BUILDING OR AREA TYPE 


ENTIRE BUILDING 


TENANT AREA OR PORTION OF BUILDING 
(W/ft^) 


Auditorium 


Not Applicable 


1.8 


Automotive facility 


0.9 


Not Applicable 


Bank/financial institution" 


Not Applicable 


1.5 


Classroom/lecture hall " 


Not Applicable 


1.4 


Convention, conference or meeting center " 


1.2 


1.3 


Corridor, restroom, support area 


Not Applicable 


0.9 


Courthouse/town hall 


1.2 


Not Applicable 


Dining " 


Not Applicable 


0.9 


Dormitory 


1.0 


NA 


Exercise center" 


1.0 


0.9 


Exhibition hall 


Not Applicable 


1.3 


Grocery store' 


1.5 


1.6 


Gymnasium playing surface 


Not Applicable 


1.4 


Hotel function" 


1.0 


1.3 


Industrial work, < 20-foot ceiling height 


Not Applicable 


1.2 


Industrial work, > 20-foot ceiling height 


Not Applicable 


1.7 


Kitchen 


Not Applicable 


1.2 


Library " 


1.3 


1.7 


Lobby — hotel " 


Not Applicable 


1.1 


Lobby — other " 


Not Applicable 


1.3 


Mall, arcade, or atrium 


Not Applicable 


0.6 


Medical and clinical care "'' 


1.2 


1.2 


Motel 


1.0 


Not Applicable 


Multifamily 


0.7 


Not Applicable 


Museum'' 


1.1 


1.0 


Office' 


1.0 


1.1 


Parking garage 


0.3 


Not Applicable 


Penitentiary 


1.0 


Not Applicable 


Police/fire station 


1.0 


Not Applicable 


Post office 


1.1 


Not Applicable 


Religious worship " 


1.3 


2.4 


Restaurant ' 


1.6 


0.9 


Retail sales, wholesale showroom" 


1.5 


1.7 


School 


1.2 


Not Applicable 


Storage, industrial and commercial 


0.8 


0.8 


Theaters — motion picture 


1.2 


1.2 


Theaters — performance " 


1.6 


2.6 


Transportation 


1.0 


Not Applicable 


Other 


0.6 


1.0 



For SI: 1 foot = 304.8 mm, 1 Watts per square foot = W/0.0929 ml 

a. Where lighting equipment is specified to be installed for decorative appearances in addition to lighting equipment specified for general lighting and is switched or 
dimmed on circuits different from the circuits for general lighting, the smaller of the actual wattage of the decorative lighting equipment or 1 .0 W/ft^ times the area 
of the space that the decorative lighting equipment is in shall be added to the interior lighting power determined in accordance with this line item. 

b. Where lighting equipment is specified to be installed to meet requirements of visual display terminals as the primary viewing task, the smaller of the actual wattage 
of the lighting equipment or 0.35 W/ft^ times the area of the space that the lighting equipment is in shall be added to the interior lighting power determined in accor- 
dance with this line item. 

c. Where lighting equipment is specified to be installed to highlight specific merchandise in addition to lighting equipment specified for general lighting and is 
switched or dimmed on circuits different from the circuits for general Ughting, the smaller of the actual wattage of the lighting equipment installed specifically for 
merchandise, or 1 .6 W/ft^ times the area of the specific display, or 3.9 W/ft^ times the actual case or shelf area for displaying and selling fine merchandise such as 
jewelry, fine apparel and accessories, or china and silver, shall be added to the interior lighting power determined in accordance with this line item. 

d. Where lighting equipment is specified to be installed, the smaller of the actual wattage of the lighting equipment, or 1.0 W/ft^ fimes the area of the emergency, re- 
covery, medical supply and pharmacy space shall be added to the interior lighting power determined in accordance with this line item. 



76 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACT8CE FOR COHMERCIAL BU8LDI1MG 



806o2.4 Noedepletable emergyo Nondepletable energy col- 
lected off site shall be treated and priced the same as pur- 
chased energy. Energy from nondepletable energy sources 
collected on site shall be omitted from the annual energy 
cost of the proposed design. The analysis and performance 
of any nondepletable energy system shall be determined in 
accordance with accepted engineering practice using ap- 
proved methods. 



limg operatloE. Building operation shall be 
simulated for a full calendar year (8,760 hours). Operating 
schedules shall include hourly profiles for daily operation 
and shall account for variations between weekdays, week- 
ends, holidays, and any seasonal operation. Schedules shall 
model the time-dependent variations of occupancy, illumi- 
nation, receptacle loads, thermostat settings, mechanical 
ventilation, HVAC equipment availability, service hot water 
usage, and any process loads. 



BSo The following systems and loads 
shall be modeled in determining total building performance: 
heating systems, cooling systems, fan systems, lighting 
power, receptacle loads, and process loads that exceed 1.0 
W/ft^ (W/0.0929 m^) of floor area of the room or space in 
which the process loads are located. 

ExcepMon: Systems and loads serving required emer- 
gency power only. 

806o2o7 Servke water-lieatimg systems. Service wa- 
ter-heating systems that are other than combined service hot 
water/space-heating systems shall be be omitted from the 
energy analysis provided all requirements in Section 804 
have been met. 

806<,2.8 Exterior Inghtninig. Exterior hghting systems shall 
be the same as in the standard and proposed designs. 

8063 DetermleBmig energy costs for the proposed desigOo 
Building systems and loads shall be simulated in the Proposed 
design in accordance with Sections 806.3.1 and 806.3.2. 

806.3.1 HVAC amd servke water=lieatlmg equipment., All 
HVAC and service water-heating equipment shall be simu- 
lated in the proposed design using capacities, rated efficien- 
cies and part-load performance data for the proposed 
equipment as provided by the equipment manufacturer. 

8®6o3.2 Features mot documented at time of permito If 
any feature of the proposed design is not included in the 
building permit application, the energy performance of that 
feature shall be assumed to be that of the corresponding fea- 
ture used in the calculations required in Section 806.4. 

806.4 Determining energy costs for the standard desigm. 
Sections 806.4.1 through 806.4.7 shall be used in determining 
the annual energy costs of the Standard design. 



806.4.1 Equipment efficiency. The space-heating, 
space-cooling, service water-heating, and ventilation sys- 
tems and equipment shall meet, but not exceed, the mini- 
mum efficiency requirements of Sections 803 and 804. 

806.4.2 HVAC system capacities. HVAC system capacities 
in the standard design shall be established such that no 
smaller number of unmet heating and cooling load hours 



and no larger heating and cooling capacity safety factors are 
provided than in the proposed design. 

806o4o3 Envelopeo The performance of elements of the ther- 
mal envelope of the standard design shall be determined in 
accordance with the requirements of Section 802.2 as appU- 
cable. 

806.4.4 Identical cliaracterlstics. The heating/cooling 
system zoning, the orientation of each building feature, the 
number of floors and the gross envelope areas of the stan- 
dard design shall be the same as those of the proposed de- 
sign except as modified by Section 806.4.5 or 806.4.6. 

Exception! Permanent fixed or movable external shad- 
ing devices for windows and glazed doors shall be ex- 
cluded from the standard design. 



' area. The window area of the standard de- 
sign shall be the same as the proposed design, or 35 percent 
of the above-grade wall area, whichever is less, and shall be 
distributed in a uniform pattern equally over each building 
facade. 

806.4.6 Skylight area. The skylight area of the standard de- 
sign shall be the same as the proposed design, or 3 percent of 
the gross area of the roof assembly, whichever is less. 

806.4.7 Interior lighting. The lighting power for the stan- 
dard design shall be the maximum allowed in accordance 
with Section 805.4. Where the occupancy of the building is 
not known, the lighting power density shall be 1 .5 Watts per 
square foot (16.1 W/m^). 



a. The energy analysis and supporting 
documentation shall be prepared by a registered design profes- 
sional where required by the statutes of the jurisdiction in 
which the project is to be constructed. The information docu- 
menting compliance shall be submitted in accordance with 
Sections 806.5.1 through 806.5.4 

806.5,1 Annual energy use and associated costs. The an- 
nual energy use and costs by energy source of the standard 
design and the proposed design shall be clearly indicated. 



;s. A list of the energy-re- 
lated features that are included in the proposed design and 
on which compliance with the provisions of the code are 
claimed shall be provided to the code official. This list shall 
include and prominently indicate all features that differ 
from those set forth in Section 806.4 and used in the energy 
analysis between the standard design and the proposed de- 
sign. 

806,5.3 Input and output report(s). Input and output re- 
port(s) from the energy analysis simulation program con- 
taining the complete input and output files, as applicable. 
The output file shall include energy use totals and energy 
use by energy source and end-use served, total hours that 
space conditioning loads are not met and any errors or warn- 
ing messages generated by the simulation tool as applicable. 



(§). An explanation of any er- 
ror or warning messages appearing in the simulation tool 
output shall be provided in a written, narrative format. 



2003 liSSTERMATIOMAL EWERGY CONSERVATION CODE® 



77 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(5) 
BUILDING ENVELOPE REQUIREMENTS^ ''"'""S'' ^ 



CLIMATE ZONE 1a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEWIENT 


CONDITlONAfALUE 


Skylights (fZ-factor) 


1 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


{/-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-11 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-U 


Metal purlin with thermal block 


R-19 


R-12 


Metal ptirlin without thermal block 


R-30 


R-12 


Floors over outdoor air or unconditioned space (if-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (/?-vaIue) 

Framed 


No framing 


Metal framing 


Wood framing 








i?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








i?-value cavity 


NA 


R-0 


R-0 


7?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (l/-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/■factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (if-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (/f-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-0 


R-0 


7?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


^- value continuous 


R-0 


R-0 


R-0 



(continued) 



78 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMWSERCIIAL BUILDDMG 



TABLE 802.2(5) — continued 

E REQU8RESViENTS^''"'°"9*^* ■■ CLIMATE ZOSME 1a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skyligbts (^/-factor) 


1 


Slab or below-grade wall (iJ-valoe) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


^factor 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.6 


0.7 


Roof assemblies (^-valine) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (i?-value) 
Framed 


No framing 


iVietal framing 


Wood framing 








^-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-0 


R-0 


/?- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-0 


R-0 


i?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEBflENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.3 


0.7 


0.25 < PF < 0.50 


0.4 


0.7 


PF > 0.50 


0.5 


0.7 


Roof assemblies (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


R-30 


R-17 


Floors over outdoor air or umconditionied space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (i?-value) 
Framed 


No framing 


iVietal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BIMTERNATBONAL EMERGY COWSEBVATDOM CODE 



79 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(6) 

BUILDING ENVELOPE REQUIREMENTS^ *'''°"9*'^ - CLIMATE ZONE 1b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights ((/-factor) 


1 


Slab or betow-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


i?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








i?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 


1 


Slab or below-grade wall (R-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-0 


R-0 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (/? -value) 

Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-0 


R-0 


/?- value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-0 


R-0 


/?- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


^-value continuous 


R-0 


R-0 


R-0 



(continued) 



80 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMEIRaAL BUILDIING 



TABLE 802.2(6)- 
BUILDING ENVELOPE REQUOREMEMTS^ '''^''"S^ ^ - CLIMATE ZOSME 1b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (l/-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Wiedows amd glass doors 
PF < 0.25 


SHGC 


OTactor 


0.5 




0.7 


0.25 < PF < 0.50 


0.6 




0.7 


PF > 0.50 


0.7 




0.7 


Roof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-14 


Metal joist/truss 


R-19 




R-15 


Concrete slab or deck 


NA 




R-14 


Metal purlin with thermal block 


R-25 




R-15 


Metal purlin without thermal block 


X 




R-15 


Floors over outdoor air or uncouditioinied space (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 




R-0 


Metal joist/truss 


R-0 




R-0 


Concrete slab or deck 


NA 




R-0 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 










7f-value cavity 


NA 


R-0 




R-0 


R-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










R-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/f-value cavity 


NA 


R-0 




R-0 


/?- value continuous 


R-0 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Wnedows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.7 




0.7 


Roof assemblies (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-14 


Metal joist/truss 


R-19 




R-15 


Concrete slab or deck 


NA 




R-14 


Metal purlin with thermal block 


R-25 




R-15 


Metal purlin without thermal block 


R-30 




R-15 


Floors over outdoor air or unconditioned space (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 




R-0 


Metal joist/truss 


R-0 




R-0 


Concrete slab or deck 


NA 




R-0 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 










7?-value cavity 


NA 


R-0 




R-0 


/f-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-0 




R-0 


^-value continuous 


R-0 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as appUcable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 DBSITERNATIONAL EiMERGY C05MSERVATI10N CODE* 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(7) 
BUILDING ENVELOPE REQUIREMENTS^ *'''°"9''® - CLIMATE ZONE 2a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i? -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-13 


Metal purlin with thermal block 


R-19 


R-14 


Metal purlin without thermal block 


X 


R-14 


Floors over outdoor air or unconditioned space (/{-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^- value cavity 


NA 


R-0 


R-0 


7?- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-0 


R-0 


^-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 


10 PERCENT BUT NOT GREAT! 


ER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (tZ-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


Any 


0.25 < PF < 0.50 


0.6 


Any 


PF > 0.50 


0.7 


Any 


Roof assemblies (i?-value) 

All-wood joistytruss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-13 


Metal purlin with thermal block 


R-19 


R-14 


Metal purlin without thermal block 


X 


R-14 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-0 


R-0 


y?-value continuous 


R-0 


R-0 


R-0 



(continued) 



82 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



ACCEPTABLE PRACTBCE FOR COMMERCIAL BUJLDING 



TABLE 802.2(7)— contimiyed 
fELOPE REQUfREMEWTS^ "^™"9'' ® - CLJMATE ZONE 2a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEiMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (if-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.6 


0.7 


Moof assemblies (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-13 


Metal purlin with thermal block 


R-19 


R-14 


Metal purlin without thermal block 


X 


R-14 


Floors over outdoor air or unconditioEed space (^-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (if-value) 
Framed 


No framing 


iVIetal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


^-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAW 40 PERCENT BUT WOT GREATER THAW 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEWiENT 


COWDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (^-valuie) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


{/■factor 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.6 


0.7 


Moof assemblies (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-13 


Metal purlin with thermal block 


R-19 


R-14 


Metal purlin without thermal block 


R-25 


R-14 


Floors over outdoor air or enconditioned space (i? -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-0 


R-0 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-0 


Above-grade walls (i?-valoe) 
Framed 


No framing 


iWetal framing 


Wood framing 








/?-value cavity 


NA 


R-7 


R-7 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 JNTERNATIONAL ENERGY CONSERVATDOM C0DI 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(8) 

BUILDING ENVELOPE REQUIREMENTS^ '^™"9''® - CLIMATE ZONE 2b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


1 


Slab or below-grade wall (i? -value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


Any 


Any 




0.25 < PF < 0.50 


Any 


Any 




PF > 0.50 


Any 


Any 




Roof assemblies (1? -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 




Metal joist/truss 


R-25 


R-17 




Concrete slab or deck 


NA 


R-16 




Metal purlin with thermal block 


R-25 


R-17 




Metal purlin without thermal block 


X 


R-17 




Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 




Metal joist/truss 


R-U 


R-4 




Concrete slab or deck 


NA 


R-1 




Above-grade walls (/f-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-0 


R-0 




R-\a\ue continuous 


NA 


R-0 


R-0 




CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 


R-0 




/?-value continuous 


R-0 


R-0 


R-0 




Other masonry walls 










/?-value cavity 


NA 


R-0 


R-0 




^-value continuous 


R-0 


R-0 


R-0 




WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 




ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (R-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


Any 




0.25 < PF < 0.50 


0.6 


Any 




PF>0.50 


0.7 


Any 




Roof assemblies (R-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 




Metal joist/truss 


R-25 


R-17 




Concrete slab or deck 


NA 


R-16 




Metal purlin with thermal block 


R-25 


R-17 




Metal purlin without thermal block 


X 


R-17 




Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 




Metal joist/truss 


R-11 


R-4 




Concrete slab or deck 


NA 


R-1 




Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 










/{-value cavity 


NA 


R-0 


R-0 




/?-value continuous 


NA 


R-0 


R-0 




CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 


R-0 




/?-value continuous 


R-0 


R-0 


R-0 




Other masonry walls 










/?- value cavity 


NA 


R-0 


R-0 




/?-value continuous 


R-0 


R-0 


R-0 





(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



ACCEPTABLE PRACTICE FOR COMMERCIIAL BUILDSMG 



i2.2(8) — conSmyed 

EMEBMTS^ through e . gLp 



SATE ZONE 2b 



WONDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (^-valine) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.5 




0.7 


0.25 <PF< 0.50 


0.6 




0.7 


PF > 0.50 


0.7 




0.7 


Roof assemblies (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-16 


Metal joist/truss 


R-25 




R-17 


Concrete slab or deck 


NA 




R-16 


Metal purlin with thermal block 


R-25 




R-17 


Metal purlin without thermal block 


X 




R-17 


Floors over outdoor air or enconditioned space (i?-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-1 


Above-grade walls (iJ-valme) 
Framed 


No framing 


iVietal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


i?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










i?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONNALUE 


Skylights ((/-factor) 


1 


Slab or below-grade wall (i?-valee) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.7 




0.7 


Moof assemblies (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-16 


Metal joist/truss 


R-25 




R-17 


Concrete slab or deck 


NA 




R-16 


Metal purlin with thermal block 


R-25 




R-17 


Metal purlin without thermal block 


R-30 




R-17 


Floors over oetdoor air or unconditioned space (if-valme) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-1 


Above-grade walls (i^-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


i?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










R-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTEIRMATBONAL EMERGY CONSERVATION CODS 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(9) 
BUILDING ENVELOPE REQUIREMENTS^ ^''^"S^^ - CLIMATE ZONE 3a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


1 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


lAfactor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-9 


Metal joist/truss 


R-11 


R-10 


Concrete slab or deck 


NA 


R-9 


Metal purlin with thermal block 


R-13 


R-10 


Metal purlin without thermal block 


R-25 


R-10 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joistytmss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


R-walue continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATE 


ER THAN 25 PERCENT OF ABO 


VE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (if-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-12 


Metal purlin with thermal block 


R-19 


R-13 


Metal purlin without thermal block 


R-30 


R-13 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








y?-value cavity 


NA 


R-0 


R-0 


i?- value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 



(continued) 



86 



2003 BNTERNAT80NAL ENERGY CONSERVATION CODE'^ 



ACCEPTABLE PRACTICE FOB COMMERCIAL BUILDBiSlG 



TABLE 802.2(9) — continued 
REQUIREMEMTS^ '''^°"9'^ ^ 



ZONE 



WONDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEftflENT 


CONDITION/VALUE 


Skylights (f/-fector) 


1 


Slab or below-grade wall (if -value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


W-factor 


0.5 




0.7 


0.25 < PF < 0.50 


0.6 




0.7 


PF>0.50 


0.7 




0.7 


Roof assemblies (if-valoie) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over outdoor air or enconditioeed space (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (i?-vatae) 
Framed 


No framing 


fVletal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


R-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-0 




R-0 


/?- value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEWiENT 


CONDITIONA/ALUE 


Skylights (J/-factor) 


1 


Slab or below-grade wall (if-valee) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.7 




0.7 


Roof assemblies (i?-valaiie) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over outdoor air or unconditioned space (R-vsAus) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (if-value) 
Framed 


No framing 


iVietal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


i?- value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


^-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTJCE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(10) 
BUILPJMG ENVELOPE REQUIREMENTS^ ^^^""a*^ ° - CLIMATE ZONE 3b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-12 


Metal purlin with thermal block 


R-19 


R-13 


Metal purlin without thermal block 


R-30 


R-13 


Floors over outdoor air or unconditioned space (/?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (/?-value) 
Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


^-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


i? -value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATS 


ER THAN 25 PERCENT OF ABO 


VE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


0.5 


Any 


0.25 < PF < 0.50 


0.6 


Any 


PF > 0.50 


0.7 


Any 


Roof assemblies (/f-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-12 


Metal purlin with thermal block 


R-19 


R-13 


Metal purlin without thermal block 


R-30 


R-13 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (/i-vatae) 
Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-0 


R-0 


R-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE^ 



ACCEPTABLE PRACTICE FOR COiVJMERaAL BUSLDBWG 



TABLE 802.2(110) — cootinued 
BUBLD5NG EMVELOPE IREQUIRESWJENTS^*'''*'"^'^^ ■■ CLlf 



JATE ZONE 3b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Moof assemblies (if-vafae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over oetdoor air or unconditioned space (^-valine) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-II 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-0 




R-0 


i?- value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


/?- value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-0 




R-0 


/?- value continuous 


R-0 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (^-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


W-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Moof assemblies (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over outdoor air or unconditioned space (if-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-7 




R-7 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 DJSJTEeiiMATIlOliMAL EWERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMWIERCIAL BUILDINGS 



TABLE 802.2(11) 
BUILDING ENVELOPE REQUIREMENTS^ *'^'°"9*'^ - CLIMATE ZONE 3c 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (l/-factor) 


1 


Slab or below-grade wall (/? -value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/f-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (i?-valuie) 

Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-0 


R-0 


R-va\ue continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


7?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


I 


Slab or below-grade wall (K-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


Any 


0.25 <PF< 0.50 


0.6 


Any 


PF > 0.50 


0.7 


Any 


Roof assemblies (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-ll 


R-4 


Metal joist/truss 


R-ll 


R-4 


Concrete slab or deck 


NA 


R-2 


Above-grade walls (/f-value) 
Framed 


No framing 


Metal framing 


Wood framing 








R-value. cavity 


NA 


R-ll 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE"^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDING 



TABLE 802.2(11)— conltonued 
BUILDING EiMVELOPE REQUIREMENTS^ *''''°"9'' ® - CLIMATE ZONE 3c 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skyligblts (^/-factor) 


1 


Slab or below-grade wall (if-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


iZ-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Roof assemblies (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over outdoor air or unconditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-II 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


/?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










i?- value cavity 


NA 


R-11 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


WJNDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


{/-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Koof assemblies (i?- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-38 




R-20 


Floors over outdoor air or unconditioned space (^-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-2 


Above-grade walls (i?-value) 
Framed 


No framing 


iVletal framing 


Wood framing 










i?-value cavity 


NA 


R-11 




R-11 


i?- value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-0 




R-0 


/?- value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-U 




R-11 


7?-value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE^ 



91 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(12) 
BUILDING ENVELOPE REQUIREMENTS^ "^'""S"^ « - CLIMATE ZONE 4a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (tZ-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


tZ-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Koof assemblies (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-11 


Metal joist/trass 


R-13 


R-12 


Concrete slab or deck 


NA 


R-11 


Metal purlin with thermal block 


R-19 


R-12 


Metal purlin without thermal block 


R-30 


R-12 


Floors over outdoor air or unconditioned space (/?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-3 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


i?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








7?-value cavity 


NA 


R-0 


R-0 


7?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 


1 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


0-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/{-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-12 


Metal purlin with thermal block 


R-19 


R-13 


Metal purlin without thermal block 


R-30 


R-13 


Floors over outdoor air or unconditioned space (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-3 


Above-grade walls (l?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


NA 


NA 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 



(continued) 



92 



2003 INTERNATIONAL ENERGY CONSERVATION CODE** 



ACCEPTABLE PRACTICE FOR COMMERCIAL BU8L0IMG 



TABLE 802.2(12)— coBiftonued 
BUILDIMG ENVELOPE REQUSREMENTS^"^™"^'^® ■■ CLBWIATE ZONE 4a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Wiudows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.5 




0.7 


0.25 < PF < 0.50 


0.6 




0.7 


PF > 0.50 


0.7 




0.7 


Roof assemblies (if- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-3 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-0 




R-0 


7?-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (i/-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Windows and glass doors 
PF<0.25 


SHGC 


U-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.7 




0.7 


Moof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-12 


Metal purlin with thermal block 


R-19 




R-13 


Metal purlin without thermal block 


R-30 




R-13 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-3 


Above-grade walls (if -value) 
Framed 


No framing 


iVletal framing 


Wood framing 










/?- value cavity 


NA 


R-11 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


^-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










7?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 5MTERNAT10MAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(13) 
BUILDING ENVELOPE REQUIREMENTS^ •''^"9'^® - CLIMATE ZONE 4b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDmOWVALUE 


Skylights (f/-factor) 


I 


Slab or below-grade wall (if-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-iacioT 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/{-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-4 


Above-grade walls (/?-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


7?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








7?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (^-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-4 


Metal joist/truss 


R-11 


R-4 


Concrete slab or deck 


NA 


R-4 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-0 


R-0 


R-va\ue continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDING 



TABLE 802.2(113)— confEOued 
G ENVELOPE REQUIREMENTS^ "^^"S'^® - CLIMATE ZONE 4b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (if-value) 


R-0 


Windows aed glass doors 
PF < 0.25 


SHGC 


W-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Roof assemblies (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-16 


Metal joist/truss 


R-25 




R-17 


Concrete slab or deck 


NA 




R-16 


Metal purlin with thermal block 


R-25 




R-17 


Metal purlin without thermal block 


X 




R-17 


Floors over outdoor air or EECoiniditioinied space (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-U 




R-4 


Concrete slab or deck 


NA 




R-4 


Above-grade walls (i?-valiuie) 
Framed 


No framing 


iVietal framing 


Wood framing 










7?- value cavity 


NA 


R-11 




R-11 


7?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-0 




R-0 


^-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (J/-factor) 


1 


Slab or below-grade wall (if-vaiue) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Roof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-16 


Metal joist/truss 


R-25 




R-17 


Concrete slab or deck 


NA 




R-16 


Metal purlin with thermal block 


R-25 




R-17 


Metal purlin without thermal block 


R-30 




R-17 


Floors over outdoor air or unconditioned space (if-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-4 


Metal joist/truss 


R-11 




R-4 


Concrete slab or deck 


NA 




R-4 


Above-grade walls (R-vsalue) 
Framed 


No framing 


iVletal framing 


Wood framing 










^-value cavity 


NA 


R-13 




R-11 


7?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










/f- value cavity 


NA 


R-0 




R-0 


^-value continuous 


R-0 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-11 




R-U 


R-va\ue continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIONAL ENERGY CONSERVATION CODI 



05 



ACCEPTABLE PRACTICE FOR C0MMERC8AL BUILDINGS 



TABLE 802.2(14) 
BUILDING ENVELOPE REQUIREMENTS^ "^'^"S''^ - CLIiWATE ZONE 5a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


1 


Slab or below-grade wall (if -value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


Any 


Any 


0.25 <PF< 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (if-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (if-value) 

Framed 


No framing 


Metal framing 


Wood framing 








y?-value cavity 


NA 


R-11 


R-11 


7?- value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/f-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


1 


Slab or below-grade wall (if-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


IZ-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (if-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (if-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


if-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








if-value cavity 


NA 


R-11 


R-11 


if-value continuous 


R-5 


R-0 


R-0 



(continued) 



2003 INTERNATBONAL ENERGY CONSERVATION CODE'^ 



ACCEPTABLE PRACTICE FOR COI 



ERCOAL BU8LDIWG 



TABLE 802.2(14)— cortinued 
BU8LD5MG ENVELOPE REQU8REMEMTS^**^''°"9''® - CLIMATE ZONE 5a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEIWENT 


CONDITION/VALUE 


Skylights (^-factor) 


1 


Slab or below-grade wall (iJ -value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.5 


0.7 


0.25 < PF < 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (/J-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over omtdoor air or enconditioned space (J?-valoe) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (i?-vatae) 
Framed 


No framing 


l\fletai framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (i?-valiie) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


tMactor 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


R-30 


R-17 


Floors over outdoor air or uucoiniditioiied space (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (if-value) 
Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








ft- value cavity 


NA 


R-0 


R-0 


ft-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








ft-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ft- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 IE\STEIRNATSONAL ESSJERGY CONSERVATJOM CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUELDINGS 



TABLE 802.2(15) 
BUILDING ENVELOPE REQUIREMENTS^ "^^°"9''« - CLIMATE ZONE 5b 



WINDOW AND GLAZED DOOR AREA 1 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (iZ-factor) 


1 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(Afactor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Moof assemblies (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


^- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (tZ-factor) 


1 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


0.6 


Any 


0.25 < PF < 0.50 


0.7 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (iJ- value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-5 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-5 


Above-grade walls (R-value) 

Framed 


No framing 


iVietal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


R-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-11 


R-11 


y?-value continuous 


R-5 


R-0 


R-0 



(continued) 



98 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PIRACTDCE FOR COMMERCllAL BUBLDDNG 



TABLE 802.2(1 5)— continued 
G ENVELOPE REQUIREMENTS^ *'^™"9'' * - CLaSViATE ZONE 5b 



WIWDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDmON/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (i?-vatae) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Moof assemblies (iJ-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over oetdoor air or umcoeditiomed space (i?-valaiie) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-U 




R-5 


Metal joist/truss 


R-Il 




R-6 


Concrete slab or deck 


NA 




R-5 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-U 


^-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-11 




R-U 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-11 




R-U 


/?-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


1 


Slab or below-grade wall (i?-vatae) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Roof assemblies (if-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-38 




R-20 


Floors over outdoor air or unconditioned space (iJ-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-U 




R-5 


Metal joist/truss 


R-11 




R-6 


Concrete slab or deck 


NA 




R-5 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-13 




R-U 


/?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










R-\a.\ue cavity 


NA 


R-11 




R-U 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-U 


/?-value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 IMTERNATIOMAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 





TABLE 802.2(16) 








BUILDING ENVELOPE REQUIREMENTS^ «^™"9'^ « - CLIMATE ZONE 6a 


WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (ft-value) 

All- wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-11 


R-10 


Metal joist/truss 


R-13 


R-11 


Concrete slab or deck 


NA 


R-10 


Metal purlin with thermal block 


R-19 


R-11 


Metal purlin without thermal block 


R-25 


R-11 


Floors over outdoor air or unconditioned space (if-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-7 


Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-0 


R-0 


i?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(Afactor 


0.7 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?- value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (if -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-7 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


^-value continuous 


NA 


R-0 


Fl-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 



(continued) 



100 



2003 INTERNATIONAL ENERGY CONSERVATION CODE** 



ACCEPTABLE FRACTBCE FOR COMMERCIAL BUILDIING 



TABLE 802.2(16)— continued 
BUSLDING ENVELOPE REQUIREME^8TS^*'"■°"9''® - CLIP 



re ZONE 6a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEEViENT 


CONDITION/VALUE 


Skylights (U-f&ctm) 


0.8 


Slab or below-grade wall (if-value) 


R-0 


Windows aud glass doors 
PF < 0.25 


SHGC 


U-factor 


0.5 


0.7 


0.25 <PF< 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (if-value) 
All-wood joist/truss 


Onsulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (^-value) 
All-wood joist/truss 


insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-7 


Above-grade walls (JJ-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


COWDITSONA^ALUE 


Skylights (^-factor) 


1 


Slab or below-grade wall (i?-valiuie) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


O-factOf 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (if-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


R-38 


R-20 


Floors over outdoor air or unconditioned space (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-7 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


^-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


^- value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-\a]ue cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An V?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTERNATIO 



ENERGY COMSERVATBON COE 



101 



ACCEPTABLE PRACTICE FOR COMMERCBAL BU5LDENGS 



TABLE 802.2(17) 
BUILDING ENVELOPE REQUIREMENTS^ *'^~"9'' ^ - CLIMATE ZONE 6b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEIViENT 


CONDITION/VALUE 


Skylights (f/-factor) 


1 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


{/-factor 


Any 


Any 




0.25 < PF < 0.50 


Any 


Any 




PF > 0.50 


Any 


Any 




Roof assemblies (1? -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 




Metal joist/truss 


R-25 


R-17 




Concrete slab or deck 


NA 


R-16 




Metal purlin with thermal block 


R-25 


R-17 




Metal purlin without thermal block 


X 


R-17 




Floors over outdoor air or unconditioned space (/?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-6 




Metal joist/truss 


R-11 


R-6 




Concrete slab or deck 


NA 


R-6 




Above-grade walls (/f-value) 
Framed 


No framing 


i\fletal framing 


Wood framing 










/?-value cavity 


NA 


R-11 


R-11 




y?-value continuous 


NA 


R-0 


R-0 




CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-0 


R-0 




/?-value continuous 


R-0 


R-0 


R-0 




Other masonry walls 










/?-value cavity 


NA 


R-0 


R-0 




/?-value continuous 


R-0 


R-0 


R-0 




WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


1 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.6 


Any 




0.25 < PF < 0.50 


0.7 


Any 




PF > 0.50 


Any 


Any 




Roof assemblies (i? -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 




Metal joist/truss 


R-25 


R-17 




Concrete slab or deck 


NA 


R-16 




Metal purlin with thermal block 


R-25 


R-17 




Metal purlin without thermal block 


X 


R-17 




Floors over outdoor air or unconditioned space (R-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-6 




Metal joist/truss 


R-11 


R-6 




Concrete slab or deck 


NA 


R-6 




Above-grade walls (S-value) 

Framed 


No framing 


fVietal framing 


Wood framing 










/?-value cavity 


NA 


R-11 


R-11 




R-value continuous 


NA 


R-0 


R-0 




CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-0 


R-0 




7?-value continuous 


R-0 


R-0 


R-0 




Other masonry walls 










7?-value cavity 


NA 


R-11 


R-11 




/?-value continuous 


R-5 


R-0 


R-0 





(continued) 



102 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



ACCEPTABLE PRACTICE FOR COMMERCIAL BU5LD8NG 



BUDLDDNG ENVELOPE REQUIREMENTS^ **^™"9*^ 


^ ■ CLIMATE ZONE 6b 




WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (J/-factor) 


1 


Slab or below-grade wall (iJ-value) 


R-0 


Windows aed glass doors 
FF<0.25 


SHGC 


W-factor 


0.5 


0.7 


0.25 < PF < 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Moof assembMes (i?- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or onconditioinied space (R-v&lue) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-6 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-6 


Above-grade walls (i?-value) 
Framed 


No framing 


IVJetal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


R-va\ue continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDOTION/VALUE 


Skylights ((/-factor) 


1 


Slab or below-grade wall (iJ-valee) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


{/■factor 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (i?-value) 
AU-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


R-38 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continueous insulation 


R-11 


R-6 


Metal joist/truss 


R-11 


R-6 


Concrete slab or deck 


NA 


R-6 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 








/?- value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


7?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-11 


jR-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 IINTERNATIOMAL ENERGY CONSERVATBON CODE® 



103 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(18) 
BUILDING ENVELOPE REQUIREMENTS" *^'^°"9'' ' ■ CLIMATE ZONE 7a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ([/-factor) 


0.8 


Slab or below-grade wall (If-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(Afactor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/f-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (Jf-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-8 


Metal joist/truss 


R-11 


R-9 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


7?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-0 


R-0 


R-\ahie continuous 


R-0 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREAT! 


ER THAN 25 PE 


RCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(^factor 


0.5 


0.7 


0.25 < PF < 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (/{-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-8 


Metal joist/truss 


R-11 


R-9 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*" 



ACCEPTABLE PRACTBCE FOR COIWIMIERCIAL BU8LDDWG 



TABLE 8Q2.2{1B)— continued 
BUILDBWG EWVELOPE REQUIREMENTS'' *''™"9'^ *- CLIlWi 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDmON/VALOE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (if-valne) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


fAfactor^ 


0.4 


0.7 


0.25 < PF < 0.50 


0.5 


0.7 


PF>0.50 


0.6 


0.7 


Moof assemblies (i?-valiiie) 
All- wood joist/truss 


Dnsulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-valne) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-8 


Metal joist/truss 


R-11 


R-9 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIOWVALUE 


Skylights (£/-factor) 


0.8 


Slab or below-grade wall (R-v&Me) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.3 


0.7 


0.25 < PF < 0.50 


0.4 


0.7 


PF > 0.50 


0.5 


0.7 


Roof assemblies (^- value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


R-38 


R-20 


Floors over ontdoor air or unconditioned space (iJ-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-8 


Metal joist/truss 


R-11 


R-9 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (J?-vatoe) 
Framed 


No framing 


IMetal framing 


Wood framing 








i?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?- value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. For buildings over three stories in height, the maximum [/-factor shall be 0.60. 

b. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

c. "NA" indicates the condition is not applicable. 

d. An i?-value of zero indicates no insulation is required. 

e. "Any" indicates any available product will comply. 

f. "X" indicates no complying option exists for this condition. 



2003 IMTERNATIONAL ENERGY COiMSER 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 





TABLE 802.2(19) 








BUILDING ENVELOPE REQUIREMENTS'' "'^"S'^' - CLIMATE ZONE 7b 


WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/f -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-I9 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


i?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-U 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


{/-factor 


0.5 


0.7 


0.25 < PF < 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-7 


Metal joist/truss 


R-11 


R-8 


Concrete slab or deck 


NA 


R-8 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^- value cavity 


NA 


R-11 


R-11 


i?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-\alue cavity 


NA 


R-11 


R-11 


i?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-U 


7?-value continuous 


R-5 


R-0 


R-0 



(continued) 



106 



2003 BNTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUBLDDNG 



TABLE 802.2(19) — continued 
BUDLDSiMG EWVELOPE REQUIREWiENTS" '"""S^ ' - CLIMATE ZOME 7b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or belovf-grade vyall (if-valee) 


R-0 


Windows amd glass doors 
PF < 0.25 


SHGC 


y-factor^ 


0.4 




0.7 


0.25 < PF < 0.50 


0.5 




0.7 


PF > 0.50 


0.6 




0.7 


Roof assemblies (iJ-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over outdoor air or oinicoinididoinied space (^-valoe) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-7 


Metal joist/truss 


R-U 




R-8 


Concrete slab or deck 


NA 




R-8 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-13 




R-13 


/?- value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-U 




R-11 


R-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-13 




R-11 


/?-value continuous 


R-6 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (U-f&ctor) 


0.8 


Slab or below-grade wall (iJ-vatae) 


R-0 


Windows aed glass doors 
PF < 0.25 


SHGC 


y-factor 


0.3 




0.7 


0.25 < PF < 0.50 


0.4 




0.7 


PF > 0.50 


0.5 




0.7 


Roof assemblies (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-38 




R-20 


Floors over outdoor air or uncoiniditioinied space (^-valee) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-7 


Metal joist/truss 


R-11 




R-8 


Concrete slab or deck 


NA 




R-8 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










i?-value cavity 


NA 


R-13 




R-13 


/?- value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-11 




R-U 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?- value cavity 


NA 


R-13 




R-U 


/?-value continuous 


R-6 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. For buildings over three stories in height, the maximum f/-factor shall be 0.60. 

b. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

c. "NA" indicates the condition is not apphcable. 

d. An ^- value of zero indicates no insulation is required. 

e. "Any" indicates any available product will comply. 

f. "X" indicates no complying option exists for this condition. 



2003 WTERNATIIOfySAL ENERGY CONSERVATION CODE® 



107 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(20) 
BUILDING ENVELOPE REQUIREMENTS^ *''™"9'' ^ - CLIMATE ZONE 8 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF> 0.50 


Any 


Any 


Roof assemblies (/?-vaiue) 

All- wood joist/truss 


insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (if-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-9 


Metal joist/truss 


R-11 


R-10 


Concrete slab or deck 


NA 


R-9 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R- value cavity 


NA 


R-11 


R-11 


/?- value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-11 


/?- value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (tZ-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF<0.25 


SHGC 


y-factor 


0.5 


0.7 


0.25 < PF < 0.50 


0.6 


0.7 


PF > 0.50 


0.7 


0.7 


Roof assemblies (/f -value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 


R-9 


Metal joist/truss 


R-11 


R-10 


Concrete slab or deck 


NA 


R-9 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








i?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


R-6 


R-0 


R-0 



(continued) 



108 



2003 INTERNATIONAL ENERGY CONSERVATION CODE** 



ACCEPTABLE PRACTBCE FOR COB 



\BLE 802.2(20) — confmyed 

i REQUBREMENTS3*'''°"9''® - CLIMATE ZONE 8 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCESsJT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITSON/VALUE 


Skylights (2/-factor) 


0.8 


Slab or below-grade wall (if-vatae) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 




0.5 


0.25 < PF < 0.50 


0.5 




0.5 


PF > 0.50 


0.6 




0.5 


Roof assemblies (if-vatoe) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over outdoor air or unconditioned space (^ -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-9 


Metal joist/truss 


R-11 




R-10 


Concrete slab or deck 


NA 




R-9 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-13 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










7?- value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-13 




R-11 


/?-value continuous 


R-6 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREAT! 


ER THAN 50 PE 


RCENT OF 


ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (R-v&lue) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.3 




0.5 


0.25 < PF < 0.50 


0.4 




0.5 


PF > 0.50 


0.5 




0.5 


Eoof assemblies (if-value) 
All-wood joist/truss 


[nsulatlon between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-38 




R-20 


Floors over outdoor air or unconditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-11 




R-9 


Metal joist/truss 


R-11 




R-10 


Concrete slab or deck 


NA 




R-9 


Above-grade walls (i?-value) 
Framed 


No Iframing 


Metal framing 


Wood framing 










^-value cavity 


NA 


R-13 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-11 




R-11 


7?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-13 




R-11 


7?-value continuous 


R-6 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 IMTERNATDOMAL EWERGY COIMSERVATlOiSS CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(21) 
BUILDING ENVELOPE REQUIREMENTS" '^^"S*'' - CLIMATE ZONE 9a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/■factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i? -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-13 


Metal purlin with thermal block 


R-19 


R-14 


Metal purlin without thermal block 


X 


R-14 


Floors over outdoor air or unconditioned space (if -value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-12 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-0 


R-0 


/?-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


7?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (IZ-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


Ofactor 


Any 


0.7 


0.25 < PF < 0.50 


Any 


0.7 


PF > 0.50 


Any 


0.7 


Roof assemblies (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-12 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^- value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



110 



2003 INTERMATIONAL ENERGY CONSERVATION CODE"" 



ACCEPTABLE PIRACTICE F0[R C0MSV3EIRC1AL BUiLDDNG 



TABLE 802.2(21)— coratirtuedl 
BU8LD1MG E^SVELOPE REQUBREMENTS'"''™"^'^* = CLliVlATE ZO^SE 9a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (if-vaEue) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


lAfactor^ 


0.6 


0.7 


0.25 < PF < 0.50 


0.7 


0.7 


PF > 0.50 


Any 


0.7 


Moof assemblies (i?-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconiditioned space (i?-vatae) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-12 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (if-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDmONA/ALUE 


Skylights (£/-factor) 


0.8 


Slab or below-grade wall (if-valee) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


W-factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.7 


0.5 


PF > 0.50 


0.8 


0.5 


Koof assemblies (i?-vatoe) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


R-38 


R-20 


Floors over outdoor air or emcoeditioned space (R-v&iue) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-12 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


i?-value continuous 


NA 


R-11 


R-5 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. For buildings over three stories in height, the maximum {/-factor shall be 0.60. 

b. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

c. "NA" indicates the condition is not applicable. 

d. An /?- value of zero indicates no insulation is required. 

e. "Any" indicates any available product will comply. 

f. "X" indicates no complying option exists for this condition. 



2003 BNTEBMATDOMAL ENERGY CONSERVATDOM CODE'' 



111 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDIMGS 



TABLE 802.2(22) 
BUILDING ENVELOPE REQUIREMENTS^ **^™"9'^« - CLIMATE ZONE 9b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF>0.50 


Any 


Any 


Roof assemblies (/{-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-15 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-15 


Metal purlin with thermal block 


R-25 


R-16 


Metal purlin without thermal block 


X 


R-16 


Floors over outdoor air or unconditioned space (/?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-11 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Roof assemblies (/{-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (/{-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 


R-11 


Metal joist/truss 


R-13 


R-12 


Concrete slab or deck 


NA 


R-12 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 



(continued) 



112 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*' 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUSLDING 



TABLE 802.2(22) — continued 
BODLDING ENVELOPE REQUiREMENTS^ *^"'"9'^ ^ - CLSMATE ZOWE 9b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEWiEWT 


CONDITIONA/ALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (if-value) 


R-0 


Windows aud glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.5 


0.25 <PF< 0.50 


0.5 




0.5 


PF > 0.50 


0.6 




0.5 


Roof assemblies (if-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over outdoor air or umcoinditioinied space (i?- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 




R-II 


Metal joist/truss 


R-13 




R-12 


Concrete slab or deck 


NA 




R-12 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-13 




R-11 


7?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-U 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-13 




R-U 


/?-value continuous 


R-6 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


SkyMgbts (^/-factor) 


0.8 


Slab or below-grade wall (if-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.3 




0.5 


0.25 < PF < 0.50 


0.4 




0.5 


PF>0.50 


0.5 




0.5 


Eoof assemblies (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-38 




R-20 


Floors over outdoor air or uncoinditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-13 




R-11 


Metal joist/truss 


R-13 




R-12 


Concrete slab or deck 


NA 




R-12 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 










i?-value cavity 


NA 


R-13 




R-13 


/?-value continuous 


NA 


R-5 




R-3 


CMU, > 8 inches, with integral insulation 










^-value cavity 


NA 


R-11 




R-11 


i?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-13 




R-11 


7?- value continuous 


R-6 


R-0 




R-0 



For Sr. 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTERIiMATDONAL ENERGY COWSERVATION CODE 



113 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(23) 
BUILDING ENVELOPE REQUIREMENTS^ '''™"9''« - CLIMATE ZONE 10a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF>0.50 


Any 


Any 


Roof assemblies (/? -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-I5 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-13 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-0 


R-0 


/{-value continuous 


R-0 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (fZ-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


lAfactor 


0.6 


0.7 


0.2 < PF < 0.50 


0.7 


0.7 


PF > 0.50 


Any 


0.7 , 


Roof assemblies (/{-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (/{-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-13 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-13 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 



(continued) 



U4 



2003 BNTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTBCE FOR COMMERCBAL BUILDDNG 



TABLE 802.2(23) — contorsued 
IVELOPE REQUIREMENTS^ ''"■*'"9^ ® ■ CLIEI 



FE ZONE 10a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEiWENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (i?-vatae) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.5 




0.6 


0.25 < PF < 0.50 


0.6 




0.6 


PF > 0.50 


0.7 




0.6 


Roof assemblies (iJ-vatae) 
All-wood joist/truss 


Insulation between framing 


Contlnuoys insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over oeMoor air or emcoiniditioinied space (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-13 


Metal joist/truss 


R-I9 




R-13 


Concrete slab or deck 


NA 




R-13 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










^-value cavity 


NA 


R-11 




R-11 


^-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-11 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (J/-factor) 


0.8 


Slab or below-grade wall (if -valine) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


W-factor 


0.5 




0.4 


0.25 < PF < 0.50 


0.6 




0.4 


PF > 0.50 


0.7 




0.4 


Roof assemblies (if-valne) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-30 




R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-13 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-13 


Above-grade walls (i?-value) 
Framed 


No framing 


iVietal framing 


Wood framing 










^- value cavity 


NA 


R-13 




R-11 


7?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?- value cavity 


NA 


R-11 




R-11 


/?- value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTERNATIONAL ENERGY CONSERVATB0N CODE® 



115 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(24} 
BUILDING ENVELOPE REQUIREMENTS^ '''^"S^^ - CLIMATE ZONE 10b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-18 


Concrete slab or deck 


NA 


R-17 


Metal purlin with thermal block 


R-30 


R-18 


Metal purlin without thermal block 


X 


R-18 


Floors over outdoor air or unconditioned space (if-value) 

All- wood joist/truss 


insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-13 


Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








7?- value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


i?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


lAfactor 


0.5 


0.6 


0.25 < PF < 0.50 


0.6 


0.6 


PF > 0.50 


0.7 


0.6 


Roof assemblies (/f-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-12 


Metal joist/truss 


R-19 


R-13 


Concrete slab or deck 


NA 


R-13 


Above-grade walls (/f-value) 

Framed 


No framing 


lUietai framing 


Wood framing 








^-value cavity 


NA 


R-11 


Rll 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-11 


R-11 


7?- value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



US 



2003 INTERNATIONAL ENERGY CONSERVATION CODE"" 



ACCEPTABLE PRACTBCE FOR COMMERCBAL BUlLDIliVlG 



TABLE 802.2(24) — confonyed 
eUlLDBNG ENVELOPE REQUIREMENTS^ ""'''"9'^ « ■■ CI 



lATEZOSMElOb 



WSNDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (U4&ctor) 


0.8 


Slab or below-grade wall (i? -valine) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 




0.5 


0.25 < PF < 0.50 


0.5 




0.5 


PF > 0.50 


0.6 




0.5 


Roof assemblies (iJ-value) 
All-wood joist/truss 


InsuBation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over outdoor air or emcomditioraed space (^-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-13 


Above-grade walls (i?-valee) 
Framed 


No framing 


Metai framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


7?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-11 




R-11 


y?-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skyligtots (^/-factor) 


0.8 


Slab or below-grade wall (i?-valee) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


(^factor 


0.3 




0.5 


0.25 < PF < 0.50 


0.4 




0.5 


PF > 0.50 


0.5 




0.5 


Moof assemblies (if-valee) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-30 




R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-12 


Metal joist/truss 


R-19 




R-13 


Concrete slab or deck 


NA 




R-13 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 










/?- value cavity 


NA 


R-11 




R-11 


/?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


/?- value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



^003 8NTERMATI0MAL EiMERGY CONSERVATION CODE® 



117 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(25) 
BUILDING ENVELOPE REQUIREMENTS^ **'™"9*'^ 



CLIIViATE ZONE 11a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (/?-value) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


U-iactoT 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (if-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-14 


Above-grade walls (/{-value) 

Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








7?- value cavity 


NA 


R-11 


R-11 


7?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.8 


Slab or below-grade wall (R-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/■factor 


0.6 


0.7 


0.25 < PF < 0.50 


0.7 


0.7 


PF > 0.50 


Any 


0.7 


Roof assemblies (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-14 


Concrete slab or deck 


NA 


R-14 


Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 








R-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








y?-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 



(continued) 



118 



2003 INTERWAT80NAL ENERGY CONSERVATION CODE'' 



iS^CCEPTABLE PRACTICE FOR COWiMERCBi^L BUILD8MG 



TABLE 802.2(25)- 

EMEMTS^ ''"■""S'' * - CLIMATE ZONE 11a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (R-valm) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.5 




0.6 


0.25 < PF < 0.50 


0.6 




0.6 


PF > 0.50 


0.7 




0.6 


Roof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


X 




R-20 


Floors over oetdoor air or eincoeditioned space (i?-valiue) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-14 


Metal joist/truss 


R-19 




R-14 


Concrete slab or deck 


NA 




R-14 


Above-grade walls (if-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


i?-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-11 




R-11 


^- value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


i?-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEWiENT 


CONDITOON/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (if-vatoe) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


tAfactor 


0.5 




0.4 


0.25 < PF < 0.50 


0.6 




0.4 


PF > 0.50 


0.7 




0.4 


Roof assemblies (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-19 


Metal joist/truss 


R-25 




R-20 


Concrete slab or deck 


NA 




R-19 


Metal purlin with thermal block 


R-30 




R-20 


Metal purlin without thermal block 


R-30 




R-20 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-14 


Metal joist/truss 


R-19 




R-14 


Concrete slab or deck 


NA 




R-14 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 










^-value cavity 


NA 


R-13 




R-11 


/f-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










i?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


i?-value continuous 


R-5 


R-0 




R-0 



For Sr. 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An ^-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 DNTERNATIOWAL EfMERGY CO^SSERVATDON CODE*^ 



119 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(26) 
BUILDING ENVELOPE REQUDREIVIENTS^"'^"^''^ - CLIMATE ZONE 11b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (C/-factor) 


0.8 


Slab or below-grade wall (/{-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


lAfactor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-18 


Metal purlin with thermal block 


R-30 


R-19 


Metal purlin without thermal block 


X 


R-19 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-15 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?- value cavity 


NA 


R-11 


R-11 


7?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


R-\alue. continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ([/-factor) 


0.8 


Slab or below-grade wall (R-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


0.6 


0.25 < PF < 0.50 


0.6 


0.6 


PF > 0.50 


0.7 


0.6 


Roof assemblies (if- value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-15 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








^- value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-11 


R-11 


R-value continuous 


R-5 


R-0 


R-0 



(continued) 



120 



2003 BNTERMAT80NAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACUCE FOR COMMERCDAL B 



TABLE 802.2(26) — confmued 
BUILDING ENVELOPE REQUSREMENTS^ *''''°"9^ « - CLIMATE ZONE 11b 



WONDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (£/-factor) 


0.8 


Slab or below-grade wall (i?-vatae) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


(/■factor 


0.4 


0.5 


0.25 <PF< 0.50 


0.5 


0.5 


PF > 0.50 


0.6 


0.5 


Roof assemblies (if-valee) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over oetdoor air or MmcoHditioiied space (i?-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-15 


Above-grade walls (if-value) 
Framed 


No framing 


iVletal framing 


Wood framing 








^-value cavity 


NA 


R-11 


R-II 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








i?-value cavity 


NA 


R-U 


R-11 


7?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skyligbts (f/-factor) 


0.8 


Slab or below-grade wall (if-value) 


R-8 


Windows amd glass doors 
PF < 0.25 


SHGC 


U-factor 


0.3 


0.5 


0.25 < PF < 0.50 


0.4 


0.5 


PF > 0.50 


0.5 


0.5 


Roof assemblies (if-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-30 


R-24 


Metal purlin without thermal block 


R-38 


R-24 


Floors over outdoor air or uecomiditioned space (^-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-15 


Above-grade walls (^-valoe) 
Framed 


Mo framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-U 


R-U 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-U 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 liMTERNATlONAL ENERGY CONSERVATtON COOE*^ 



121 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(27) 
BUILDING ENVELOPE REQUIREMENTS^ *^™"9''^ - CLIMATE ZONE 12a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (S-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


(/■factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (iJ -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








R-va\ue cavity 


NA 


R-11 


Fl-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


7?- value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.6 


0.6 


0.25 < PF < 0.50 


0.7 


0.6 


PF > 0.50 


Any 


0.6 


Roof assemblies (/f-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


R-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








i?-va)ue cavity 


NA 


R-11 


R-11 


i?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








R-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



122 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'= 



ACCEPTABLE PRACTICE FOR COMMERCJAL BUILDBSMG 



TABLE 802.2(27)— continued 
BUILDBNG ENVELOPE REQUBREME^!TS^*^''°"9^^ - CLIMATE ZONE 12a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELERflENT 


CONDITOON/VALUE 


SkyMglite (U-factor) 


0.8 


Slab or below-grade wall (iJ-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


i/-factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Koof assemblies (^-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (if-value) 
Framed 


No framing 


iVietal framing 


Wood framing 








R-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








7?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


i?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (£/-ffactor) 


0.8 


Slab or below-grade wall (i?-value) 


R-8 


Windows and glass doors 
PF<0.25 


SHGC 


l/-factor 


0.4 


0.4 


0.25 < PF < 0.50 


0.5 


0.4 


PF > 0.50 


0.7 


0.4 


Roof assemblies (^- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-30 


R-24 


Metal purlin without thermal block 


R-38 


R-24 


Floors over outdoor air or unconditioned space (i?- value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTERNATIOMAL EMERGY CONSERVATBOM CODE'^ 



123 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(28) 
BUILDING ENVELOPE REQUIREMENTS^ "^~"9'' « - CLIMATE ZONE 12b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (R-\alue) 


R-0 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-16 


Metal purlin with thermal block 


R-25 


R-17 


Metal purlin without thermal block 


X 


R-17 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-15 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








7?- value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (£/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


Wactor 


0.5 


0.6 


0.25 < PF < 0.50 


0.6 


0.6 


PF > 0.50 


0.7 


0.6 


Roof assemblies (/f -value) 

All-wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (/?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-15 


Metal joist/truss 


R-19 


R-16 


Concrete slab or deck 


NA 


R-16 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








R-valut cavity 


NA 


R-11 


R-11 


R-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








7?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUSLDBiMG 



TABLE 802.2(28)— coniinoed 
IG ESSIVELOPE REQUIREMENTS^ "'™"9'^^ - CLIMATE ZOME 12b 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


O-factor 


0.4 




0.5 


0.25 < PF < 0.50 


0.5 




0.5 


PF > 0.50 


0.6 




0.5 


Moof assemblies (iJ-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


X 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or encomditioned space (i^-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-15 


Metal joist/truss 


R-19 




R-16 


Concrete slab or deck 


NA 




R-16 


Above-grade walls (i?-value) 
Framed 


No framing 


i\Aetal framing 


Wood framing 










/?-value cavity 


NA 


R-11 




R-11 


R-value continuous 


NA 


R-0 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-U 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?- value cavity 


NA 


R-11 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (i?-vatae) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.3 




0.5 


0.25 < PF < 0.50 


0.4 




0.5 


PF>0.50 


0.5 




0.5 


Eoof assemblies (if-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


R-38 




R-24 


Metal purlin without thermal block 


R-49 




R-24 


Floors over outdoor air or imconditiomied space (i?-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 




R-15 


Metal joist/truss 


R-19 




R-16 


Concrete slab or deck 


NA 




R-16 


Above-grade walls (if-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










/?- value cavity 


NA 


R-13 




R-13 


/?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-U 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










/?-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An R-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 SSVITERMATDOMAL ENERGY CONSERVATDON CODE"* 



125 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(29) 
BUILDING ENVELOPE REQUIREMENTS^ '''^"9'' « - CLIMATE ZONE 13a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ([/-factor) 


0.8 


Slab or below-grade wall (it-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


0.7 


0.25 < PF < 0.50 


Any 


0.7 


PF>0.50 


Any 


0.7 


Moof assemblies (it-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-14 


Metal joist/truss 


R-19 


R-15 


Concrete slab or deck 


NA 


R-14 


Metal purlin with thermal block 


R-25 


R-15 


Metal purlin without thermal block 


X 


R-15 


Floors over outdoor air or unconditioned space (it-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (it -value) 
Framed 


No framing 


Metal framing 


Wood framing 








it-value cavity 


NA 


R-13 


R-11 


it-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








it-value cavity 


NA 


R-11 


R-11 


it-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








it-value cavity 


NA 


R-11 


R-11 


it-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE Vl/ALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


0.8 


Slab or below-grade wall (it-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.6 


0.6 


0.25 < PF < 0.50 


0.7 


0.6 


PF > 0.50 


Any 


0.6 


Roof assemblies (it-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purUn with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (it-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (it-value) 
Framed 


No framing 


lUletal framing 


Wood framing 








it-value cavity 


NA 


R-13 


R-11 


/t-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








it-value cavity 


NA 


R-11 


R-11 


it-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








it-value cavity 


NA 


R-11 


R-11 


it-value continuous 


R-5 


R-0 


R-0 



(continued) 



926 



2003 8NTERNATB0NAL ENERGY CONSERVATION CODE'^ 



TABLE 802.2(29) — confonued 
BUILDSNG EMVELOPE REQUIREMENTS^ *''''°"9'^« - CLBIV3ATE ZONE 13a 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Roof assemblies (i?-valee) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over ontdoor air or unconditioned space (if-value) 
All-wood joist/truss 


Dnsuiation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (i?-valEe) 
Framed 


No framing 


Metal framing 


Wood framing 








^- value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEiWiENT 


CONDITJON/VALUE 


Skylights ((/-factor) 


0.8 


Slab or below-grade wall (iJ-valne) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


(/■factor 


0.4 


0.4 


0.25 < PF < 0.50 


0.5 


0.4 


PF > 0.50 


0.7 


0.4 


Eoof assemblies (i?-vatae) 
All-wood joist/truss 


Insuiation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-30 


R-24 


Metal purlin without thermal block 


R-38 


R-24 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Dnsuiation between framing 


Continuous insulation 


R-19 


R-16 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (i? -value) 
Framed 


No framing 


IVietal framing 


Wood framing 








7?-value cavity 


NA 


R-13 


R-11 


7?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERiSSATlOSsaAL ESS3EHGY CONSERVATIOINI CODE^ 



127 



ACCEPTABLE PRACTICE FOR COMMERCSAL BUILDINGS 



TABLE 802.2(30) 

BUILDING ENVELOPE REQUJREIViENTS^*''™"9'^^ - CLIMATE ZONE 13b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (l?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


Any 


0.25 < PF < 0.50 


Any 


Any 


PF > 0.50 


Any 


Any 


Roof assemblies (i?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-18 


Metal purlin with thermal block 


R-30 


R-19 


Metal purlin without thermal block 


NA 


R-19 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-U 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








7?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE VifALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (t/-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


lA-factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Roof assemblies (if-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (if-value) 

Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-13 


R-11 


i?- value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








i?-value cavity 


NA 


R-U 


R-U 


/?- value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?- value cavity 


NA 


R-11 


R-U 


i?-value continuous 


R-5 


R-0 


R-0 



(continued) 



128 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COWiMERClAL BUBLDING 



TABLE 802.2(30) — continued 



BU8LDING ENVELOPE REQUBREMENTS^*^''°"9''^ 


"CLIMATE ZONE 13b 




WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (iJ-valne) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 


0.5 


0.25 < PF < 0.50 


0.5 


0.5 


PF > 0.50 


0.6 


0.5 


Roof assemblies (if-valoe) 
A]]-wood joist/truss 


Dnsulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over oetdoor air or enconditioned space (if-vatae) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (^-valoe) 
Framed 


No framing 


yetal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-0 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (if -value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


(/.factor 


0.4 


0.4 


0.25 < PF < 0.50 


0.5 


0.4 


PF>0.50 


0.6 


0.4 


Moof assemblies (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-38 


R-24 


Metal purlin without thermal block 


R-49 


R-24 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-17 


Concrete slab or deck 


NA 


R-17 


Above-grade walls (if -value) 
Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


/?-vaIue continuous 


NA 


R-7 


R-3 


CMU, > 8 inches, with integral insulation 








i?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








7?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates die condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIOMAL ENERGY CONSERVATION CODE*^ 



1129 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(31) 
BUILDING ENVELOPE REQUIREMENTS^ "^^°"9'' ^ - CLIMATE ZONE 14a 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (i7-factor) 


0.8 


Slab or below-grade wall (i?-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


{/-factor 


Any 


0.7 


0.25 < PF < 0.50 


Any 


0.7 


PF > 0.50 


Any 


0.7 


Roof assemblies (if-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-19 


R-17 


Metal joist/truss 


R-25 


R-18 


Concrete slab or deck 


NA 


R-17 


Metal purlin with thermal block 


R-30 


R-18 


Metal purlin without thermal block 


X 


R-18 


Floors over outdoor air or unconditioned space (/?-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (i?-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


^-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








R-va\ut cavity 


NA 


R-11 


R-11 


R-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


BMl 


^-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (/f -value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


lAfactor 


0.5 


0.6 


0.25 < PF < 0.50 


0.6 


0.6 


PF > 0.50 


0.7 


0.6 


Roof assemblies (iJ-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (if -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (/?-value) 
Framed 


No framing 


Metal framing 


Wood framing 








^-value cavity 


NA 


R-13 


R-11 


i? -value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


^- value continuous 


R-5 


R-0 


R-0 



(continued) 



130 



2003 INTERNATIONAL ENERGY CONSERVATION CODE'' 



ACCEPTABLE PRACTICE FOR COMMERCBAL BUILDING 



.2(31)- 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONOmOW/VALUE 


Skylights (JZ-factor) 


0.8 


Slab or below-grade wall (if -value) 


R-8 


Wnmdows amd glass doors 
PF < 0.25 


SHGC 


iZ-factor 


0.4 


0.5 


0.25 < PF < 0.50 


0.5 


0.5 


PF > 0.50 


0.6 


0.5 


Roof assemblies (i?-valiuie) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (if-value) 
Framed 


No framing 


iVIetal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-11 


R-11 


i?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








^-value cavity 


NA 


R-11 


R-11 


y?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


0.8 


Slab or below-grade wall (if-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


{/■factor 


0.4 


0.4 


0.25 < PF < 0.50 


0.5 


0.4 


PF > 0.50 


0.6 


0.4 


Roof assemblies (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-38 


R-24 


Metal purlin without thermal block 


R-38 


R-24 


Floors over outdoor air or unconditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-18 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?- value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








if-value cavity 


NA 


R-11 


R-11 


if- value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


if-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



1003 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUSLOINGS 



TABLE 802.2(32) 
BUILDING ENVELOPE REQUIREMENTS^ "^™"9*' ® - CLIMATE ZONE 14b 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.8 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


Any 


0.7 


0.25 < PF < 0.50 


Any 


0.7 


PF > 0.50 


Any 


0.7 


Roof assemblies (j?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


NA 


R-20 


Floors over outdoor air or unconditioned space (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


FMl 


/?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








7?-value cavity 


NA 


R-11 


FMI 


i?- value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.8 


Slab or below-grade wall (/?-value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Roof assemblies (/?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (/f-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-U 


R-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








R-value cavity 


NA 


R-11 


R-11 


R-valuQ continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



132 



2003 INTERNATIONAL ENERGY CONSERVATION CODE* 



ACCEPTABLE PiRACTICE FOR COMIiERCaAL BUILDBNG 



TABLE 802.2(32) — continued 
ELOPE REQUIREMENTS^ ^^'■''"S*^ « ■ CLIMATE ZONE Mb 



Wll^DOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONOmON/VALUE 


Skylights (U-f&ctor) 


0.8 


Slab or below-grade wall (if-valoe) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 


0.5 


0.25 < PF < 0.50 


0.5 


0.5 


PF > 0.50 


0.6 


0.5 


Roof assemblies (i?-vatae) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over osiMoor air or unconditioned space (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (i?-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








i?-value cavity 


NA 


R-11 


R-11 


^-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-U 


R-11 


/?- value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDSTION/VALUE 


Skylights (tZ-factor) 


0.8 


Slab or below-grade wall (if-valee) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


U-factor 


0.4 


0.4 


0.25 < PF < 0.50 


0.5 


0.4 


PF > 0.50 


0.6 


0.4 


Moof assemblies (i?-vatae) 
All- wood joist/truss 


BnsulatSon between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


R-38 


R-24 


Metal purlin without thermal block 


R-49 


R-24 


Floors over outdoor air or enconditioned space (if-valee) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-19 


Concrete slab or deck 


NA 


R-19 


Above-grade walls (i?-valiiie) 
Framed 


No framing 


Metal framing 


Wood framing 








7?-value cavity 


NA 


R-13 


R-13 


^-value continuous 


NA 


R-7 


R-3 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-U 


i?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-U 


/?-value continuous 


R-5 


R-0 


R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 8NTERNATB0NAL ENERGY CONSERVATBON CODE^ 



ACCEPTABLE PRACTJCE FOR COMMERCSAL BUILDINGS 



TABLE 802.2(33) 

BUILDING ENVELOPE REQUIREMENTS^ *'^™"9'^^ - CLIMATE ZONE 15 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights ([/-factor) 


0.6 


Slab or below-grade wall (/f-value) 


R-0 


Windows and glass doors 

PF < 0.25 


SHGC 


U-factor 


Any 


0.7 


0.25 < PF < 0.50 


Any 


0.7 


PF > 0.50 


Any 


0.7 


Roof assemblies (^-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (i?-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (/f-value) 
Framed 


No framing 


iVletal framing 


Wood framing 








7?-value cavity 


NA 


R-13 


R-11 


/?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-ll 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?- value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.6 


Slab or below-grade wall (i?-value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


{^factor 


0.5 


0.5 


0.25 < PF < 0.50 


0.6 


0.5 


PF > 0.50 


0.7 


0.5 


Roof assemblies (/f-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (fi-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (i?-value) 

Framed 


No framing 


fVletal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-11 


i?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 



(continued) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE^ 



ACCEPTABLE PRACTICE FOR COMMERCIAL BU1LD5NG 



TABLE 802.2(33)— conionyed 
^ELOPE REQUIREMENTS^ through e . gLUp 



aATEZ0NE15 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (J/-factor) 


0.6 


Slab or below-grade wall (if-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


JAfactor 


0.5 




0.4 


0.25 < PF < 0.50 


0.6 




0.4 


PF > 0.50 


0.7 




0.4 


Moof assemblies (iJ-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


X 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or nnconditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 










7?-value cavity 


NA 


R-13 




R-11 


7?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










^-value cavity 


NA 


R-11 




R-11 


/?-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-13 




R-II 


/?-value continuous 


R-6 


R-0 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (^/-factor) 


0.6 


Slab or below-grade wall (R-v&lue) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


y-factor 


0.4 




0.4 


0.25 < PF < 0.50 


0.5 




0.4 


PF > 0.50 


0.7 




0.4 


Moof assemblies (if-valme) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


R-38 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over oetdoor air or unconditioned space (i? -valine) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (iJ-vatae) 
Framed 


No framing 


Metal framing 


Wood framing 










7?-value cavity 


NA 


R-13 




R-13 


7?-value continuous 


NA 


R-7 




R-4 


CMU, > 8 inches, with integral insulation 










7?-value cavity 


NA 


R-13 




R-11 


^-value continuous 


R-5 


R-0 




R-0 


Other masonry walls 










R-va\ue cavity 


NA 


R-13 




R-11 


/?-value continuous 


R-6 


R-3 




R-0 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?-value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 BNTERMATBONAL ENERGY CONSERVATION CODE® 



135 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(34) 
BUILDING ENVELOPE REQUIREMENTS^ "^^"S'^^ - CLIMATE ZONE 16 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ({/-factor) 


0.6 


Slab or below-grade wall (/f-value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


U-iactoT 


0.7 


0.6 


0.25 <PF< 0.50 


Any 


0.6 


PF > 0.50 


Any 


0.6 


Roof assemblies (/f-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-19 


Metal joist/truss 


R-25 


R-20 


Concrete slab or deck 


NA 


R-19 


Metal purlin with thermal block 


R-30 


R-20 


Metal purlin without thermal block 


X 


R-20 


Floors over outdoor air or unconditioned space (£-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








y?-value cavity 


NA 


R-13 


Rll 


R-\a\ue continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-11 


R-11 


7?-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-11 


R-11 


/?-value continuous 


R-5 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights ([/-factor) 


0.6 


Slab or below-grade wall (/{-value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


(Afactor 


0.7 


0.5 


0.25 < PF < 0.50 


Any 


0.5 


PF > 0.50 


Any 


0.5 


Roof assemblies (/f-value) 

All-wood joist/truss 


insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (J?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (/{-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/{-value cavity 


NA 


R-13 


R-11 


/{-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/{-value cavity 


NA 


R-11 


R-11 


/{-value continuous 


R-5 


R-0 


R-0 


Other masonry walls 








/{-value cavity 


NA 


R-13 


R-11 


/{-value continuous 


R-9 


R-3 


R-0 



(continued) 



136 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*" 



ACCEPTABLE PRACTSCE FOR COMMERCIAL BUILDING 



BUBLD8WG ENVELOPE REQUSREMEWTS^ ''""""S'" 


'-CLIMATE ZONE 16 






WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEWIENT 


CONDITION/VALOE 


Skylights (£/-factor) 


0.6 




Slab or below-grade wall (U-value) 


R-8 


Windows aed glass doors 
PF < 0.25 


SHGC 


Wactor 


0.5 




0.4 


0.25 < PF < 0.50 


0.6 




0.4 


PF>0.50 


0.7 




0.4 


Moof assemblies (i?-vatae) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


X 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or enconditioned space (i?-vatae) 
All- wood joist/truss 


Insulation between framing 


Continuous insolation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (iJ-value) 
Framed 


No framing 


Metal framing 


Wood framing 










i?-value cavity 


NA 


R-13 




R-13 


/?-value continuous 


NA 


R-3 




R-0 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-13 




R-11 


7?-value continuous 


R-6 


R-0 




R-0 


Other masonry walls 










^-value cavity 


NA 


R-13 




R-13 


7?-value continuous 


R-9 


R-3 




R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (J/-factor) 


0.6 


Slab or below-grade wall (^-value) 


R-8 


Windows annd glass doors 
PF < 0.25 


SHGC 


W-factor 


0.4 




0.4 


0.25 < PF < 0.50 


0.5 




0.4 


PF > 0.50 


0.7 




0.4 


Roof assemblies (R-value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


R-38 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (i?-valee) 
Framed 


No framing 


Metal framing 


Wood framing 










R-value cavity 


NA 


R-13 




R-13 


^-value continuous 


NA 


R-14 




R-7 


CMU, > 8 inches, with integral insulation 










/?-value cavity 


NA 


R-13 




R-13 


R-value continuous 


R-10 


R-3 




R-0 


Other masonry walls 










/?- value cavity 


NA 


R-13 




R-13 


/?- value continuous 


R-9 


R-3 




R-3 



For SI: 1 inch - 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An i?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(35) 

BUILDING ENVELOPE REQUIREMENTS" ^^^"S'^' - CLIMATE ZONE 17 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.6 


Slab or below-grade wall (if-value) 


R-8 


Windows and glass doors 

PF < 0.25 


SHGC 


(/-factor 


0.7 


0.5 


0.25 < PF < 0.50 


Any 


0.5 


PF > 0.50 


Any 


0.5 


Roof assemblies (i? -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (i?-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?- value cavity 


NA 


R-13 


R-13 


y?-value continuous 


NA 


R-3 


R-0 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-13 


R-11 


/?-value continuous 


R-6 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-13 


R-11 


i? -value continuous 


R-6 


R-0 


R-0 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


0.6 


Slab or below-grade wall (/?-value) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


(/■factor 


0.7 


0.4 


0.25 < PF < 0.50 


Any 


0.4 


PF>0.50 


Any 


0.4 


Roof assemblies (R-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood ;framing 








7?-value cavity 


NA 


R-13 


R-13 


i?- value continuous 


NA 


R-3 


R.-0 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-13 


R~U 


i?-value continuous 


R-6 


R-0 


R-0 


Other masonry walls 








/?-value cavity 


NA 


R-13 


R-11 


y?-value continuous 


R-9 


R-3 


R-0 



(continued) 



138 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*" 



ACCEPTABLE PRACTBCE FOR COMMERCIAL BUiLDlMG 



^BLE 802.2(35)- 

; REQUIREMENTS'' '^'■^"S^' - CLIMATE ZONE 17 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (£/-factor) 


0.6 


Slab or below-grade wall (K-value) 


R-8 


Windows aed glass doors 
PF < 0.25 


SHGC^ 


(/-factor 


0.7 




0.4 


0.25 < PF < 0.50 


Any 




0.4 


PF > 0.50 


Any 




0.4 


Roof assemblies (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


X 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or nmconditioEed space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (X-valee) 
Framed 


No framing 


IVIetal framing 


Wood framing 










/?-value cavity 


NA 


R-13 




R-13 


/?-value continuous 


NA 


R-4 




R-3 


CMU, > 8 inches, with integral insulation 










^-value cavity 


NA 


R-13 




R-13 


/?-value continuous 


R-10 


R-4 




R-3 


Other masonry walls 










7?- value cavity 


NA 


R-13 




R-13 


/?-value continuous 


R-10 


R-4 




R-3 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (i7-factor) 


0.6 


Slab or below-grade wall (i?-valpe) 


R-8 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


0.4 




0.4 


0.25 < PF < 0.50 


0.5 




0.4 


PF>0.50 


0.7 




0.4 


Roof assemblies (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 




R-23 


Metal joist/truss 


R-30 




R-24 


Concrete slab or deck 


NA 




R-23 


Metal purlin with thermal block 


R-38 




R-24 


Metal purlin without thermal block 


X 




R-24 


Floors over outdoor air or unconditioned space (if -value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 




R-22 


Metal joist/truss 


R-30 




R-23 


Concrete slab or deck 


NA 




R-22 


Above-grade walls (if -value) 
Framed 


No framing 


n/ietal framing 


Wood framing 










i?-value cavity 


NA 


R-13 




R-13 


/f-value continuous 


NA 


R-14 




R-14 


CMU, > 8 inches, with integral insulation 










y?-value cavity 


NA 


R-13 




R-13 


if- value continuous 


R-14 


R-10 




R-7 


Other masonry walls 










^-value cavity 


NA 


R-13 




R-13 


7?-value continuous 


R-14 


R-10 




R-7 



For SI: 1 inch = 25.4 mm. 

a. For buildings over three stories in height, the maximum SHGC shall be 0.60. 

b. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

c. "NA" indicates the condition is not applicable. 

d. An /?- value of zero indicates no insulation is required. 

e. "Any" indicates any available product will comply. 

f. "X" indicates no complying option exists for this condition. 



2003 DMTERNATIIOWAL EMERGY COSMSERVATIION CODE® 



139 



ACCEPTABLE PRACTICE FOR COMMERCDAL BUILDINGS 



TABLE 802.2(36) 
BUILDING ENVELOPE REQUIREMENTS^ *'^'°"9*'« - CLIMATE ZONE 18 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (t/-factor) 


0.6 


Slab or below-grade wall (iJ-value) 


R-12 


Windows and glass doors 

PF < 0.25 


SHGC 


L/i-factcr 


0.7 


0.6 


0.25 < PF < 0.50 


Any 


0.6 


PF>0.50 


Any 


0.6 


Roof assemblies (/{-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (Jf-value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (jR-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


/?-value continuous 


NA 


R-4 


R-3 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


NA 


R-13 


R-13 


i?-value continuous 


R-9 


R-3 


R-3 


Other masonry walls 








/?-value cavity 


NA 


R-13 


R-13 


/?-value continuous 


R-10 


R-4 


R-3 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA^ALUE 


Skylights (t/-factor) 


0.6 


Slab or below-grade wall (/?-value) 


R-12 


Windows and glass doors 

PF < 0.25 


SHGC 


{Afactor 


0.7 


0.4 


0.25 < PF < 0.50 


Any 


0.4 


PF > 0.50 


Any 


0.4 


Roof assemblies (/?-vaIue) 

All-wood joist/truss 


Insulation between framing 


Continuous Insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (i?-value) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (/?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


jR-value continuous 


NA 


R-4 


R-3 


CMU, > 8 inches, with integral insulation 








^-value cavity 


NA 


R-13 


R-13 


i?-value continuous 


R-9 


R-3 


R-3 


Other masonry walls 








^- value cavity 


NA 


R-13 


R-13 


/?-value continuous 


R-10 


R-4 


R-3 



(continued) 



140 



2003 INTERNATIONAL ENERGY CONSERVATION CODE** 



ACCEPTABLE PRACTDCE FOR COB 



TABLE 802.2(36)— continued 
BUILDBNG EMVELOPE REQUBREMENTS^ *'"'°"9^ ® - CL8MATE ZONE 18 



WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (^/-factor) 


X 


Slab or beJow-grade wall (i?-valiuie) 


X 


Windows and glass doors 
PF < 0.25 


SHGC 


Wactor 


X 


X 


0.25 < PF < 0.50 


X 


X 


PF > 0.50 


X 


X 


Roof assemblies (i?-vatae) 
All-wood joist/truss 


[nsulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Metal purlin with thermal block 


X 


X 


Metal purlin without thermal block 


X 


X 


Floors over outdoor air or enconditioned space (i?-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Above-grade walls (iJ-valee) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


X 


X 


/?-value continuous 


NA 


X 


X 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


X 


X 


X 


/?-value continuous 


X 


X 


X 


Other masonry walls 








/?-value cavity 


X 


X 


X 


i?-value continuous 


X 


X 


X 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights (U-f&ctor) 


X 


Slab or below-grade wall (if-valne) 


X 


Windows and glass doors 
PF < 0.25 


SHGC 


0-factor 


X 


X 


0.25 < PF < 0.50 


X 


X 


PF>0.50 


X 


X 


Roof assemblies (if-valee) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Metal purlin with thermal block 


X 


X 


Metal purlin without thermal block 


X 


X 


Floors over oEtdoor air or enconditioned space (if-valliuie) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Above-grade walls (if-valne) 
Framed 


No framing 


iVletal framing 


Wood framing 








/?-value cavity 


NA 


X 


X 


i?-value continuous 


NA 


X 


X 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


X 


X 


X 


/?-value continuous 


X 


X 


X 


Other masonry walls 








/?-value cavity 


X 


X 


X 


/?-value continuous 


X 


X 


X 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as apphcable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 IWTERMATIONAL ENERGY COMSERVATION CODE® 



ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS 



TABLE 802.2(37) 
BUILDING ENVELOPE REQUIREMENTS* *'^'^°"9*' « - CLIMATE ZONE 19 



WINDOW AND GLAZED DOOR AREA 10 PERCENT OR LESS OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (fZ-factor) 


0.6 


Slab or below-grade wall (i?-value) 


R-12 


Windows and glass doors 

PF < 0.25 


SHGC 


{/■factor 


0.7 


0.5 


0.25 < PF < 0.50 


Any 


0.5 


PF > 0.50 


Any 


0.5 


Roof assemblies (/f -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (if -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (i?-value) 

Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


y?-value continuous 


NA 


R-4 


R-3 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-13 


R-13 


/?-value continuous 


R-9 


R-3 


R-3 


Other masonry walls 








/?-value cavity 


NA 


R-13 


R-13 


/?-value continuous 


R-10 


R-4 


R-3 


WINDOW AND GLAZED DOOR AREA GREATER THAN 10 PERCENT BUT NOT GREATER THAN 25 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITION/VALUE 


Skylights (f/-factor) 


0.6 


Slab or below-grade wall (if-value) 


R-12 


Windows and glass doors 

PF < 0.25 


SHGC 


y-factor 


0.7 


0.4 


0.25 < PF < 0.50 


Any 


0.4 


PF > 0.50 


Any 


0.4 


Roof assemblies (/?-vaIue) 

All- wood joist/truss 


Insulation between framing 


Continuous insulation 


R-30 


R-23 


Metal joist/truss 


R-30 


R-24 


Concrete slab or deck 


NA 


R-23 


Metal purlin with thermal block 


X 


R-24 


Metal purlin without thermal block 


X 


R-24 


Floors over outdoor air or unconditioned space (if -value) 

All-wood joist/truss 


Insulation between framing 


Continuous insulation 


R-25 


R-22 


Metal joist/truss 


R-30 


R-23 


Concrete slab or deck 


NA 


R-22 


Above-grade walls (if -value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


R-13 


R-13 


R-yalue continuous 


NA 


R-4 


R-3 


CMU, > 8 inches, with integral insulation 








/?-value cavity 


NA 


R-13 


R-13 


/f-value continuous 


R-9 


R-3 


R-3 


Other masonry walls 








/?- value cavity 


NA 


R-13 


R-13 


7?-value continuous 


R-10 


R-4 


R-3 



(continued) 



142 



2003 INTERNATIONAL ENERGY CONSERVATION CODE*^ 



ACCEPTABLE PRACTICE FOR COiJlWERClAL BUSLDDNG 



TABLE 802.2(37)— confonued 






BUBLDING EMVELOPE REQUIREMENTS^ *'^™"9''« - CLIMATE ZONE 19 


WINDOW AND GLAZED DOOR AREA GREATER THAN 25 PERCENT BUT NOT GREATER THAN 40 PERCENT OF ABOVE-GRADE WALL AREA 


ELEiWENT 


CONDITION/VALUE 


Skylights (^/-factor) 


X 


Slab or below-grade wall (i?-valiuie) 


X 


Windows and glass doors 
PF < 0.25 


SHGC 


iZ-factor 


X 


X 


0.25 < PF < 0.50 


X 


X 


PF>0.50 


X 


X 


Moof assemblies (if -value) 
All- wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joistytruss 


X 


X 


Concrete slab or deck 


X 


X 


Metal purlin with thermal block 


X 


X 


Metal purlin without thermal block 


X 


X 


Floors over outdoor air or unconditioned space (if-value) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Above-grade walls (i?-valiue) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


X 


X 


/?-value continuous 


NA 


X 


X 


CMU, > 8 inches, with integral insulation 








/?- value cavity 


X 


X 


X 


R-walue continuous 


X 


X 


X 


Other masonry walls 








i?-value cavity 


X 


X 


X 


^-value continuous 


X 


X 


X 


WINDOW AND GLAZED DOOR AREA GREATER THAN 40 PERCENT BUT NOT GREATER THAN 50 PERCENT OF ABOVE-GRADE WALL AREA 


ELEMENT 


CONDITIONA/ALUE 


Skylights ((/-factor) 


X 


Slab or below-grade wall (^-valee) 


X 


Windows and glass doors 
PF < 0.25 


SHGC 


W-factor 


X 


X 


0.25 < PF < 0.50 


X 


X 


PF > 0.50 


X 


X 


Moof assemblies (^-vatae) 
All-wood joist/truss 


Insulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Metal purlin with thermal block 


X 


X 


Metal purlin without thermal block 


X 


X 


Floors over outdoor air or unconditioned space (^-value) 
All- wood joist/truss 


Onsulation between framing 


Continuous insulation 


X 


X 


Metal joist/truss 


X 


X 


Concrete slab or deck 


X 


X 


Above-grade walls (if-value) 
Framed 


No framing 


Metal framing 


Wood framing 








/?-value cavity 


NA 


X 


X 


7?-value continuous 


NA 


X 


X 


CMU, > 8 inches, with integral insulation 








7?-value cavity 


X 


X 


X 


/?-value continuous 


X 


X 


X 


Other masonry walls 








/?-value cavity 


X 


X 


X 


^-value continuous 


X 


X 


X 



For SI: 1 inch = 25.4 mm. 

a. Values from Tables 802.2(5) through 802.2(37) shall be used for the purpose of the completion of Tables 802.2(1) through 802.2(4), as applicable based on win- 
dow and glazed door area. 

b. "NA" indicates the condition is not applicable. 

c. An /?- value of zero indicates no insulation is required. 

d. "Any" indicates any available product will comply. 

e. "X" indicates no complying option exists for this condition. 



2003 INTERNATBONAL EMERGY CONSERVATION CODE'* 



1 44 2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



;LlliME liAP^ 



SECTIOM 901 
GENERAL 

901.1 Scope. The criteria of this chapter estabUsh design con- 
ditions based on political boundaries for use with climate-de- 
pendent requirements in Chapters 5, 6 and 8, as applicable. 

SECTION 902 
CUiiME ZONES 

902.1 Gemeral. The climate zone for use in Table 302.1 shall 
be selected from the applicable map in Figures 902.1(1) 
through 902.1(51) corresponding to the state and county of 
each jurisdiction. 



2003 II WTERN ATDOM AL EWERG Y CONSER VATBOSM CODE® D 45 



IN) 
O 

1 



O 

> 

ir 

m 
z 
m 

30 
Q 

< 

O 

o 

(» 
m 

< 

> 

H 
O 

o 
o 

a 

imi 




Zone 4B t^^ Zone 7A 
Zone 5A | ■1^'':"^ Zone 8 
Zone 6B 



Zone 


County 


6B 


Autauga (H) 


48 


Baldwin (H) 


5A 


Barbour (H) 


68 


Bibb (H) 


7A 


Blount 


5A 


Bullock (H) 


5A 


Butler (H) 


68 


Calhoun (H) 


68 


Chambers (H) 


7A 


Cherokee 


68 


Chilton (H) 


5A 


Choctaw (H) 


5A 


Clarke (H) 


7A 


Clay 


7A 


Cleburne 


48 


Coffee (H) 


8 


Colbert (H) 


5A 


Conecuh (H) 


68 


Coosa (H) 


48 


Covington (H) 


5A 


Crenshaw (H) 


7A 


Cullman 


48 


Dale (H) 


5A 


Dallas (H) 


8 


De Kalb 


68 


Elmore (H) 


48 


Escambia (H) 


7A 


Etowah 


7A 


Fayette 


8 


Franklin 


48 


Geneva (H) 


5A 


Greene (H) 


5A 


Hale (H) 


48 


Henry (H) 



Zone County 


48 


Houston (H) 


8 


Jackson 


68 


Jefferson (H) 


7A 


Lamar 


8 


Lauderdale 


8 


Lawrence 


68 


Lee (H) 


8 


Limestone 


5A 


Lowndes (H) 


68 


Macon (H) 


8 


l\^adison 


5A 


Marengo (H) 


7A 


Marion 


8 


Marshall 


48 


Mobile (H) 


5A 


Monroe (H) 


68 


Montgomery (H) 


8 


Morgan 


5A 


Perry (H) 


68 


Pickens (H) 


5A 


Pike (H) 


7A 


Randolph 


5A 


Russell (H) 


68 


Shelby (H) 


6B 


St Clair (H) 


5A 


Sumter (H) 


68 


Talladega (H) 


68 


Tallapoosa (H) 


68 


Tuscaloosa (H) 


68 


Walker (H) 


5A 


Washington (H) 


5A 


Wilcox (H) 


7A 


Winston 



a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FIGURE 902.1(1) 
ALABAMA^ 



© 


Zone 


Borough^ 






w 


16 


Adak Region 


17 


Kenai Peninsula 


H 


19 


Alaska Gateway 


15 


Ketchikan Gateway 


m 


17 


Aleutian Region 


16 


Kodiak Island 


2 

1 


17 


Aleutians East 


18 


Kuspuk 


17 


Anchorage 


17 


Lake and Peninsula 




15 


Annette Island 


18 


Lower Kuskokwim 


£& 

> 


19 


Bering Straits 


18 


Lower Yukon 


m 


17 


Bristol Bay 


17 


Matanuska-Susitna 


2 


16 


Chatham 


19 


North Slope 


s 

-< 


17 


Chugach 


19 


Northwest Arctic 


18 


Copper River 


17 


Pribilof Islands 


o 


18 


Delta/Greely 


15 


Sitka 


18 


Denali 


15 


Southeast Island 


0> 

m 


18 


Fairbanks North Star 


17 


Southwest Region 


s 
< 


16 


Haines 


17 


Yakutat 


^ 


19 


Iditarod Area 


19 


Yukon Flats 


o 


16 


Juneau 


19 


Yukon-Koyukuk 


2 


18 


Kashunamiut 


18 


Yupiit 



m 




©> (^S) 




a. Borough refers to boroughs, united home rule municipalities and regional education attendance areas. 

FIGURE 902.-a (2) 




Zone 


County 


13B 


Apache 


6B 


Cochise 


14A 


Coconino 


8 


Gila 


6B 


Graham 


6B 


Greenlee 


3C 


La Paz 


3C 


Maricopa 


7B 


Mohave 


10B 


Navajo 


4B 


Pima 


4B 


Pinal 


6B 


Santa Cruz 


10B 


Yavapai 


3C 


Yuma 



V//A ZoneSC 


mm 


Zone 4B 


WM 


Zone 68 


^^ 


Zone 78 


M^^^^i 


Zone 8 


b^^ Zone 1 0B 


wm 


Zone 138 


\ 1 


Zone 14A 



FIGURE 902.1(3) 
ARIZONA 



m 



m 




Zone 6B 
Zone 7B 
Zone 8 
Zone 9B 



Zooe 


! Coooty 






68 


Arkansas (H) 


7B 


Lee (H) 


6B 


Ashley (H) 


6B 


Lincoln (H) 


gB 


Baxter 


6B 


Little River (H) 


9B 


Benton 


7B 


Logan (H) 


9B 


Boone 


7B 


Lonoke (H) 


6B 


Bradley (H) 


9B 


Madison 


6B 


Calhoun (H) 


9B 


Marion 


9B 


Carroll 


6B 


Miller (H) 


6B 


Chicot (H) 


8 


Mississippi 


6B 


Clark (H) 


7B 


Monroe (H) 


8 


Clay 


8 


Montgomery 


8 


Cleburne 


6B 


Nevada (H) 


6B 


Cleveland (H) 


9B 


Newton 


6B 


Columbia (H) 


6B 


Ouachita (H) 


7B 


Conway (H) 


7B 


Perry (H) 


8 


Craighead 


7B 


Phillips (H) 


8 


Crawford 


7B 


Pike (H) 


7B 


Crittenden (H) 


8 


Poinsett 


7B 


Cross (H) 


8 


Polk 


6B 


Dallas (H) 


8 


Pope 


6B 


Desha (H) 


7B 


Prairie (H) 


6B 


Drew (H) 


7B 


Pulaski (H) 


7B 


Faulkner (H) 


8 


Randolph 


8 


Franklin 


7B 


Saline (H) 


8 


Fulton 


7B 


Scott (H) 


7B 


Garland (H) 


9B 


Searcy 


6B 


Grant (H) 


8 


Sebastian 


8 


Greene 


7B 


Sevier (H) 


7B 


Hempstead (H) 


8 


Sharp 


7B 


Hot Spring (H) 


7B 


St Francis (H) 


7B 


Howard (H) 


9B 


Stone 


8 


Independence 


6B 


Union (H) 


8 


Izard 


8 


Van Buren 


8 


Jackson 


9B 


Washington 


6B 


Jefferson (H) 


7B 


White (H) . 


8 


Johnson 


7B 


Woodruff (H) 


6B 


Lafayette (H) 


7B 


Yell (H) 


8 


Lawrence 







a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FJGURE 902.1(4) 



Zone 3A 
Zone 4A 
Zone 4B 
Zone 5A 
Zone 5B 
Zone 6A 
Zone 6B 
Zone 8 
Zone 9A 
Zone 9B 
Zone 11 A 
Zone 13B 
Zone 15 



> 



m 
m 

3 
Q 

< 
o 
o 

u> 
m 

< 
> 

H 
O 

O 

o 
o 
m 




o 



Zone 


County 


Zone 


County 


> 


6A 


Alameda 


6A 


Monterey 


m 

> 


15 


Alpine 


6A 


Napa 


8 


Amador 


11A 


Nevada 


"0 


6B 


Butte 


4A 


Orange 




8 


Calaveras 


8 


Placer 




6B 


Colusa 


13B 


Plumas 




6A 


Contra Costa 


4B 


Riverside 




9A 


Del Norte 


6B 


Sacramento 




8 


El Dorado 


6B 


San Benito 




6B 


Fresno 


4B 


San Bernardino 




6B 


Glenn 


3A 


San Diego 




9A 


Humboldt 


6A 


San Francisco 




3A 


Imperial 


6A 


San Joaquin 




98 


Inyo 


6A 


San Luis Obispo 




5B 


Kern 


6A 


San Mateo 




6B 


Kings 


5A 


Santa Barbara 




8 


Lake 


6A 


Santa Clara 




13B 


Lassen 


6A 


Santa Cruz 




4A 


Los Angeles 


6B 


Shasta 




6B 


IVladera 


11A 


Sierra 




6A 


IVIarin 


11A 


Siskiyou 




8 


iVIariposa 


6A 


Solano 




8 


Mendocino 


6A 


Sonoma 




6B 


Merced 


6B 


Stanislaus 




15 


Modoc 


6B 


Sutter 




15 


Mono 


6B 

9B 

6B 

8 

4A 

6B 

6B 


Tehama 

Trinity 

Tulare 

Tuolumne 

Ventura 

Yolo 

Yuba 





FSGURE 902.1(5) 
CALIFOR^S!A 



© 

s 

HI 

m 



o 



w 

m 






13B 


Adams 




16 


Alamosa 




13B 


Arapaiioe 




16 


Archuleta 




11B 


Baca 




11B 


Bent 




13B 


Boulder 




16 


Chaffee 




13B 


Cheyenne 




17 


Clear Creek 




16 


Conejos 




16 


Costilla 




11B 


Crowley 




16 


Custer 




13B 


Delta 




13B 


Denver 




15 


Dolores 




13B 


Douglas 




15 


Eagle 




13B 


El Paso 




138 


Elbert 




11B 


Fremont 




15 


Garfield 




13B 


Gilpin 




17 


Grand 




17 


Gunnison 




17 


Hinsdale 




11B 


Huerfano 




17 


Jackson 




13B 


Jefferson 


Zone lie 
Zone 13B 


13B 
13B 


Kiowa 
Kit Carson 


Zone 15 






Zone 16 






Zone 17 







Zone 


CoynUy 


15 


La Plata 


17 


Lake 


13B 


Larimer 


11B 


Las Animas 


13B 


Lincoln 


13B 


Logan 


13B 


Mesa 


17 


Mineral 


15 


Moffat 


15 


Montezuma 


13B 


Montrose 


13B 


Morgan 


11B 


Otero 


15 


Ouray 


17 


Park 


13B 


Phillips 


17 


Pitkin 


11B 


Prowers 


11B 


Pueblo 


15 


Rio Blanco 


17 


Rio Grande 


17 


Routt 


16 


Saguache 


17 


San Juan 


15 


San Miguel 


13B 


Sedgwick 


17 


Summit 


13B 


Teller 


13B 


Washington 


13B 


Weld 


138 


Yuma 



F8GURE902.1(6) 



s 




Zone 


County 


12A 


Fairfield 


13A 


Hartford 


14A 


Litchfield 


12A 


Middlesex 


12A 


New Haven 


12A 


New London 


14A 


Tolland 


14A 


Windham 



m- 


3 Zone12A 


w^ 


i Zone13A 


\ ■ 


Z] Zone 14A 



w 
m 

m 
< 
> 

o 

8 

O 



FIGURE 902.1(7) 
CONNECTICUT 



CLlWiATE WIAPS 



fog 

3 c 5 (8 
O 3 
O ^ Z (fi 



m 

Oi 

CD 

c 
o 

N 




DO 

o 

C 
O 

N 



& 

S 03 

£Q O CQ 

C7) T- O^ 



5 




UJ <^ 



2003 DNTERNATIONAL EMERGY CONSERVATION CODE® 



153 



CLIMATE MAPS 



m 

O 
CD 

o 
N 

I 




to 

si 

is 



154 



2003 SMTERfMATBONAL ENERGY CONSERVATJON CODE® 



h5 
© 

1 














m 








o 

2 










1= 










m 

IrfTl 


Zone 


County 


Zone 


Couinty 




3B 


Alachua (H) 


2A 


Lake (H) 


< 


3B 


Baker (H) 


18 


Lee (H) 


a 


4B 


Bay (H) 


48 


Leon (H) 


Q 
2 


38 


Bradford (H) 


2A 


Levy (H) 


m 


2A 


Brevard (H) 


48 


Liberty (H) 


< 


18 


Broward (H) 


38 


iViadison (H) 




48 


Calhoun (H) 


2A 


iVIanatee (H) 


O 


2A 


Charlotte (H) 


2A 


Marion (H) 


2 


2A 


Citrus (H) 


18 


Martin (H) 


o 

O 


38 


Clay (H) 


1B 


Monroe (H) 


Rnl 


18 


Collier (H) 


38 


Nassau (H) 


"@ 


38 


Columbia (H) 


48 


Okaloosa (H) 




18 


Dade (H) 


2A 


Okeechobee (H) 




2A 


De Soto (H) 


2A 


Orange (H) 




38 


Dixie (H) 


2A 


Osceola (H) 




38 


Duval (H) 


IB 


Palm Beach (H) 




48 


Escambia (H) 


2A 


Pasco (H) 




38 


Flagler (H) 


2A 


Pinellas (H) 




48 


Franklin (H) 


2A 


Polk (H) 




48 


Gadsden (H) 


38 


Putnam (H) 




38 


Gilchrist (H) 


48 


Santa Rosa (H) 




18 


Glades (H) 


2A 


Sarasota (H) 




48 


Gulf(H) 


2A 


Seminole (H) 




38 


Hamilton (H) 


38 


St Johns (H) 




2A 


Hardee (H) 


2A 


St Lucie (H) 




18 


Hendry (H) 


2A 


Sumter (H) 




2A 


Hernando (H) 


38 


Suwannee (H) 




2A 


Highlands (H) 


38 


Taylor (H) 




2A 


Hillsborough (H) 


38 


Union (H) 




48 


Holmes (H) 


2A 


Volusia (H) 




2A 


Indian River (H) 


48 


Wakulla (H) 




48 


Jackson (H) 


48 


Walton (H) 




48 


Jefferson (H) 


4B 


Washington (H) 




38 


Lafayette (H) 












a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FSGURE 902.1(10) 



o 



Zone County 

4B Appling (H) 
Atkinson (H) 
Bacon (H) 
Baker (H) 
Baldwin (H) 
Banks 
Barrow 
Bartow 



m 
> 

H 

O 

Z 

r- 
m 

m 

< 
O 
O 

z 

m 

< 
> 

H 

o 
z 
o 
o 
o 
m 




County 

Chattahoochee (H) 

Chattooga 

Cherokee 

Clarke 

Clay (H) 

Clayton 

Clinch (H) 

Cobb 

Coffee (H) 

Colquitt (H) 

Columbia (H) 

Cook (H) 

Coweta 

Crawford (H) 

Cnsp (H) 

Dade 

Dawson 

De Kalb 

Decatur (H) 

Dodge (H) 

Dooly (H) 

Dougherty (H) 

Douglas 

Early (H) 

Echols (H) 

Effingham (H) 

Elbert 

Emanuel (H) 

Evans (H) 

Fannin 

Fayette 

Floyd 

Forsyth 

Franklin 



a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FIGURE 902.1(11) 
GEORGIA^ 



Zone 

7A 

8 

6B 

4B 

8 

4B 

6B 

7A 

8 

7A 

6B 

7A 

6B 

7A 

6B 

7A 

5A 

5A 

7A 

6B 

4B 

6B 

5A 

5A 

6B 

6B 

4B 

5A 

5A 

4B 

6B 

4B 

4B 

8 

5A 

7A 

5A 

6B 

4B 

6B 

4B 

4B 

68 

5A 

6B 

8 

5A 

7A 

7A 

7A 



County 

Fulton 
Gilmer 
Glascock (H) 
Glynn (H) 
Gordon 
Grady (H) 
Greene (H) 
Gwinnett 
Habersham 
Hall 

Hancock (H) 
Haralson 
Harris (H) 
Hart 

Heard (H) 
Henry 

Houston (H) 
Irwin (H) 
Jackson 
Jasper (H) 
Jeff Davis (H) 
Jefferson (H) 
Jenkins (H) 
Johnson (H) 
Jones (H) 
Lamar (H) 
Lanier (H) 
Laurens (H) 
Lee (H) 
Liberty (H) 
Lincoln (H) 
Long (H) 
Lowndes (H) 
Lumpkin 
Macon (H) 
Madison 
Marion (H) 
McDuffie (H) 
Mcintosh (H) 
Meriwether (H) 
Miller (H) 
Mitchell (H) 
Monroe (H) 
Montgomery (H) 
Morgan (H) 
Murray 

Muscogee (H) 
Newton 
Oconee 
Oglethorpe 



Zone 

7A 

5A 

8 

4B 

6B 

7A 

5A 

6B 

5A 

8 

5A 

6B 

7A 

5A 

5A 

4B 

7A 

7A 

5A 

5A 

5A 

6B 

4B 

5A 

5A 

5A 

4B 

5A 

4B 

8 

5A 

5A 

6B 

5A 

5A 

8 

5A 

8 

7A 

4B 

6B 

6B 

4B 

5A 

5A 

8 

8 

5A 

7A 

5A 



County 

Paulding 
Peach (H) 
Pickens 
Pierce (H) 
Pike (H) 
Polk 

Pulaski (H) 
Putnam (H) 
Quitman (H) 
Rabun 

Randolph (H) 
Richmond (H) 
Rockdale 
Schley (H) 
Screven (H) 
Seminole (H) 
Spalding 
Stephens 
Stewart (H) 
Sumter (H) 
Talbot (H) 
Taliaferro (H) 
Tattnall (H) 
Taylor (H) 
Telfair (H) 
Terrell (H) 
Thomas (H) 
Tift (H) 
Toombs (H) 
Towns 
Treutlen (H) 
Troup (H) 
Turner (H) 
Twiggs (H) 
Union 
Upson (H) 
Walker 
Walton 
Ware (H) 
Warren (H) 
Washington (H) 
Wayne (H) 
Webster (H) 
Wheeler (H) 
White 
Whitfield 
Wilcox (H) 
Wilkes 

Wilkinson (H) 
Worth (H) 



o 






H 





1A 


Hawaii (H) 


1A 


Honolulu (H) 


1A 


Kalawao(H) 


1A 


Kauai H) 


1A 


Maui (H) 




Zone 1A 




a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 , 

F8GURE 902.1(12) 



i-iUUi-^T 



"kSi.' fin S-rt' «'#■*« '• I 'is 







Zone 


County 


Zone 


County 


12B 


Ada 


13B 


Gem 


15 


Adams 


13B 


Gooding 


15 


Bannock 


15 


Idaho 


15 


Bear Lake 


16 


Jefferson 


14A 


Benewah 


148 


Jerome 


15 


Bingham 


14A 


Kootenai 


16 


Blaine 


14A 


Latah 


15 


Boise 


15 


Lemhi 


15 


Bonner 


15 


Lewis 


15 


Bonneville 


15 


Lincoln 


15 


Boundary 


16 


Madison 


16 


Butte 


15 


Minidoka 


15 


Camas 


128 


Nez Perce 


12B 


Canyon 


15 


Oneida 


15 


Caribou 


128 


Owyhee 


14B 


Cassia 


128 


Payette 


15 


Clark 


15 


Power 


128 


Clearwater 


14A 


Shoshone 


16 


Custer 


16 


Teton 


138 


Elmore 


14B 


Twin Falls 


15 


Franklin 


16 


Valley 


16 


Fremont 


138 


Washington 



^ Zone12B 
^^ Zone 13B 
nZl Zone 14A 
Zone 14B 
Zone 15 
Zone 16 



> 
m 

S 
> 



FIGURE 902.1(13) 
IDAHO 



m 



m 




Zooie 

12B 

10B 

11B 

148 

128 

138 

118 

148 

128 

128 

118 

128 

118 

108 

128 

148 

118 

128 

148 

128 

128 

148 

128 

118 

11B 

118 

138 

108 

138 

10B 

118 

138 

108 

138 



Adams 

Alexander 

Bond 

Boone 

Brown 

Bureau 

Calhoun 

Carroll 

Cass 

Champaign 

Christian 

Clark 

Clay 

Clinton 

Coles 

Cook 

Crawford 

Cumberland 

De Kalb 

DeWitt 

Douglas 

Du Page 

Edgar 

Edwards 

Effingham 

Fayette 

Ford 

Franklin 

Fulton 

Gallatin 

Greene 

Grundy 

Hamilton 

Hancock 



Zone 

108 

138 

138 

138 

108 

118 

118 

108 

148 

108 

148 

138 

138 

138 

13B 

148 

118 

148 

13B 

128 

128 

118 

108 

118 

138 

12B 

108 

138 

148 

128 

128 

138 

108 

118 



Hardin 

Henderson 

Henry 

Iroquois 

Jackson 

Jasper 

Jefferson 

Jersey 

Jo Daviess 

Johnson 

Kane 

Kankakee 

Kendall 

Knox 

La Salle 

Lake 

Lawrence 

Lee 

Livingston 

Logan 

Macon 

Macoupin 

Madison 

Marion 

Marshall 

Mason 

Massac 

McDonough 

McHenry 

McLean 

Menard 

Mercer 

Monroe 

Montgomery 



Zone 


Coyoty 


12B 


Morgan 


12B 


Moultrie 


14B 


Ogle 


138 


Peoria 


10B 


Perry 


128 


Piatt 


12B 


Pike 


108 


Pope 


108 


Pulaski 


13B 


Putnam 


10B 


Randolph 


118 


Richland 


13B 


Rock Island 


108 


Saline 


12B 


Sangamon 


128 


Schuyler 


128 


Scott 


118 


Shelby 


108 


St Clair 


13B 


Stark 


148 


Stephenson 


128 


Tazewell 


108 


Union 


128 


Vermilion 


118 


Wabash 


138 


Warren 


108 


Washington 


118 


Wayne 


108 


White 


148 


Whiteside 


13B 


Will 


108 


Williamson 


148 


Winnebago 


138 


Woodford 



FIGURE 902.1(14) 



i\3 
@ 

1 

■HI 

m 











Zone 


County 


Zone 


County 


Zone 


County 


13B 


Adams 


12B 


Hendricks 


118 


Pike 


13B 


Allen 


128 


Henry 


138 


Porter 


11B 


Bartholomew 


138 


Howard 


108 


Posey 


138 


Benton 


14A 


Huntington 


138 


Pulaski 


138 


Blackford 


118 


Jackson 


12B 


Putnam 


128 


Boone 


13B 


Jasper 


138 


Randolph 


118 


Brown 


138 


Jay 


118 


Ripley 


138 


Carroll 


108 


Jefferson 


128 


Rush 


138 


Cass 


118 


Jennings 


118 


Scott 


108 


Clark 


128 


Johnson 


128 


Shelby 


128 


Clay 


118 


Knox 


108 


Spencer 


138 


Clinton 


14A 


Kosciusko 


138 


St Joseph 


118 


Crawford 


138 


La Porte 


138 


Starke 


118 


Daviess 


14A 


Lagrange 


14A 


Steuben 


138 


De Kalb 


138 


Lake 


118 


Sullivan 


118 


Dearborn 


118 


Lawrence 


108 


Switzerland 


128 


Decatur 


138 


Madison 


138 


Tippecanoe 


138 


Delaware 


128 


IVIarion 


138 


Tipton 


118 


Dubois 


138 


Marshall 


128 


Union 


138 


Elkhart 


118 


Martin 


108 


Vanderburgh 


128 


Fayette 


14A 


Miami 


12B 


Vermillion 


108 


Floyd 


11B 


Monroe 


128 


Vigo 


128 


Fountain 


128 


Montgomery 


14A 


Wabash 


128 


Franklin 


128 


Morgan 


128 


Warren 


14A 


Fulton 


138 


Newton 


108 


Warrick 


108 


Gibson 


14A 


Noble 


118 


Washington 


138 


Grant 


118 


Ohio 


128 


Wayne 


118 


Greene 


118 


Orange 


138 


Wells 


128 


Hamilton 


128 


Owen 


138 


White 


128 


Hancock 


128 


Parke 


14A 


Whitley 


108 


Harrison 


108 


Perry 







Zone 10B 
Zone 11 B 
Zone 12B 



Zone 138 
Zone 14A 



FIGURE 902.1(15) 
INDIANA 



fV3 


Zone 


County 




Zone Coynty 




Zone County 






Zone 


County 






Zone Conn"^ 






Z 


one County 


Zone 


County 


Zone 


County 


s 


14B 


Adair 


15 


Bremer 15 Cerro Gordo 148 Dallas 15 Fayette 15 


Hancock 


148 


Jackson 


15 


Mitchell 


•z. 


13B 


Adams 


15 


Buchanan 15 Cherokee 138 Davis 15 Floyd 15 


Hardin 


148 


Jasper 


148 


Monona 


m 
■z 


15 


Allamakee 


15 


Buena Vista 15 Chickasaw 138 Decatur 15 Franklin 148 


Harrison 


138 


Jefferson 


138 


Monroe 


13B 


Appanoose 


15 


Butler 138 Clarke 15 Delaware 138 Fremont 138 


Henry 


13B 


Johnson 


138 


Montgomery 


^ 


148 


Audubon 


15 


Calhoun 15 Clay 138 Des Moines 148 Greene 15 


Howard 


148 


Jones 


138 


Muscatine 


o 


14B 


Benton 


14B Carroll 15 Clayton 15 Dickinson 15 Grundy 15 


Humboldt 138 


Keokuk 


15 


O'Brien 


15 


Black Hawk 


14B Cass 13B Clinton 14B Dubuque 148 Guthrie 15 


Ida 


15 


Kossuth 


15 


Osceola 


ffl 


14B 


Boone 


14B Cedar 148 Crawford 15 Emmet 15 Hamilton 148 


Iowa 


138 


Lee 


138 


Page 


m 

3 












148 


Linn 


15 


Palo Alto 














138 
138 


Louisa 
Lucas 


15 
15 


Plymouth 


< \ 




























Pocahontas 


a , 

a / 






























15 


Lyon 


14B 


Polk 


z; ^ 


) 




























148 
138 
138 


IViadison 
Mahaska 
Marion 


148 
148 
138 


Pottawattamie 










/ 


Poweshiek 


3 
< 








Ringgold 


HI 


J 




























148 
138 


Marshall 
Mills 


15 
138 


Sac 


o y 
























Scott 


S / 


































148 


Shelby 


8 \ 


^ 




























r-^ 




15 

148 

14B 


Sioux 


§ ^ 















m 


Story 


"% 


\ 


U 1 














Tama 




) 






























=^^^ 




138 


Taylor 




\ 






















\ 


1 — ^ 


1 


p^n 




13B 


Union 




( 








1 


1 


1 — ' — 


[ — ^ — 














^^ 


138 


Van Buren 




U 





























^ 


138 


Wapello 




t^ 





























/^^ 


14B 


Warren 




(— 








1 
















1 d 




"^nMi 


138 


Washington 




^ 


IZ 

















''J^L-fJ^J^L/^, 






^^ 


138 


Wayne 




^ 

























7^ 


15 


Webster 




^ 

























^ 


15 


Winnebago 
Winneshiek 




^ 


\ =L 




^^^^ 









wTTTT/'pfPi^ 1-^ y/^ 1^ yj^ i^ >-/ V /^ i^M p- 


ij^/^MpCrl^ 








15 






V 














^^^^^^/^^^^^ 


j'^n-fMj'iiM' 




^/■^a^ 




15 


Woodbury 






c 











1 




■f^J'T^Jy^ 


■Ijyj^i^fj-ij^/. 






^ 






15 


Worth 










} 








L^i^v^ 


P 


m 


^ 


m 






ukA 


-T^rLJ^i 


S 


y/^i^/ 


■ffLri 












15 


Wright 






^B 




^M 


-i^fyLpVrU^ 


■i 








■ 












MM Zone13B 






^^^0^m 




h=H Zone 14B 








<-/ ^ ^^ 




1 1 Zone 1 5 






^2/2^ 





FIGURE 902.1(16) 



m 



i 



m 
z 
m 

Q 
< 

8 



Zone 

10B 

10B 

11B 

9B 

11B 

10B 

11B 

10B 

10B 

9B 



County 

Allen 

Anderson 

Atchison 

Barber 

Barton 

Bourbon 

Brown 

Butler 

Chase 

Chautauqua 



Zone County 

9B Cherokee 

13B Cheyenne 

10B Clark 

11 B Clay 

12B Cloud 

10B Coffey 

9B Comanche 

9B Cowley 

9B Crawford 

13B Decatur 



Zone 

11B 

11B 

10B 

11B 

9B 

12B 

11B 

11B 

11B 

10B 



County 

Dickinson 

Doniphan 

Douglas 

Edwards 

Elk 

Ellis 

Ellsworth 

Finney 

Ford 

Franklin 



Zone County 

11 B Geary 

128 Gove 

12B Graham 

11 B Grant 

11 B Gray 

12B Greeley 

1 0B Greenwood 

11 B Hamilton 

9B Harper 

11 B Harvey 



Zone County 

11 B Haskell 

11 B Hodgeman 

11 B Jackson 

11 B Jefferson 

12B Jewell 

11 B Johnson 

11 B Kearny 

10B Kingman 

10B Kiowa 

9B Labette 



Zone 

12B 
11B 
11B 
10B 
12B 
11B 
11B 
12B 
11B 
10B 



County 

Lane 

Leavenworth 

Lincoln 

Linn 

Logan 

Lyon 

Marion 

Marshall 

McPherson 

Meade 



Zone 

10B 

12B 

9B 

11B 

10B 

11B 

9B 

12B 

13B 

10B 



County 

Miami 

Mitchell 

Montgomery 

Morris 

Morton 

Nemaha 

Neosho 

Ness 

Norton 

Osage 
















Zone 

12B 

11B 

11B 

12B 

11B 

10B 

13B 

11B 

12B 

11B 

11B 

12B 

11B 

11B 

11B 

12B 

10B 

10B 

11B 

12B 

13B 

12B 

11B 

11B 

10B 

9B 

13B 

12B 

11B 

12B 

12B 

12B 

9B 

10B 

11B 



County 

Osborne 

Ottawa 

Pawnee 

Phillips 

Pottawatomie 

Pratt 

Rawlins 

Reno 

Republic 

Rice 

Riley 

Rooks 

Rush 

Russell 

Saline 

Scott 

Sedgwick 

Seward 

Shawnee 

Sheridan 

Sherman 

Smith 

Stafford 

Stanton 

Stevens 

Sumner 

Thomas 

Trego 

Wabaunsee 

Wallace 

Washington 

Wichita 

Wilson 

Woodson 

Wyandotte 



Zone 9B 
Zone 10B 
Zone 11 B 
^m Zone12B 
MM Zone 13B 



o 
n. 

i 



8 



FIGURE 902.1(17) 
KANSAS 



M 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


Coun^ 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


CounSy 


(a 


9B 


Adair 


98 


Caldwell 


108 


Estill 


118 


Harrison 


10B 


Lee 


98 


McCracken 


118 


Nicholas 


118 


Scott 


1 


9B 


Allen 


9B 


Calloway 


108 


Fayette 


98 


Hart 


10B 


Leslie 


108 


McCreary 


98 


Ohio 


108 


Shelby 


m 

3 


10B 


Anderson 


118 


Campbell 


118 


Fleming 


98 


Henderson 


108 


Letcher 


98 


McLean 


108 


Oldham 


98 


Simpson 


S 


98 


Ballard 


98 


Carlisle 


108 


Floyd 


108 


Henry 


118 


Lewis 


9B 


Meade 


108 


Owen 


108 


Spencer 


98 


Barren 


108 


Carroll 


108 


Franklin 


98 


Hickman 


108 


Lincoln 


10B 


Menifee 


108 


Owsley 


9B 


Taylor 


o 


118 


Bath 


118 


Carter 


98 


Fulton 


98 


Hopkins 


98 


Livingston 


108 


Mercer 


118 


Pendleton 


98 


Todd 


> 


10B 


Bell 


108 


Casey 


118 


Gallatin 


108 


Jackson 


98 


Logan 


98 


Metcalfe 


10B 


Perry 


9B 


Trigg 


m 


118 


Boone 


98 


Christian 


108 


Garrard 


10B 


Jefferson 


9B 


Lyon 


98 


Monroe 


10B 


Pike 


10B 


Trimble 




108 


Bourbon 


108 


Clark 


118 


Grant 


108 


Jessamine 


108 


Madison 


108 


Montgomery 


108 


Powell 


9B 


Union 


s 
Q 
•< 


118 


Boyd 


10B 


Clay 


9B 


Graves 


118 


Johnson 


108 


Magoffin 


108 


Morgan 


108 


Pulaski 


98 


Warren 


108 


Boyle 


108 


Clinton 


98 


Grayson 


118 


Kenton 


108 


Marion 


98 


Muhlenberg 


118 


Robertson 


108 


Washington 


o 

2 


118 


Bracken 


98 


Crittenden 


9B 


Green 


10B 


Knott 


98 


Marshall 


108 


Nelson 


108 


Rockcastle 


108 


Wayne 


108 


Breathitt 


98 


Cumberland 


118 


Greenup 


108 


Knox 


11B 


Martin 






118 


Rowan 


98 


Webster 




98 


Breckenridge 


98 


Daviess 


98 


Hancock 


9B 


Larue 


11B 


Mason 






108 


Russell 


108 


Whitley 


< 


108 


Bullitt 


98 


Edmonson 


98 


Hardin 


108 


Laurel 














108 


Wolfe 


o 

a 
o 


98 


Butler 


11B 


Elliot 


108 


Harian 


118 


Lawrence 














108 


Woodford 



Zone9B CZl Zone 11 B 
Zone 108 




FIGURE 902.1(18) 



m 

39 

> 

H 

O 

Z 
> 



Zone 

4B 
4B 
4B 
38 
5A 
4B 
6B 
6B 
6B 
4B 
6B 
4B 
5A 
6B 
5A 
5A 
4B 



Parish 

Acadia (H) 
Allen (H) 
Ascension (H) 
Assumption (H) 
Avoyelles (H) 
Beauregard (H) 
Bienville (H) 
Bossier (H) 
Caddo (H) 
Calcasieu (H) 
Caldwell (H) 
Cameron (H) 
Catahoula (H) 
Claiborne (H) 
Concordia (H) 
De Soto (H) 
East Baton Rouge (H) 



Zone 

6B 
4B 
4B 
6B 
5A 
4B 
4B 
6B 
3B 
4B 
5A 
4B 
SB 
6B 
4B 
6B 
6B 




Parish 

East Carroll (H) 
East Feliciana (H) 
Evangeline (H) 
Franklin (H) 
Grant (H) 
Iberia (H) 
Iberville (H) 
Jackson (H) 
Jefferson (H) 
Jefferson Davis (H) 
La Salle (H) 
Lafayette (H) 
Lafourche (H) 
Lincoln (H) 
Livingston (H) 
Madison (H) 
Morehouse (H) 



Zone 

5A 
3B 
6B 
3B 
4B 
5A 
5A 
6B 
5A 
3B 
3B 
4B 
3B 
3B 
4B 
4B 
3B 
4B 
4B 
5A 
3B 
6B 
4B 
5A 
4B 
6B 
4B 
6B 
4B 
5A 



Zone 3B 
Zone 4B 
Zone 5A 
Zone 6B 



Parish 

Natchitoches (H) 
Orleans (H) 
Ouachita (H) 
Plaquemines (H) 
Pointe Coupee (H) 
Rapides (H) 
Red River (H) 
Richland (H) 
Sabine (H) 
St Bernard (H) 
St Charles (H) 
St Helena (H) 
St James (H) 
St John The Baptist (H) 
St Landry (H) 
St Martin (H) 
St Mary (H) 
St Tammany (H) 
Tangipahoa (H) 
Tensas (H) 
Terrebonne (H) 
Union (H) 
Vermilion (H) 
Vernon (H) 
Washington (H) 
Webster (H) 
West Baton Rouge (H) 
West Carroll (H) 
West Feliciana (H) 
Winn (H) 



a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FIGURE 902.1(19) 
LOUISIANA^ 



< 




Zone 15 
Zone 16 
Zone 17 



Zone 


Coynty 


15 


Androscoggin 


17 


Aroostook 


15 


Cumberland 


16 


Franklin 


15 


Hancock 


15 


Kennebec 


15 


Knox 


15 


Lincoln 


16 


Oxford 


15 


Penobscot 


17 


Piscataquis 


15 


Sagadahoc 


17 


Somerset 


15 


Waldo 


15 


Washington 


15 


York 



902.1(20) 



m 



o 




r 



g 



m 

s 

Q 
■< 



30 
< 

> 

8 

O 

"I 



Zone 


County 


12B 


Allegany 


96 


Anne Arundel 


10B 


Baltimore 


9B 


Baltimore City 


9B 


Calvert 


9B 


Caroline 


11B 


Carroll 


10B 


Cecil 


9B 


Charles 


9B 


Dorchester 


11B 


Frederick 


13A 


Garrett 



[^B.^l| 


Zone9B "^^^ Zone 12B 


KWN 


7nnP inR PffiS 7nnP 1/5A 


m^ 


Zone 11 B 




Zone 


County 


10B 


Harford 


10B 


Howard 


10B 


Kent 


10B 


Montgomery 


10B 


Prince Georges 


9B 


Queen Annes 


9B 


Somerset 


9B 


St Marys 


9B 


Talbot 


11B 


Washington 


9B 


Wicomico 


9B 


Worcester 



FIGURE 902.1(21) 
MARYLAND 




Zone 


Coyimty 


12A 


Barnstable 


14A 


Berkshire 


12A 


Bristol 


12A 


Dukes 


13A 


Essex 


14A 


Franklin 


14A 


Hampden 


14A 


Hampshire 


13A 


iVIiddiesex 


12A 


Nantucket 


13A 


Norfolk 


12A 


Plymouth 


13A 


Suffolk 


14A 


Worcester 



Zone 12A 
WtMi Zone 13A 

!?s:;;^l Zone 14A 





^ 



FIGURE 902.1(22) 
MASSACHUSETTS 



6) 
@9 


Zone 


County 


Zone 


County 




15 


Alcona 


17 


Keweenaw 




16 


Alger 


15 


Lake 




14A 


Allegan 


14A 


Lapeer 




15 


Alpena 


15 


Leelanau 




15 


Antrim 


14A 


Lenawee 




15 


Arenac 


14A 


Livingston 




17 


Baraga 


16 


Luce 




14A 


Barry 


16 


Mackinac 




15 


Bay 


14A 


Macomb 




15 


Benzie 


15 


Manistee 




14A 


Berrien 


16 


Marquette 




14A 


Branch 


15 


Mason 




14A 


Calhoun 


15 


Mecosta 




14A 


Cass 


16 


Menominee 




15 


Charlevoix 


15 


Midland 




15 


Cheboygan 


15 


Missaukee 




16 


Chippewa 


13A 


Monroe 




15 


Clare 


14A 


Montcalm 




14A 


Clinton 


15 


Montmorency 




15 


Crawford 


14A 


Muskegon 




16 


Delta 


15 


Newaygo 




16 


Dickinson 


14A 


Oakland 




14A 


Eaton 


15 


Oceana 




15 


Emmet 


15 


Ogemaw 




14A 


Genesee 


17 


Ontonagon 




15 


Gladwin 


15 


Osceola 




17 


Gogebic 


15 


Oscoda 




15 


Grand Traverse 


15 


Otsego 


o 


14A 


Gratiot 


14A 


Ottawa 




14A 


Hillsdale 


15 


Presque Isle 


1 


17 


Houghton 


15 


Roscommon 


m 


14A 


Huron 


14A 


Saginaw 


^ 

2 


14A 


Ingham 


14A 


Sanilac 


^ 


14A 


Ionia 


16 


Schoolcraft 


O 


15 


Iosco 


14A 


Shiawassee 


> 


17 


Iron 


14A 


St Clair 


15 


Isabella 


14A 


St Joseph 


m 


14A 


Jackson 


14A 


Tuscola 


m 

33 


14A 


Kalamazoo 


14A 


Van Buren 


O 


15 


Kalkaska 


13A 


Washtenaw 


-< 
O 


14A 


Kent 


13A 


Wayne 


o 

Z 

m 

< 

o 

z 






15 


Wexford 


o 
o 
o 
m 












Zone13A 
Zone 14A 
Zone 15 
Zone 16 
Zone 17 



FIGURE 902.1(23) 
MICHIGAN 



D 
O 
O 

m 




Zooe 


County 


Zone 


County 


17 


Aitkin 


17 


i\^arshall 


16 


Anoka 


15 


iViartin 


17 


Becker 


15 


iVicLeod 


17 


Beltrami 


16 


iVieeker 


16 


Benton 


16 


i\^ille Lacs 


16 


Big Stone 


16 


Morrison 


15 


Blue Earth 


15 


Mower 


15 


Brown 


15 


Murray 


17 


Carlton 


15 


Nicollet 


15 


Carver 


15 


Nobles 


17 


Cass 


17 


Norman 


16 


Chippewa 


15 


Olmsted 


16 


Chisago 


17 


Otter Tail 


17 


Clay 


17 


Pennington 


17 


Clearwater 


16 


Pine 


17 


Cook 


15 


Pipestone 


15 


Cottonwood 


17 


Polk 


17 


Crow Wing 


16 


Pope 


15 


Dakota 


15 


Ramsey 


15 


Dodge 


17 


Red Lake 


16 


Douglas 


15 


Redwood 


15 


Faribault 


15 


Renville 


15 


Fillmore 


15 


Rice 


15 


Freeborn 


15 


Rock 


15 


Goodhue 


17 


Roseau 


16 


Grant 


15 


Scott 


15 


Hennepin 


16 


Sherburne 


15 


Houston 


15 


Sibley 


17 


Hubbard 


17 


St Louis 


16 


Isanti 


16 


Stearns 


17 


Itasca 


15 


Steele 


15 


Jackson 


16 


Stevens 


16 


Kanabec 


16 


Swift 


16 


Kandiyohi 


16 


Todd 


17 


Kittson 


16 


Traverse 


17 


Koochiching 


15 


Wabasha 


15 


Lac Qui Parle 


17 


Wadena 


17 


Lake 


15 


Waseca 


17 


Lake Of The Woods 


15 


Washington 


15 


Le Sueur 


15 


Watonwan 


15 


Lincoln 


17 


Wilkin 


15 


Lyon 


15 


Winona 


17 


Mahnomen 


16 


Wright 






15 


Yellow Medicine 



F8GURE902J(2^ 



m 

5 

•z 
> 

r- 

m 

m 

O 
< 

O 
O 

z 
w 

m 

< 
> 

HI 
O 

z 

o 
o 
a 
m 




Zone 


County 


Zone 


County 


r- 


5A 


Adams (H) 


68 


Leflore (H) 




7B 


Alcorn 


5A 


Lincoln (H) 


H 


4B 


Amite (H) 


68 


Lowndes (H) 


2 


6B 


Attala (H) 


68 


Madison (H) 


> 


78 


Benton 


48 


Marion (H) 


W 


68 


Bolivar (H) 


78 


Marshall 




68 


Calhoun (H) 


68 


Monroe (H) 




68 


Carroll (H) 


68 


Montgomery (H) 




68 


Chickasaw (H) 


68 


Neshoba (H) 




68 


Choctaw (H) 


68 


Newton (H) 




5A 


Claiborne (H) 


6B 


Noxubee (H) 




5A 


Clarke (H) 


68 


Oktibbeha (H) 




68 


Clay (H) 


78 


Panola 




78 


Coahoma 


48 


Pearl River (H) 




5A 


Copiah (H) 


5A 


Perry (H) 




5A 


Covington (H) 


48 


Pike (H) 




78 


De Soto 


78 


Pontotoc 




5A 


Forrest (H) 


78 


Prentiss 




5A 


Franklin (H) 


78 


Quitman 




48 


George (H) 


68 


Rankin (H) 




5A 


Greene (H) 


68 


Scott (H) 




68 


Grenada (H) 


68 


Sharkey (H) 




48 


Hancock (H) 


5A 


Simpson (H) 




48 


Harrison (H) 


5A 


Smith (H) 




68 


Hinds (H) 


48 


Stone (H) 




68 


Holmes (H) 


68 


Sunflower (H) 




68 


Humphreys (H) 


78 


Tallahatchie 




68 


Issaquena (H) 


78 


Tate 




78 


Itawamba 


78 


Tippah 




48 


Jackson (H) 


78 


Tishomingo 




5A 


Jasper (H) 


78 


Tunica 




5A 


Jefferson (H) 


78 


Union 




5A 


Jefferson Davis (H) 


48 


Walthall (H) 




5A 


Jones (H) 


68 


Warren (H) 




68 


Kemper (H) 


68 


Washington (H) 




78 


Lafayette 


5A 


Wayne (H) 




48 


Lamar (H) 


68 


Webster (H) 




68 


Lauderdale (H) 


48 


Wilkinson (H) 




5A 


Lawrence (H) 


68 


Winston (H) 




68 


Leake (H) 


78 


Yalobusha 




78 


Lee 


68 


Yazoo (H) 





1 a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 



FIGURE 902.1(25) 
MISSISSIPPI 



m 



Zome County 

12B Adair 

12B Andrew 

13B Atchison 

12B Audrain 

9B Barry 

10B Barton 



Zone County 

11B Bates 

11B Benton 

10B Bollinger 

11B Boone 

12B Buchanan 

9B Butler 



Zone County 

12B Caldwell 

11 B Callaway 

11 B Camden 

9B Cape Girardeau 

12B Carroll 

10B Carter 



Zone County 

11 B Cass 

11 B Cedar 

12B Chariton 

10B Christian 

13B Clark 
Clay 



11B 



Zone 

12B 

11B 

11B 

10B 

10B 

10B 

12B 

12B 

10B 

10B 

9B 

10B 

11B 



County 

Clinton 

Cole 

Cooper 

Crawford 

Dade 

Dallas 

Daviess 

De Kalb 

Dent 

Douglas 

Dunklin 

Franklin 

Gasconade 






Zone 

13B 

10B 

12B 

13B 

11B 

11B 

12B 

11B 

9B 

10B 

11B 

9B 

10B 

11B 

12B 

10B 

11B 

10B 

12B 

11B 

12B 

12B 

12B 

10B 

11B 

12B 




Gentry 

Greene 

Grundy 

Harrison 

Henry 

Hickory 

Holt 

Howard 

Howell 

Iron 

Jackson 

Jasper 

Jefferson 

Johnson 

Knox 

Laclede 

Lafayette 

Lawrence 

Lewis 

Lincoln 

Linn 

Livingston 

Macon 

Madison 

Maries 

Marion 



Zone 

9B 

13B 

11B 

9B 

11B 

12B 

11B 

11B 

9B 

9B 

13B 

9B 

11B 

9B 

9B 

10B 

11B 

10B 

12B 

11B 

10B 

10B 

13B 

12B 

12B 

11B 



McDonald 

Mercer 

Miller 

Mississippi 

Moniteau 

Monroe 

Montgomery 

Morgan 

New Madrid 

Newton 

Nodaway 

Oregon 

Osage 

Ozark 

Pemiscot 

Perry 

Pettis 

Phelps 

Pike 

Platte 

Polk 

Pulaski 

Putnam 

Ralls 

Randolph 

Ray 



Zone 

10B 

9B 

11B 

13B 

13B 

9B 

10B 

12B 

10B 

11B 

10B 

10B 

10B 

10B 

9B 

9B 

12B 

9B 

10B 

11B 

11B 

10B 

10B 

10B 

13B 

10B 



County 

Reynolds 

Ripley 

Saline 

Schuyler 

Scotland 

Scott 

Shannon 

Shelby 

St Charles 

St Clair 

St Francois 

St Louis 

St Louis City 

Ste Genevieve 

Stoddard 

Stone 

Sullivan 

Taney 

Texas 

Vernon 

Warren 

Washington 

Wayne 

Webster 

Worth 

Wright 






5lA 



Zone 9B 
Zone 108 
Qmi Zone 11 B 
E2i] Zone12B 
^^ Zone 13B 



;j Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


r- 


15 


Beaverhead 


15 


Custer 


15 


Garfield 


15 


Lewis And Claris 


15 


Missoula 


16 


Powell 


16 


Sheridan 


16 


Valley 


S 


15 


Big Horn 


16 


Daniels 


16 


Glacier 


16 


Liberty 


15 


Musselshell 


15 


Prairie 


16 


Silver Bow 


15 


Wheatland 


^ 


16 


Blaine 


15 


Dawson 


15 


Golden Valley 


15 


Lincoln 


15 


Park 


15 


Ravalli 


15 


Stillwater 


15 


Wibaux 


m 

> 


15 


Broadwater 


16 


Deer Lodge 


16 


Granite 


15 


Madison 


15 


Petroleum 


15 


Richland 


15 


Sweet Grass 


15 


Yellowstone 


15 


Carbon 


15 


Fallon 


16 


Hill 


15 


McCone 


16 


Phillips 


16 


Roosevelt 


15 


Teton 


15 


Yellowstone 


"0 


15 


Carter 


15 


Fergus 


15 


Jefferson 


15 


Meagher 


16 


Pondera 


15 


Rosebud 


16 


Toole 




National Park 




15 


Cascade 


16 


Flathead 


15 


Judith Basin 


15 


Mineral 


15 


Powder River 


15 


Sanders 


15 


Treasure 








15 


Chouteau 


15 


Gallatin 


15 


Lake 

























o 



m 

•Si 



H 

o 
■z. 
> 
r 
m 

m 

33 

o 
-< 

o 
o 

z 

0) 

m 

33 

< 

o 
■z 

o 
o 
a 
m 




FIGURE 902.1(27) 
MONTANA 



Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


13B 


Adams 


13B 


Cass 


148 


Deuel 


13B 


Gosper 


13B 


Johnson 


13B 


Merrick 


13B 


Polk 


15 


Sioux 


14B 


Antelope 


14B 


Cedar 


14B 


Dixon 


14B 


Grant 


13B 


Kearney 


14B 


Morrill 


13B 


Red Willow 


14B 


Stanton 


14B 


Arthur 


13B 


Chase 


13B 


Dodge 


14B 


Greeley 


14B 


Keith 


13B 


Nance 


13B 


Richardson 


13B 


Thayer 


14B 


Banner 


14B 


Cherry 


13B 


Douglas 


13B 


Hall 


14B 


Keya Paha 


13B 


Nemaha 


14B 


Rock 


14B 


Thomas 


14B 


Blaine 


14B 


Cheyenne 


13B 


Dundy 


13B 


Hamilton 


14B 


Kimball 


13B 


Nuckolls 


13B 


Saline 


14B 


Thurston 


14B 


Boone 


13B 


Clay 


13B 


Fillmore 


13B 


Harlan 


14B 


Knox 


13B 


Otoe 


13B 


Sarpy 


14B 


Valley 


15 


Box Butte 


13B 


Colfax 


13B 


Franklin 


13B 


Hayes 


13B 


Lancaster 


13B 


Pawnee 


13B 


Saunders 


13B 


Washington 


14B 


Boyd 


14B 


Cuming 


13B 


Frontier 


13B 


Hitchcock 


14B 


Lincoln 


13B 


Perkins 


14B 


Scotts Bluff 


14B 


Wayne 


14B 


Brown 


14B 


Custer 


13B 


Furnas 


14B 


Holt 


14B 


Logan 


13B 


Phelps 


13B 


Seward 


138 


Webster 


13B 


Buffalo 


14B 


Dakota 


13B 


Gage 


14B 


Hooker 


14B 


Loup 


14B 


Pierce 


15 


Sheridan 


148 


Wheeler 


14B 


Burt 


15 


Dawes 


14B 


Garden 


14B 


Howard 


14B 


Madison 


13B 


Platte 


14B 


Sherman 


138 


York 


13B 


Butler 


13B 


Dawson 


14B 


Garfield 


13B 


Jefferson 


14B 


McPherson 















m 







FIGURE 902.1(2©) 




Zone 


County 


12B 


Carson City 


12B 


Churchill 


5B 


Clark 


138 


Douglas 


15 


Elko 


128 


Esmeralda 


15 


Eureka 


13B 


Humboldt 


138 


Lander 


128 


Lincoln 


138 


Lyon 


128 


Mineral 


128 


Nye 


128 


Pershing 


128 


Storey 


128 


Washoe 


15 


White Pine 



Zone 5B 
Zone 12B 
Zone 13B 
Zone 15 



FIGURE 902.1(29) 
NEVADA 






s 
m 



m 




Zone Coumfty 

15 Belknap 

15 Carroll 

1 5 Cheshire 

16 Coos 
15 Grafton 

15 Hillsborough 

1 5 Merrimack 

15 Rockingham 

15 Strafford 

15 Sullivan 




JEW HAMPSHDRE 



m 
> 

H 
O 

■z 
> 

r- 

m 

■z. 
m 

o 
■< 
o 

O 

z 

(A 

m 

73 
< 

H 

o 
z 

o 
o 
o 




> 



Zone 


County 


10B 


Atlantic 


12B 


8ergen 


11B 


Burlington 


108 


Camden 


10B 


Cape May 


10B 


Cumberland 


11B 


Essex 


108 


Gloucester 


118 


Hudson 


128 


Hunterdon 


118 


iViercer 


11B 


Middlesex 


118 


Monmouth 


128 


Morris 


118 


Ocean 


128 


Passaic 


108 


Salem 


128 


Somerset 


13A 


Sussex 


118 


Union 


128 


Warren 



Zone 10B 
Zone 11 B 
Zone 128 
Zone 13A 



FIGURE 902.1(31) 
NEW JERSEY 



nnl 




Zooe 


County 


Zomie 


County 


9B 


Bernalillo 


138 


Mckinley 


11B 


Catron 


15 


Mora 


7B 


Chaves 


7A 


Otero 


128 


Cibola 


8 


Quay 


138 


Colfax 


128 


Rio Arriba 


98 


Curry 


8 


Roosevelt 


98 


De Baca 


128 


San Juan 


7A 


Dona Ana 


12B 


San Miguel 


78 


Eddy 


138 


Sandoval 


98 


Grant 


138 


Santa Fe 


98 


Guadalupe 


8 


Sierra 


118 


Harding 


98 


Socorro 


7A 


Hidalgo 


15 


Taos 


78 


Lea 


118 


Torrance 


98 


Lincoln 


118 


Union 


138 


Los Alamos 


108 


Valencia 


7A 


Luna 







^ 



^ 



m.i'i 



Zone 7A 
Zone 7B 
Zone 8 
Zone 9B 
Zone 10B 
Zone 11 B 
Zone 12B 
Zone 13B 
Zone 15 



o 



FBGURE 902.1(32) 
NEW MEXICO 



O 



m 
m 

33 
Q 
■< 

O 

o 

Z 

w 
m 

< 








b^^ 


Zone 10B f. TJ 


Zone 14A 


(sua 


Zone 11B 1 ! 


Zone 1 5 


^a 


Zone 12B MM 


Zone 16 


iiiiiiiiiii 


Zone 13A 






Zone 


County 


Zone 


County 


14A 


Albany 


14A 


Niagara 


15 


Allegany 


15 


Oneida 


11B 


Bronx 


14A 


Onondaga 


15 


Broome 


14A 


Ontario 


15 


Cattaraugus 


12B 


Orange 


14A 


Cayuga 


14A 


Orleans 


14A 


Chautauqua 


14A 


Oswego 


15 


Chemung 


15 


Otsego 


15 


Chenango 


12B 


Putnam 


15 


Clinton 


10B 


Queens 


14A 


Columbia 


14A 


Rensselaer 


15 


Cortland 


11B 


Richmond 


15 


Delaware 


12B 


Rockland 


13A 


Dutchess 


14A 


Saratoga 


14A 


Erie 


14A 


Schenectady 


16 


Essex 


15 


Schoharie 


16 


Franklin 


15 


Schuyler 


15 


Fulton 


14A 


Seneca 


14A 


Genesee 


15 


St Lawrence 


14A 


Greene 


15 


Steuben 


16 


Hamilton 


11B 


Suffolk 


15 


Herkimer 


15 


Sullivan 


15 


Jefferson 


15 


Tioga 


10B 


Kings 


15 


Tompkins 


15 


Lewis 


15 


Ulster 


14A 


Livingston 


15 


Warren 


14A 


Madison 


15 


Washington 


14A 


Monroe 


14A 


Wayne 


14A 


Montgomery 


12B 


Westchester 


11B 


Nassau 


14A 


Wyoming 


108 


New York 


14A 


Yates 



o 

> 

H 

m 

> 



o 
o 

o 
m 



FIGURE 902.1(33) 
NEW YORK 



o 



m 





Zone 


Coyoty 


Zone 


Coun6y 


Zone 


County 


Zone 


County 


Zone 


Couinty 


Zone 


County 


Zone 


County 


Zone 


County 


t^ 


8 


Alamance 


8 


Caldwell 


7A 


Currituck 


7A 


Greene 


7A 


Lee 


6B 


New Hanover (H) 


7A 


Richmond 


6B 


Tyrrell (H) 


2 

H 


8 


Alexander 


7A 


Camden 


6B 


Dare (H) 


8 


Guilford 


7A 


Lenoir 


7A 


Northampton 


7A 


Robeson 


7A 


Union 


m 


11A 


Alleghany 


6B 


Carteret (H) 


8 


Davidson 


7A 


Halifax 


7A 


Lincoln 


6B 


Onslow (H) 


8 


Rockingham 


8 


Vance 


2 
^ 


7A 


Anson 


8 


Caswell 


8 


Davie 


7A 


Harnett 


9B 


Macon 


8 


Orange 


7A 


Rowan 


7A 


Wake 


11A 


Ashe 


8 


Catawba 


6B 


Duplin (H) 


9B 


Haywood 


9B 


Madison 


6B 


Pamlico (H) 


7A 


Rutherford 


8 


Warren 


O 


11A 


Avery 


8 


Chatham 


8 


Durham 


9B 


Henderson 


7A 


Martin 


7A 


Pasquotank 


6B 


Sampson (H) 


7A 


Washington 


^ 


6B 


Beaufort (H) 


9B 


Cherokee 


7A 


Edgecombe 


7A 


Hertford 


8 


McDowell 


6B 


Pender (H) 


7A 


Scotland 


11A 


Watauga 


m 


7A 


Bertie 


7A 


Chowan 


8 


Forsyth 


7A 


Hoke 


7A 


Mecklenburg 


7A 


Perquimans 


7A 


Stanly 


7A 


Wayne 


s 


6B 


Bladen (H) 


9B 


Clay 


8 


Franklin 


6B 


Hyde (H) 


11A 


Mitchell 


8 


Person 


9B 


Stokes 


9B 


Wilkes 




6B 


Brunswick (H) 


7A 


Cleveland 


7A 


Gaston 


8 


Iredell 


7A 


Montgomery 


7A 


Pitt 


9B 


Surry 


7A 


Wilson 


98 


Buncombe 


6B 


Columbus (H) 


7A 


Gates 


9B 


Jackson 


7A 


Moore 


7A 


Polk 


9B 


Swain 


8 


Yadkin 


o 
o 

2 
m 

< 


8 


Burke 


6B 


Craven (H) 


9B 


Graham 


7A 


Johnston 


7A 


Nash 


8 


Randolph 


9B 


Transylvania 


11A 


Yancey 


7A 


Cabarrus 


7A 


Cumberland 


8 


Granville 


6B 


Jones (H) 




















Zone 6B ^^ 


_ Zone 9B 


Zone 7A f^_ 


= Zone 11A 


Zones 





a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FBGURE 902.11(34) 



Zone 


County 


Zone 


County 


16 


Adams 


16 


Burleigh 


17 


Barnes 


17 


Cass 


17 


Benson 


17 


Cavalier 


16 


Billings 


16 


Dickey 


17 


Bottineau 


17 


Divide 


16 


Bowman 


16 


Dunn 


17 


Burke 


17 


Eddy 



Zone County 

16 Emmons 

17 Foster 

16 Golden Valley ]^ 

17 Grand Forks 

16 Grant 

17 Griggs 
16 Hettinger 



Zone 


County 


Zone 


County 


Zone 


County 


17 


Kidder 


16 


Mercer 


17 


Ramsey 


16 


La Moure 


16 


Morton 


16 


Ransom 


16 


Logan 


17 


Mountrail 


17 


Renville 


17 


iVlcHenry 


17 


Nelson 


16 


Richland 


16 


Mcintosh 


16 


Oliver 


17 


Rolette 


16 


McKenzie 


17 


Pembina 


16 


Sargent 


17 


McLean 


17 


Pierce 







Zone County Zone County 

17 Sheridan 17 Towner 

16 Sioux 17 Traill 

16 Slope 17 Walsh 

16 Stark 17 Ward 

17 Steele 17 Wells 



17 Stutsman 17 



Williams 



o 

r- 

i 
> 

H 

m 

> 

Ui 



m 

o 
< 
o 
o 
z 
w 
m 

33 

< 

H 
O 




Zone 16 
Zone 17 



FIGURE 902.1(35) 
NORTH DAKOTA 



m 




Zone 11 B 
Zone 12A 
Zone 12B 
Zone 13A 
Zone13B 
Zone 14A 



Zone 


County 


Zone 


County 


11B 


Adams 


128 


Licking 


13B 


Allen 


13A 


Logan 


13A 


Ashland 


13A 


Lorain 


13A 


Ashtabula 


14A 


Lucas 


11B 


Athens 


128 


Madison 


138 


Auglaize 


13A 


Mahoning 


12A 


Belmont 


13A 


Marion 


118 


Brown 


13A 


Medina 


128 


Butler 


118 


Meigs 


13A 


Carroll 


138 


Mercer 


ISA 


Champaign 


13A 


Miami 


13A 


Clark 


12A 


Monroe 


118 


Clermont 


128 


Montgomery 


128 


Clinton 


12A 


Morgan 


13A 


Columbiana 


13A 


Morrow 


128 


Coshocton 


128 


Muskingum 


13A 


Crawford 


12A 


Noble 


13A 


Cuyahoga 


13A 


Ottawa 


13A 


Darke 


14A 


Paulding 


14A 


Defiance 


12A 


Perry 


13A 


Delaware 


128 


Pickaway 


13A 


Erie 


118 


Pike 


12A 


Fairfield 


13A 


Portage 


128 


Fayette 


128 


Preble 


128 


Franklin 


138 


Putnam 


14A 


Fulton 


13A 


Richland 


118 


Gallia 


128 


Ross 


13A 


Geauga 


13A 


Sandusky 


128 


Greene 


118 


Scioto 


128 


Guernsey 


13A 


Seneca 


118 


Hamilton 


13A 


Shelby 


13A 


Hancock 


13A 


Stark 


13A 


Hardin 


13A 


Summit 


13A 


Harrison 


13A 


Trumbull 


14A 


Henry 


13A 


Tuscarawas 


118 


Highland 


13A 


Union 


12A 


Hocking 


138 


Van Wert 


13A 


Holmes 


118 


Vinton 


13A 


Huron 


128 


Warren 


118 


Jackson 


118 


Washington 


13A 


Jefferson 


13A 


Wayne 


13A 


Knox 


14A 


Williams 


13A 


Lake 


14A 


Wood 


118 


Lawrence 


13A 


Wyandot 



Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


if 


8 


Adair 


8 


Cherokee 


8 


Delaware 


7B 


Haskell 


7B 


Lincoln 


7B 


Muskogee 


8 


Payne 


7B 


Stephens 


> 

H 


9B 


Alfalfa 


6B 


Choctaw (H) 


9B 


Dewey 


7B 


Hughes 


8 


Logan 


8 


Noble 


7B 


Pittsburg 


10B 


Texas 


7B 


Atoka 


10B 


Cimarron 


9B 


Ellis 


7B 


Jackson 


6B 


Love (H) 


9B 


Nowata 


7B 


Pontotoc 


7B 


Tillman 


m 


10B 


Beaver 


7B 


Cleveland 


8 


Garfield 


6B 


Jefferson (H) 


9B 


Major 


7B 


Okfuskee 


7B 


Pottawatomie 


8 


Tulsa 


> 


8 


Beckham 


7B 


Coal 


7B 


Garvin 


6B 


Johnston (H) 


6B 


Marshall (H) 


8 


Oklahoma 


6B 


Pushmataha (H) 


8 


Wagoner 




8 


Blaine 


7B 


Comanche 


7B 


Grady 


9B 


Kay 


8 


Mayes 


8 


Okmulgee 


9B 


Roger Mills 


9B 


Washington 




7B 


Bryan 


7B 


Cotton 


9B 


Grant 


8 


Kingfisher 


7B 


McClain 


8 


Osage 


9B 


Rogers 


8 


Washita 




8 


Caddo 


9B 


Craig 


7B 


Greer 


7B 


Kiowa 


7B 


McCurtain 


9B 


Ottawa 


7B 


Seminole 


9B 


Woods 




8 


Canadian 


8 


Creek 


7B 


Harmon 


7B 


Latimer 


7B 


Mcintosh 


8 


Pawnee 


7B 


Sequoyah 


9B 


Woodward 




68 


Carter (H) 


8 


Custer 


9B 


Harper 


7B 


Le Flore 


7B 


Murray 

















m 
m 

30 

O 
■< 
o 
o 

z 
w 
m 

<: 
> 

H 
O 

z 
o 
o 
o 
m 







a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FIGURE 902.1(37) 
OKLAHOMA^ 




15 Baker 

10A Benton 

10A Clackamas 

11 A Clatsop 

11 A Columbia 

9A Coos 

14A Crook 

9A Curry 

14A Deschutes 

9A Douglas 

12A Gilliam 

15 Grant 

15 Harney 

12A Hood River 

11 A Jackson 

1 3B Jefferson 

9A Josephine 

14A Klamath 

15 Lake 

10A Lane 

11A Lincoln 

10A Linn 

12B Malheur 

10A Marion 

12A Morrow 

10A Multnomah 

10A Polk 

13B Sherman 

11 A Tillamook 

12A Umatilla 

13B Union 

15 Wallowa 

13B Wasco 

1 0A Washington 

13B Wheeler 

10A Yamhill 

V//A ZoneQA 1 

b^^^ ZonelOAl 

i 1 Zone 11 A ' 

[ ^ ; ;il Zone12Ai 

r~n Zone12B| 

'iWi Zonal SB ; 

dZ] Zone 14A ! 

[Zli Zone 15 1 



E 902.1 < 



m 



Zone County 

11 B Adams 

12A Allegheny 

1 3B Armstrong 

1 2A Beaver 

13B Bedford 

12B Berks 



Zone County 

13B Blair 

1 5 Bradford 

11 B Bucks 

14A Butler 

13B Cambria 

15 Cameron 



Zone County 

13B Carbon 

1 3B Centre 

11 B Chester 

14A Clarion 

15 Clearfield 

13B Clinton 



Zone County 

13B Columbia 

14A Crawford 

12B Cumberland 

12B Dauphin 

1 0B Delaware 

15 Elk 



Zone County 

14A Erie 

12A Fayette 

1 5 Forest 

11 B Franklin 

12B Fulton 

12A Greene 



.M^vB^B^ 






^^^^^JJi^^riHT^"^ ^ ^- 



O 



3 

■z. 

> 
Q 

> 

r- 
m 
z 
m 

33 
O 
< 
O 
O 

z 
(/) 
m 

< 
> 




Zone 


County 


Zone 


County 


Zone 


County 


12B 


Huntingdon 


14A 


Lawrence 


14A 


Mercer 


13B 


Indiana 


12B 


Lebanon 


12B 


Mifflin 


15 


Jefferson 


12B 


Lehigh 


13B 


Monroe 


12B 


Juniata 


13B 


Luzerne 


11B 


Montgomery 


14A 


Lackawanna 


13B 


Lycoming 


13B 


Montour 


11B 


Lancaster 


15 


McKean 


12B 

13B 

12B 

10B 

13B 

15 

13B 

13B 

13B 

14A 

15 

15 

13B 

14A 


Northampton 

Northumberland 

Perry 

Philadelphia 

Pike 

Potter 

Schuylkill 

Snyder 

Somerset 

Sullivan 

Susquehanna 

Tioga 

Union 

Venango 




"■" :'■- 


:::\ 






14A 


Warren 






'■ r:^ 


L 




12A 


Washington 






'.;::'I 


!) 




15 


Wayne 




./- ./ . 


;».t-; 


: 




13B 


Westmoreland 


«s^ 




M 


^ 


^ 


14A 
118 


Wyoming 
York 



t:^^ 



f 1 



Zone 10B 
Zone 11B 
Zone 12A 
Zone 12B 
Zone 13B 
EU Zone14A 
I t Zone 15 



FIGURE 902.1(39) 
PENNSYLVANIA 



m 
z 

O 

1= 
m 



m 




Zone Coyoty 
12A Bristol 
12A Kent 
12A Newport 
14A Providence 
12A Washington 



Zone 12A 
Zone 14A 



12.1(40) 
RHODE BSLAMD 



> 
m 

> 

CO 






H 
O 
Z 

IT 

m 

2 

m 

o 
o 

2 

CO 

m 
< 




Zone 


Coynfty 


Zone 


County 


7A 


Abbeville 


7A 


Greenwood 


6B 


Aiken (H) 


5A 


Hampton (H) 


5A 


Allendale (H) 


5A 


Horry (H) 


7A 


Anderson 


5A 


Jasper (H) 


5A 


Bamberg (H) 


7A 


Kershaw 


5A 


Barnwell (H) 


7A 


Lancaster 


5A 


Beaufort (H) 


7A 


Laurens 


5A 


Berkeley (H) 


6B 


Lee (H) 


6B 


Calhoun (H) 


6B 


Lexington (H) 


5A 


Charleston (H) 


6B 


Marion (H) 


7A 


Cherokee 


6B 


Marlboro (H) 


7A 


Chester 


6B 


McCormick (H) 


7A 


Chesterfield 


6B 


Newberry (H) 


6B 


Clarendon (H) 


7A 


Oconee 


5A 


Colleton (H) 


6B 


Orangeburg (H) 


68 


Darlington (H) 


7A 


Pickens 


6B 


Dillon (H) 


6B 


Richland (H) 


5A 


Dorchester (H) 


6B 


Saluda (H) 


6B 


Edgefield (H) 


7A 


Spartanburg 


7A 


Fairfield 


6B 


Sumter (H) 


6B 


Florence (H) 


7A 


Union 


5A 


Georgetown (H) 


6B 


Williamsburg (H) 


7A 


Greenville 


7A 


York 



Zone 5A 
Zone 6B 
^ Zone 7A 



a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FBGURE 902.1(41) 



g Zone Couoty 



Zone County 



ir 
m 
z 
m 

Q 



m 



15 Aurora 15 

15 Beadle 15 
14B Bennett 15 
14B Bon Homme 15 

16 Brookings 
1 6 Brown 



Brule 

Buffalo 

Butte 

Campbell 
14B Charles Mix 
16 Clark 



Zone County 

14B Clay 

16 Codington 

1 5 Corson 

15 Custer 

15 Davison 

16 Day 



Zone County 

16 Deuel 

1 5 Dewey 

14B Douglas 

15 Edmunds 

15 Fall River 

15 Faulk 



Zone County 

16 Grant 

14B Gregory 

15 Haakon 

16 Hamlin 
15 Hand 
15 Hanson 



Zone County 

15 Harding 

15 Hughes 

14B Hutchinson 

15 Hyde 

14B Jackson 

15 Jerauld 



Zone County 
15 Jones 

Kingsbury 

Lake 

Lawrence 

Lincoln 

Lyman 



15 
15 
15 
15 
15 




Zone 

16 

15 

16 

15 

14B 

15 

15 

15 

15 

15 

15 

16 

15 

15 

15 

15 

15 

14B 

14B 

15 

14B 

15 

14B 

15 



County 

Marshall 

McCook 

McPherson 

Meade 

Mellette 

Miner 

Minnehaha 

Moody 

Pennington 

Perkins 

Potter 

Roberts 

Sanborn 

Shannon 

Spink 

Stanley 

Sully 

Todd 

Tripp 

Turner 

Union 

Walworth 

Yankton 

Ziebach 



Zone 14B 
Zone 15 
Zone 16 



FIGURE 902.1(42) 



m 



Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


9B 


Anderson 


10B 


Claiborne 


10B 


Fentress 


9B 


Hawkins 


8 


Lauderdale 


8 


Meigs 


9B 


Roane 


9B 


Trousdale 


8 


Bedford 


9B 


Clay 


8 


Franklin 


8 


Haywood 


8 


Lawrence 


8 


Monroe 


9B 


Robertson 


10B 


Unicoi 


9B 


Benton 


9B 


Cocke 


9B 


Gibson 


8 


Henderson 


8 


Lewis 


9B 


Montgomery 


8 


Rutherford 


9B 


Union 


8 


Bledsoe 


8 


Coffee 


8 


Giles 


9B 


Henry 


8 


Lincoln 


8 


Moore 


10B 


Scott 


9B 


Van Buren 


8 


Blount 


8 


Crockett 


9B 


Grainger 


9B 


Hickman 


8 


Loudon 


10B 


Morgan 


8 


Sequatchie 


9B 


Warren 


8 


Bradley 


9B 


Cumberland 


9B 


Greene 


9B 


Houston 


9B 


Macon 


9B 


Obion 


9B 


Sevier 


9B 


Washington 


10B 


Campbell 


8 


Davidson 


9B 


Grundy 


9B 


Humphreys 


8 


Madison 


9B 


Overton 


7B 


Shelby (H) 


8 


Wayne 


9B 


Cannon 


9B 


De Kalb 


9B 


Hamblen 


9B 


Jackson 


8 


Marion 


8 


Perry 


9B 


Smith 


9B 


Weakley 


9B 


Carroll 


8 


Decatur 


8 


Hamilton 


9B 


Jefferson 


8 


Marshall 


10B 


Pickett 


9B 


Stewart 


9B 


White 


10B 


Carter 


9B 


Dickson 


10B 


Hancock 


10B 


Johnson 


9B 


Maury 


8 


Polk 


9B 


Sullivan 


8 


Williamson 


9B 


Cheatham 


8 


Dyer 


8 


Hardeman 


8 


Knox 


8 


McMinn 


9B 


Putnam 


9B 


Sumner 


9B 


Wilson 


8 


Chester 


7B 


Fayette (H) 


8 


Hardin 


9B 


Lake 


8 


McNairy 


8 


Rhea 


8 


Tipton 








m 
n 

Q 

< 

O 

o 
z 

W 

m 

<: 
> 



o 
o 

o 
m 



a. Counties identified with (H) shall be considered "hot and humid climate areas" for purposes of the application of Section 502.1 .1 . 

FIGURE 902.1(43) 

TEMNESSEE^ 



§ 


Zone 


Couoty 


Zope County 


Zone 


County 




Zone 


County 




Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 




(j3 


5A 


Anderson (H) 


68 Callahan 


48 Comal (H) 68 Denton 


78 


Gaines 


58 


Henderson (H) 


58 


Mason (H) 


58 


San Saba (H) 






6B 


Andrews 


28 Cameron (H) 


5B Comanche (H) 78 Dickens 


38 


Galveston (H) 


28 


Hidalgo (H) 


38 


Matagorda (H) 


58 


Schleicher (H) 




m 


5A 


Angelina (H) 


68 Camp 


58 Concho (H) 3C Dimmit (H) 


78 


Garza 


58 


Hill (H) 


3C 


Maverick (H) 


78 


Scurry 




> 


3B 


Aransas (H) 


98 Carson 


68 Cooke 8 Donley 


5A 


Gillespie (H) 


8 


Hockley 


58 


McCulloch (H) 


68 


Shackelford 




7B 


Archer 


68 Cass 


58 Coryell (H) 3C Duval (H) 


68 


Glasscock 


58 


Hood (H) 


58 


McLennan (H) 


5A 


Shelby (H) 




© 

'Z 


98 


Armstrong 


98 Castro 


78 Cottle 68 Eastland 


38 


Goliad (H) 


68 


Hopkins 


3C 


McMullen (H) 


98 


Sherman 




> 


3C 


Atascosa (H) 


48 Chambers (H) 


58 Crane (H) 68 Ector 


48 


Gonzales (H) 


5A 


Houston (H) 


48 


Medina (H) 


58 


Smith (H) 




m 


48 


Austin (H) 


5A Cherokee (H) 


58 Crockett (H) 5A Edwards (H) 


98 


Gray 


68 


Howard 


58 


Menard (H) 


58 


Somervell (H) 




2 

m 


98 


8ailey 


78 Childress 


78 Crosby 6B El Paso 


68 


Grayson 


6B 


Hudspeth 


68 


Midland (H) 


28 


Starr (H) 




3 
< 


5A 


8andera (H) 


78 Clay 


68 Culberson 58 Ellis (H) 


68 


Gregg 


68 


Hunt 


4B 


Milam (H) 


68 


Stephens 




48 


8astrop (H) 


8 Cochran 


98 Dallam 68 Erath 


48 


Grimes (H) 


98 


Hutchinson 


58 


Mills (H) 


68 


Sterling 




o 
o 


78 


Baylor 


68 Coke 


5B Dallas (H) 58 Falls (H) 


48 


Guadalupe (H) 


58 


Irion (H) 


68 


Mitchell 


78 


Stonewall 




\s^ 

2 


38 


Bee (H) 


58 Coleman (H) 


78 Dawson 68 Fannin 


8 


Hale 


6B 


Jack 


68 


Montague 


5A 


Sutton (H) 




m 


58 


Bell (H) 


68 Collin 


3C DeWitt(H) 48 Fayette (H) 


8 


Hall 


38 


Jackson (H) 


48 


Montgomery (H) 


8 


Swisher 




< 


48 


Bexar (H) 


78 Collingsworth 


98 Deaf Smith 68 Fisher 


58 


Hamilton (H) 


5A 


Jasper (H) 


98 


Moore 


58 


Tarrant (H) 




^ 


5A 


Blanco (H) 


48 Colorado (H) 


68 Delta 8 Floyd 


98 


Hansford 


68 


Jeff Davis 


68 


Morris 


68 


Taylor 




O 


78 


Borden 




78 Foard 


78 


Hardeman 


48 


Jefferson (H) 


78 


Motley 


5A 


Terrell (H) 




o 

o 


58 


Bosque (H) 




48 Fort Bend (H) 


48 


Hardin (H) 


28 


Jim Hogg (H) 


5A 


Nacogdoches (H) 


78 


Terry 




68 


Bowie 




68 Franklin 


4B 


Harris (H) 


3C 


Jim Wells (H) 


58 


Navarro (H) 


68 


Throckmorton 




m 


38 


Brazoria (H) 




^■i^Sir, ,. *■ : 58 Freestone (H) 


68 


Harrison 


58 


Johnson (H) 


5A 


Newton (H) 


68 


Titus 




® 


48 


Brazos (H) 




fllrll i"'"T 'i" ! 3C Frio(H) 


9B 


Hartley 


68 


Jones 


68 


Nolan 


58 


Tom Green (H) 






5A 

8 

28 


Brewster (H) 
Briscoe 
Brooks (H) 




-H.^^«^^>-^.. ~| - -f-" "1 


-^^/^ 


68 
58 
98 


Haskell 
Hays (H) 
Hemphill 


3C 
68 
5A 


Karnes (H) 
Kaufman 
Kendall (H) 


38 
98 
98 


Nueces (H) 

Ochiltree 

Oldham 


58 
5A 
5A 


Travis (H) 
Trinity (H) 
Tyler (H) 






fill' 


i' 1%^-^ 






^s^te 






58 


Brown (H) 




ST^^S 






;=^ 


% 


=^ ^«. ^ 






28 


Kenedy (H) 


48 


Orange (H) 


68 


Upshur 






48 


Burleson (H) 










• 




ZIJ ::::: 


f\\ 


WtTtfff'* ' 


^ffliwH 




78 


Kent 


68 


Palo Pinto 


58 


Upton (H) 






5A 


Burnet (H) 










wA 


mmr 


ss"i--- 


fl 


BSS| ; 


;«g 






5A 


Kerr (H) 


5A 


Panola (H) 


48 


Uvalde (H) 






48 
38 


Caldwell (H) 
Calhoun (H) 




rt 


if 


bfsipB 




J::H 


^ffl 






5A 
7B 
48 


Kimble (H) 
King 
Kinney (H) 


68 
98 
5A 


Parker 
Parmer 
Pecos (H) 


48 
68 
38 


Val Verde (H) 
Van Zandt 
Victoria (H) 






v/A --'aW^ 


^^i 








'^^m 


mI 


Bk 










^^-——^ 


ffi-^^'i^ -- 


"IrfT^ 


jB^p 


^^^^^^^M 


ii 


ill 


28 


Kleberg (H) 


5A 


Polk (H) 


48 


Walker (H) 










N 


^■J'J: i 


S----ffi''' 


fM. 






1 


m 


78 
3C 
68 
8 


Knox 

La Salle (H) 

Lamar 

Lamb 


98 
5A 
68 
98 


Potter 
Presidio (H) 
Rains 
Randall 


48 
68 
48 
3C 


Waller (H) 
Ward 

Washington (H) 
Webb (H) 








ji^p 


Wt 


m 


WJ^^^M^m^m^> 








1 ll 


W//y^ 


rl^^^^^^w 






iPlL 


Vy///// 










^M 


M 


III 


H 












Si 


LU-"^^^'"""''^'«m 


ffli; 


ffl 


ffl 


xyX^^X/Vyw^^w^^VW 


i^C^ 


^^ 


58 


Lampasas (H) 


58 


Reagan (H) 


38 


Wharton (H) 










^<LU| 




^W^ 


^^w 


^vw 


^^^^^^^^^llzM 


0- 




48 
48 
58 
48 


Lavaca (H) 
Lee (H) 
Leon (H) 
Liberty (H) 


5A 
68 
68 
38 


Real (H) 
Red River 
Reeves 
Refugio (H) 


98 
78 
78 
28 


Wheeler 
Wichita 
Wilbarger 
Willacy (H) 






'W/ 


/^ 


^ 


y/y%:^^i. ^&y| iS 












\ 


m 


^ 


i 


%^^P4S^ 








I'^r] Zone2B MM 


Zone 5E 


V/7/ 




%r 






^ 


V//. 


W/Ta"-^ 












Lr^ Zone3B ^ 
K4^A ZohrSC f;;^ 


Zone 6E 
Zone 7E 


^ 








58 


Limestone (H) 


98 


Roberts 


58 


Williamson (H) 












\fmi Zone4B iMM 


Zones 


p"^' ^^■'^'Ss 






98 


Lipscomb 


48 


Robertson (H) 


48 


Wilson (H) 












IHMIll Zone 5A R^ 


Zone 9E 


\>," *''"-; "'fll\ 






3C 
58 


Live Oak (H) 
Llano (H) 


68 
58 


Rockwall 
Runnels (H) 


68 
68 


Winkler 
Wise 












^■^ij-'-K-A, 












v^^ 






68 


Loving 


58 


Rusk (H) 


68 


Wood 






i a. Counties identified with (H) shall be consider 


ed "hot and humid climate areas" 






78 


Lubbock 


5A 


Sabine (H) 


8 


Yoakum 






^ for purposes of the application of Section 50 


2.1.1. 






78 


Lynn 


5A 


San Augustine (H) 


68 


Young 


> 
















48 


Madison (H) 


48 


San Jacinto (H) 


28 


Zapata (H) 


m 
































68 
68 


Marion 
Martin 


3C 


San Patricio (H) 


3C 


Zavala (H) 


> 

m 



O 
© 

1 
HI 

m 



o 



m 




Zone 


County 


14B 


Beaver 


12B 


Box Elder 


15 


Cache 


14B 


Carbon 


15 


Daggett 


128 


Davis 


15 


Duchesne 


148 


Emery 


148 


Garfield 


108 


Grand 


128 


Iron 


128 


Juab 


108 


Kane 


138 


Millard 


15 


Morgan 


138 


Piute 


15 


Rich 


128 


Salt Lake 


138 


San Juan 


148 


Sanpete 


138 


Sevier 


15 


Summit 


128 


Tooele 


15 


Uintah 


128 


Utah 


15 


Wasatch 


108 


Washington 


148 


Wayne 


128 


Weber 



> 



^ ZonelOB 
r7^ Zone 12B 
Zone13B 
Zone 148 
Zone 15 



FIGURE 902.1(45) 
UTAH 



PfO 




Zone 


County 


15 


Addison 


15 


Bennington 


16 


Caledonia 


15 


Ciiittenden 


16 


Essex 


15 


Franklin 


15 


Grand Isle 


16 


Lamoille 


16 


Orange 


16 


Orleans 


15 


Rutland 


16 


Washington 


15 


Windham 


15 


Windsor 



Zone 15 
Zone 16 



FDGURE 902.1(46) 
VEF 



0) 



ir 
m 

m 

■=< 
o 

o 



o 

o 
o 
o 

m 



Zooe 


Coynty 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 


Zone 


County 




8 


Accomack 


98 


Campbell 


118 


Floyd 


8 


Isle Of Wight 


118 


Montgomery 


108 


Orange 


108 


Prince William 


108 


Scott 




9B 


Albemarie 


98 


Caroline 


98 


Fluvanna 


8 


James City 


8 


Nansemond 


118 


Page 


118 


Pulaski 


118 


Shenandoah 


10B 


Alleghany 


118 


Carroll 


108 


Franklin 


98 


King And Queen 


98 


Nelson 


108 


Patrick 


118 


Rappahannock 


118 


Smyth 


rn 

2 


9B 


Amelia 


8 


Charles City 


118 


Frederick 


98 


King George 


8 


New Kent 


98 


Pittsylvania 


8 


Richmond 


8 


Southampton 


> 


98 


Amherst 


9B 


Charlotte 


108 


Giles 


98 


King William 


8 


Northampton 


98 


Powhatan 


98 


Roanoke 


108 


Spotsylvania 


"0 


98 


Appomattox 


8 


Chesterfield 


8 


Gloucester 


8 


Lancaster 


8 


Northumberland 


98 


Prince Edward 


98 


Rockbridge 


10B 


Stafford 




108 


Arlington 


11B 


Clarke 


9B 


Goochland 


108 


Lee 


98 


Nottoway 


8 


Prince George 


118 


Rockingham 


8 


Surry 




11B 


Augusta 


108 


Craig 


118 


Grayson 


108 


Loudoun 










108 


Russell 


8 


Sussex 




118 


Bath 


108 


Culpeper 


108 


Greene 


98 


Louisa 














118 


Tazewell 




98 


Bedford 


98 


Cumberland 


8 


Greensville 


98 


Lunenburg 














118 


Warren 




11B 


Bland 


108 


Dickenson 


98 


Halifax 


118 


Madison 














118 


Washington 




98 


Botetourt 


8 


Dinwiddie 


98 


Hanover 


8 


Mathews 














8 


Westmoreland 




8 


Brunswick 


98 


Essex 


8 


Henrico 


98 


Mecklenburg 














108 


Wise 




10B 


Buchanan 


108 


Fairfax 


108 


Henry 


8 


Middlesex 














118 


Wythe 




98 


Buckingham 


108 


Fauquier 


118 


Highland 


















8 


York 





.:<s<<: 






Zone 8 
Zone 98 
Zone 10B 
Zone11B 


\^^:-li^^l 


[iltl'H 




t^WI 





Independent Cities 

Zone City 

108 Alexandria 

98 Bedford 

118 Bristol 

98 Buena Vista 

98 Charlottesville 8 

8 Chesapeake 



Zone City Zone City 

10B Clifton Forge 108 Fairfax 

8 Colonial Heights 108 Falls Church 

108 Covington 8 Franklin 8 

98 Danville 108 Fredericksburg 98 

Emporia 11 B Galax 9B 



Zone City Zone City 

8 Hampton 108 Manassas 

118 Harrisonburg 108 Manassas Park 

8 Hopewell 108 Martinsville 

Lexington 8 Newport News 

Lynchburg 8 Norfolk 



Zone 


City 


Zone 


City 


Zone 


City 


10B 


Norton 


8 


Richmond 


8 


Suffolk 


8 


Petersburg 


98 


Roanoke 


8 


Virginia Beach 


8 


Poquoson 


98 


Salem 


118 


Waynesboro 


8 


Portsmouth 


98 


South Boston 


8 


Williamsburg 


118 


Radford 


118 


Staunton 


118 


Winchester 



FIGURE 902.1(47) 
VIRGINIA 



m 

m 

< 

o 

a 
Q 
o 




Zone 11AEISD 
Zone 11 B 
Zone 12A 



Zone 14A 
Zone 15 



Zone 


Couofty 


12B 


Adams 


12A 


Asotin 


11B 


Benton 


12B 


Chelan 


12A 


Clallam 


11A 


Clark 


12A 


Columbia 


11A 


Cowlitz 


14A 


Douglas 


15 


Ferry 


118 


Franklin 


12A 


Garfield 


128 


Grant 


11A 


Grays Harbor 


12A 


Island 


11A 


Jefferson 


10A 


King 


11A 


Kitsap 


14A 


Kittitas 


12A 


Klickitat 


11A 


Lewis 


15 


Lincoln 


11A 


Mason 


15 


Okanogan 


11A 


Pacific 


15 


Pend Oreille 


11A 


Pierce 


12A 


San Juan 


11A 


Skagit 


11A 


Skamania 


11A 


Snofiomish 


14A 


Spokane 


15 


Stevens 


11A 


Thurston 


11A 


Wahkiakum 


118 


Walla Walla 


12A 


Whatcom 


14A 


Whitman 


12A 


Yakima 



o 

c 

> 



FIGURE 902.1(48) 
WASHIMGTOM 







;:;ri:;;;;;;::i::::f Zone 


County 
Barbour 


Zone 
10B 


County 
Kanawha 


Zone 
13A 


County 


:| ^^SW^ 13A 


Pocahontas 


^ 118 


Berkeley 


12A 


Lewis 


13A 


Preston 


10B 


Boone 


10B 


Lincoln 


10B 


Putnam 


11B 


Braxton 


10B 


Logan 


12A 


Raleigh 


12A 


Brooke 


12A 


Marion 


13A 


Randolph 


10B 


Cabell 


12A 


Marshall 


11B 


Ritchie 


11B 


Calhoun 


11B 


Mason 


11B 


Roane 


11B 


Clay 


11B 


Mcdowell 


12A 


Summers 


12A 


Doddridge 


11B 


Mercer 


12A 


Taylor 


12A 


Fayette 


12A 


Mineral 


13A 


Tucker 


11B 


Gilmer 


10B 


Mingo 


11B 


Tyler 


13A 


Grant 


12A 


Monongalia 


12A 


Upshur 


12A 


Greenbrier 


11B 


Monroe 


10B 


Wayne 


11B 


Hampshire 


11B 


Morgan 


12A 


Webster 


12A 


Hancock 


12A 


Nicholas 


12A 


Wetzel 


12A 


Hardy 


12A 


Ohio 


11B 


Wirt 


12A 


Harrison 


13A 


Pendleton 


11B 


Wood 


11B 


Jackson 


11B 


Pleasants 


118 


\A/yoming 


11B 


Jefferson 










FIGURE 902.1(49) 












WEST VIRGINIA 














Zone 15 
Zone 16 
Zone 1 7 



Zom 


B Coooty 


Zone 


Counilly 


15 


Adams 


15 


iViarathon 


17 


Ashland 


15 


IViarinette 


16 


Barron 


15 


Marquette 


17 


Bayfield 


15 


Menominee 


15 


Brown 


15 


Milwaukee 


15 


Buffalo 


15 


Monroe 


17 


Burnett 


15 


Oconto 


15 


Calumet 


17 


Oneida 


15 


Chippewa 


15 


Outagamie 


15 


Clark 


15 


Ozaukee 


15 


Columbia 


15 


Pepin 


15 


Crawford 


15 


Pierce 


15 


Dane 


16 


Polk 


15 


Dodge 


15 


Portage 


15 


Door 


17 


Price 


17 


Douglas 


15 


Racine 


15 


Dunn 


15 


Richland 


15 


Eau Claire 


15 


Rock 


17 


Florence 


16 


Rusk 


15 


Fond Du Lac 


15 


Sauk 


17 


Forest 


17 


Sawyer 


15 


Grant 


15 


Shawano 


15 


Green 


15 


Sheboygan 


15 


Green Lake 


15 


St Croix 


15 


Iowa 


17 


Taylor 


17 


Iron 


15 


Trempealeau 


15 


Jackson 


15 


Vernon 


15 


Jefferson 


17 


Vilas 


15 


Juneau 


15 


Walworth 


15 


Kenosha 


17 


Washburn 


15 


Kewaunee 


15 


Washington 


15 


La Crosse 


15 


Waukesha 


15 


Lafayette 


15 


Waupaca 


17 


Langlade 


15 


Waushara 


17 


Lincoln 


15 


Winnebago 


15 


Manitowoc 


15 


Wood 



FIGUIRE 902.1(50) 



Ui 



z 
> 
d 
o 

> 

V 

m 
z 
m 

33 
O 
-< 

o 

O 

z 

0) 

m 
> 

H 

O 
Z 

o 
o 
o 

m 




Zone 


County 


16 


Albany 


15 


Big Horn 


15 


Campbell 


16 


Carbon 


15 


Converse 


15 


Crook 


15 


Fremont 


14B 


Goshen 


15 


Hot Springs 


15 


Johnson 


15 


Laramie 


17 


Lincoln 


15 


Natrona 


15 


Niobrara 


15 


Park 


14B 


Platte 


15 


Sheridan 


17 


Sublette 


16 


Sweetwater 


17 


Teton 


16 


Uinta 


15 


Washakie 


15 


Weston 



Zone 14B 
Zone 15 
Zone 16 
Zone 17 



FIGURE 902.1(51) 
WYOMING 



O 

> 

-I 
m 

> 



This chapter Usts the standards that are referenced in various sections of this document. The standards are hsted herein by the 
promulgating agency of the standard, the standard identification, the effective date and title, and the section or sections of this 
document that reference the standard. The application of the referenced standards shall be as specified in Section 107. 



American Architectural Manufacturers Association 

1827 Walden Office Square 

Suite 104 

Schaumburg, IL 60173-4268 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



101/I.S.2— 97 
101/I.S.2/NAFS— 02 



Voluntary Specifications for Aluminum, Vinyl (PVC) and Wood Windows 
and Glass Doors 



Voluntary Performance Specification for Windows, Skylights and Glass Doors. 



Table 502.1.4.1, 601.3.2.2, 802.3.1 
802.3.1 



Air Movement and Control Association International 

30 West University Drive 

Arlington Heights, IL 60004-1806 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



500—89 



Test Methods for Louvers, Dampers, and Shutters 802.3.4 



American National Standards Institute 

25 West 43rd Street 

Fourth Floor 

New York, NY 10036 

Referenced 

in code 

Title section number 

Gas Water Heaters, Volume III - Storage Water Heaters with Input Ratings Above 75,000 Btu per Hour, 

Circulating Tank and Instantaneous— with Addenda Z21.10.3a-99 Table 504.2.1, Table 804.2 

Gas-Fired Low-Pressure Steam and Hot Water Boilers Table 803.2.2(5) 

Gas-Fired Central Furnaces— with Addenda Z21.47a-2000 Table 803.2.2(4) 

Gas-Fired Pool Heaters— with Z21.56a— with Addenda-1999 Table 504.2.1 

Gas Unit Heaters— with Addendum Z83.8a-1997 Table 803.2.2(4) 

Gas-fired Duct Furnaces Table 803.2.2(4) 



Standard 
reference 
number 



Z2 1.1 0.3— 98 

Z21. 13—99 
Z2 1.47— 00 
Z2 1.56— 98 
Z83.8— 96 
Z83.9— 96 



Air Conditioning and Refrigeration Institute 

4301 North Fairfax Drive 

Suite 200 

Ariington, VA 22203 

Referenced 

in code 

Title section number 

Unitary Air-Conditioning and Air-Source Heat Pump Equipment Table 503.2, 

Table 803.2.2(1), Table 803.2.2(2) 

Standard for Packaged Terminal Air-Conditioning and Heat Pumps 202, Table 803.2.2(3) 

Ground Water-Source Heat Pumps Table 803.3.2(2) 

Commercial and Industrial Unitary Air-Conditioning and Heat Pump 

Equipment Table 803.2.2(1), Table 803.2.2(2) 

Commercial and Industrial Unitary Air-Conditioning Condensing Units Table 803.3.2(1) 

Remote Mechanical-Draft Air-Cooled Refrigerant Condensers Table 803.3.2(6) 

Water Chilling Packages Using the Vapor Compression Cycle Table 803.3.2(2) 



Standard 
reference 
number 



210/240—94 

310/380—93 

325—98 

340/360—2000 

365—94 

460-94 

550/590—98 



2003 DMTERMATIOMAL EMERGY COiMSERVATlON COD! 



REFERENCED STANDARDS 



560—92 
13256-1 (1998) 



ARI — contioyed 

Absorption Water Chilling and Water Heating Packages Table 803.3.2(2) 

Water-source Heat Pumps - Testing and Rating for Performance - Part 1: Water-to- Air and 

Brine-to- Air Heat Pumps Table 803.2.2(2) 



American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. 

1791 Tullie Circle, NE 

Atlanta, GA 30329-2305 

Referenced 

in code 

Title section number 

A Method of Determining Air Change Rates in Detached Dwellings 402.2.3.9 

Testing and Rating Pool Heaters Table 804.2 

Water-source Heat Pumps - Testing and Rating for Performance - Part 1 : Water-to- Air and 

Brine-to-Air Heat Pumps Table 803.2.2(2) 

Thermal Environmental Conditions for Human Occupancy 202 

Energy Standard for Buildings Except Low-Rise Residential Buildings 701.1, 801.2, 802.1, 802.2 

ASHRAE HVAC Applications Handbook-1999 504.2.2 

ASHRAE Fundamentals Handbook- 2001 Table 302.1, 402.4.2, 502.2.1.1.2, 

502.2.2,503.3.1,803.2.1 
ASHRAE HVAC Systems and Equipment Handbook-2000 503.3.1, 803.2.1 



Standard 
reference 
number 



136—1993 (RA 2001) 

146-1998 

13256-1 (1998) 

55—1992 
90.1—2001 
ASHRAE— 1999 
ASHRAE— 2001 

ASHRAE— 2000 



American Society of Mechanical Engineers 

Three Park Avenue 

New York, NY 10016-5990 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



A112.18.1-2000 
PTC 4.1- 1964 



Plumbing Fixture Fittings. 
Steam Generating Units . . 



504.6.1 

Table 803.2.2(5) 



ASTM International 

100 Ban- Harbor Drive 

West Conshohocken, PA 19428-2859 

Referenced 

in code 

Title section number 

Standard Test Method for Steady-State Thermal Performance of Building Assemblies by 

Means of a Guarded Hot Box 602.1.1.1 

Standard Test Method for Steady-State Thermal Transmission Properties by Means of the 

Heat Flow Meter Apparatus Table 503.3.3.3 

Standard Test Method for Thermal Performance of Building Assemblies by Means of a Cahbrated Hot Box 602.1.1.1 

Standard Test Methods for Water Vapor Transmission of Materials 502.1.1, 602.1.7, 

802.1.2 
Test Method for Determining the Rate of Air Leakage Through Exterior Windows, 

Curtain Walls and Doors Under Specified Pressure Differences Across the Specimen 502.1.3, 

Table 502.1.4.1, 802.3.2, 802.3.7 
Standard Test Method for Determining Air Leakage Rate by Fan Pressurization 402.2.3.9 



Standard 
reference 
number 



C 236— 93el 

C 518— 98 

C 976 - 90(1996)96el 
E 96-00 

E 283—99 
E 779—99 



CT 



1. 



Cooling Technology Institute 
261 1 FM 1960 West, Suite H-200 
Houston, TX 77068-3730 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



STD-201 (1996) 
ATC-105 (1997) 



Certification Standard for Commercial Water Cooling Towers . 
Acceptance Test Code for Water Cooling Towers 



Table 803.3.2(6) 
Table 803.3.2(6) 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



REFEREMCED STAiSSDARDS 



U.S. Department of Energy 

c/o Superintendent of Documents 

D^^i \^S* U.S. Government Printing Office 
\^E!j Washington, DC 20402-9325 

Standard Referenced 

reference in code 

number Title section number 

10 CFR Part 430, Subparts, 
Appendix E (1998) Uniform Test Method for Measuring the Energy Consumption of 

Water Heaters Table 504.2.1, Table 803.2.2(4), Table 804.2 

10 CFR Part 430, 

Subpart B, Appendix N (1998) Uniform Test Method for Measuring the Energy Consumption of Furnaces and Boilers Table 503.2, Table 803.2.2(5), 

Table 804.2 
10 CFR Part 430, Subparts, 

Test Procedures (1998) Energy Conservation Program for Consumer Products 202 

ORNL/Sub-86-72143/1-88 Building Foundation Design Handbook Table 502.2, 502.2.1.5, 502.2.3.5 

DOE/EIA— 0376 

(Current Edition) State Energy Prices and Expenditure Report 806.2.3 



I 



Hydronics Institute, Division of the Gas Appliance Manufacturers Association 

PO. Box 218 

Berkeley Heights, NJ 07054 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



HBS 



I=B=R - Testing and Rating Standard for Heating Boilers, 1989 Ed Table 803.2.2(5) 



IC 



International Code Council, Inc. 

5203 Leesburg Pike, Suite 600 

Falls Church, VA 22041-3401 

Referenced 

in code 

Title section number 

International Building Code® 201 .3 

ICC Electrical Code™ 201.3 

International Existing Building CodeTw 101.2 

International Fire Code® 201.3 

International Fuel Gas Code® 201.3 

International Mechanical Code® 201.3, 202, 503.3.3.4, 503.3.3.4.1, 503.3.3.4.2, 803.2.5, 

803.2.6, 803.2.8.1, 803.2.8.1.1, 803.2.8.1.2, 803.3.4, 803.3.8.1 
International Plumbing Code® 201 .3 



Standard 
reference 
number 



IBC— 03 
ICC EC— 03 
lEBC— 03 
IFC— 03 
IFGC— 03 
IMC— 03 

IPC— 03 






Illuminating Engineering Society of North America 
120 Wall Street, 17th Floor 
New York, NY 10005-4001 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



90.1-2001 



Energy Standard for Buildings Except Low-Rise Residential Buildings 701.1, 801.2, 802.1, 802.2 



Ml^' 



National Fenestration Rating Council, Inc. 

8484 Georgia Avenue 

Suite 320 

Silver Spring, MD 20910 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



100—01 



Procedure for Determining Fenestration Product U-Factors . 



102.5.2,601.3.2, 
601.3.2.1 



2003 DMTERNATIONAL ENERGY CONSERVATDOIM CODE*^ 



REFERENCED STANDARDS 



200—01 
400-01 



NFRC— continued 
Procedure for Determining Fenestration Product Solar Heat Gain Coefficients and 
Visible Transmittance at Normal Incidence 



Procedure for Determining Fenestration Product Air Leakage 



102.5.2,601.3.2,601.3.2.1 

Table 502.1.4.1, 601.3.2.2, 802.3.1 



NOAA 



National Oceanic and Atmospheric Administration 

U.S. Department of Commerce 

c/o Superintendent of Documents 

U.S. Government Printing Office 

Washington, DC 20402-9325 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



CLIM 81-2 



Annual Degree Days To Selected Bases 1961-1990 Normals Table 302.1, 402.2.3.7 



Sheet Metal and Air Conditioning Contractors National Association, Inc. 
(^ IV/f A f^ 1^ A 402 1 Lafayette Center Drive 



Chantmy,VA 20151-1209 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



SMACNA— 85 



HVAC Air Duct Leakage Test Manual 402.2.3.8, 803.3.6 



UL 



Underwriters Laboratories Inc. 

333 Pfmgsten Road 

Northbrook, IL 60062-2096 

Referenced 

in code 

Title section number 

Closure Systems for Use with Rigid Air Ducts and Air Connectors 

— with Revisions through December 1998 503.3.3.4.3, 803.2.8 

Closure Systems for Use with Flexible Air Ducts and Air Connectors 

—with Revisions through December 1998 503.3.3.4.3, 803.2.8 

Oil-Fired Central Furnaces — with Revisions through January 1999 Table 803.2.2(4) 

Oil-Fired Unit Heaters— with Revisions through January 1999 Table 803.2.2(4), 



Standard 
reference 
number 



181 A— 98 

181B— 95 

727—98 
731—95 



WDMA 



Window and Door Manufacturers Association 

1400 East Touhy Avenue, Suite 470 

Des Plaines, IL 60018 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



101/I.S.2— 97 
101/I.S.2/NAFS— 02 



Voluntary Specifications for Aluminum, Vinyl (PVC) and Wood Windows and 

Glass Doors 

Voluntary Performance Specification for Windows, Skylights and Glass Doors. 



Table 502.1.4.1, 601.3.2.2, 802.3.1 
802.3.1 



200 



2003 INTERNATIONAL ENERGY CONSERVATION CODE® 



The sections and construction details in Details 502.2.1.5(1) and 502.2.1.5(2), and Tables 502.2.3.1(1), 502.2.3.1(2), 502.2.3.1(3), 
502.2.3.2, 502.2.3.3, 502.2.3.5 and 502.2.3.6 are intended to be representative and not all-inclusive. Adopting agencies are encour- 
aged to add construction details and sections appropriate to their specific areas. Utilization of these tables should be correlated with 
local industry group practices and model code research recommendations. 



I 



For SI: 1 inch = 25.4 mm. 



^ 




DETAIL 502.2.1 .5(1) 




<<^<\X^\X^^; 




^ 



^ 
k 



vv7XVXy-XVXV>Ny, 



For SI: 1 inch = 25.4 mm. 



4 



TAIL 502.2.1 .5(2) 
If^SULATlOM— Bi^S' 



).2 



2003 8MTERWAT10MAL EMiRGY COMSERVATIOIM CODE® 



APPENDIX 



TABLE 502.2.3.1(11) 

WALL ASSEMBLSES 

(O^ selected shall not exceed the Uo determined by Section 502.2.3.1 for any wall section) 



WALL DETAILS' 


TYPE AND 

SPACING OF 

FRAiVIING 

(nominal) 


fl- VALUE OF 

CAVITY 
INSULATION 


R-VALUE OF 
SHEATHING 


U " 


Typical schedules: 


Typical interior finish — 

1 . Gypsum wallboard; 

2. Lath and plaster; or 

3. Vg" minimum wood paneling 


Typical exterior finish — 

1. Stucco; 

2. Wood or plywood siding; or 

3. Brick veneer 


WOOD STUD CONSTRUCTION 


4" Studs 
@ 16" o.c. 


11 


noninsulating 


0.085 


13 


noninsulating 


0.076 


13 


3 


0.064 


13 


5 


0.056 


13 


7 


0.051 


15 


noninsulating 


0.070 




1 


jT 

EXTERIOR FINISH 


15 


3 


0.059 


15 


5 


0.053 


IN 1 ERIOR rINIbrI 
INSULATION 


1 


15 


7 


0.048 


6" Studs 
@ 16" o.c. 


19 


noninsulating 


0.058 




1 


' SHEATHING 


19 


3 


0.050 


19 


5 


0.046 




19 


7 


0.041 


21 


noninsulating 


0.052 


21 


3 


0.046 


21 


5 


0.042 


21 


7 


0.038 


6" Studs 
@ 24" o.c. 


21 


noninsulating 


0.050 


STEEL STUD CONSTRUCTION 


4" Studs 
@ 16" o.c. 


11 


noninsulating 


0.14 




j 


EXTERIOR FINISH 


13 


noninsulating 


0.13 


6" Studs 
@ 16" o.c. 


19 


noninsulating 


0.11 


INTERIOR FINISH 


cupATHiMri 


4" Studs 
@ 24" o.c. 


11 


noninsulating 


0.12 


13 


noninsulating 


0.11 




1 




6" Studs 
@ 24" o.c. 


19 


noninsulating 


0.10 



For SI: 1 inch = 25.4 mm. 

a. Details shown are for insulation and are not complete construction details. 

b. [/„, calculated based on the ASHRAE Fundamentals Handbook 2001. 



202 



2003 JNTERNATIONAL ENERGY CONSERVATSON CODE*' 



MBLE 502.2.3.1(2) 
WALL ASSEMBLIES 
,sellectedl shall ooH exceed She C/^ determined by Section 502.2.3.1 for any wall section) 



WALL DETAILS' | R-VALUE OR TYPE 


U^^AND RoFOR WALL THOCKNESS LISTED' 


PLAIN CONCRETE WiASONRY BLOCK CONSTRUCTION 




6" 


8" 


10" 


12" 


Plain block wythe 


No insulation, no interior finish 


u. 

K 


0.37 
2.70 


0.33 
3.03 


0.31 

3.23 


0.30 
3.33 


Loose fill in cores, no interior finish 


Ro 


0.18 
5.56 


0.13 
7.69 


0.11 
9.09 


0.09 
11.11 


Interior finish: V2" gypsum 
board on furring strips 


No insulation, interior finish 


K 
K 


0.24 
4.17 


0.23 
4.35 


0.22 
4.55 


0.21 
4.76 


No insulation, foil-backed gypsum board interior finish 




0.18 
5.56 


0.17 
5.88 


0.16 
6.25 


0.16 
6.25 


Cavity insulation and interior 
finish: V/ gypsum board on 
furring strips 


1" extruded polystyrene, interior finish 


Ro 


0.13 
7.69 


0.13 
7.69 


0.12 
8.33 


0.12 
8.33 


2" expanded polystyrene, interior finish 


Ro 


0.09 
11.11 


0.09 
11.11 


0.09 
11.11 


0.09 
11.11 


2" extruded polystyrene, interior finish 


Ro 


0.08 
12.50 


0.08 
12.50 


0.08 
12.50 


0.08 
12.50 


2" polyisocyanurate, interior finish 


Ro 


0.06 
16.67 


0.06 
16.67 


0.06 
16.67 


0.06 
16.67 


Interior finish: V2" gypsum 
board over fibrous batt or loose 
fill between studs out from wall 


R- 11, 2 X 3 studs, interior finish 


Ro 


0.07 
14.29 


0.07 
14.29 


0.07 
14.29 


0.07 
14.29 


R- 13, 2 X 3 studs, interior finish 


Ro 


0.06 
16.67 


0.06 
16.67 


0.06 
16.67 


0.06 
16.67 


R- 19, 2 X 4 studs, interior finish 


Ro 


0.05 
20.00 


0.05 
20.00 


0.05 
20.00 


0.05 
20.00 


WiULTl-WYTHE WALLS 


U^AMD Rg FOR WALL THICKNESS LISTED'''^'** 




8" 


10" 


12" 


14" 


Plain block and clay wythes 


No insulation, 
no interior finish 


Ro 


0.32 
3.13 


0.26 
3.85 


0.24 
4.17 


0.22 
4.55 


Loose fill in cavity, 
no interior finish 


Ro 


NA 
NA 


0.12 
8.33 


0.12 
8.33 


0.11 
9.09 


Cavity insulation and interior 
finish: ^l{ gypsum board on 
furring strips 


Loose fill, 
interior finish 


Ro 


0.11 
9.03 


0.10 
10.00 


0.10 
10.00 


0.10 
10.00 


Loose fill foil-backed gypsum board, 
interior finish 


Ro 


0.10 
10.00 


0.09 
11.11 


0.09 
11.11 


0.09 
11.11 


1" expanded polystyrene in cavity, 
interior finish 


Ro 


NA 
NA 


0.13 
7.69 


0.12 
8.33 


0.12 
8.33 


2" expanded polystyrene in cavity, 
interior finish 


Ro 


NA 
NA 


0.08 
12.50 


0.08 
12.50 


0.08 
12.50 


\" extruded polystyrene in cavity, 
interior finish 


Ro 


NA 
NA 


0.11 
9.09 


0.11 
9.09 


0.11 
9.09 


2" extruded polystyrene in cavity, 
interior finish 


Ro 


NA 
NA 


0.07 
14.29 


0.07 
14.29 


0.07 
14.29 


1" polyisocyanurate in cavity, 
interior finish 


Ro 


NA 
NA 


0.08 
12.50 


0.08 
12.50 


0.08 
12.50 


2" polyisocyanurate in cavity, 
interior finish 


Ro 


NA 
NA 


0.05 
20.00 


0.05 
20.00 


0.05 
20.00 


1 "expanded polystyrene in cavity foil-backed gypsum board, 
interior finish 


Ro 


NA 
NA 


0.09 
11.11 


0.09 
11.11 


0.09 
11.11 


\" extruded polystyrene in cavity foil-backed gypsum board, 
interior finish 


Ro 


NA 
NA 


0.08 
12.50 


0.08 
12.50 


0.08 
12.50 



For SI: 1 inch = 25.4 mm, 1 pound per cubic foot = 0.1572 kg/m^. 

a. The U^^, values are for blocks made with concrete having a density of 80 pounds per cubic foot; for other densities, the U^^ must be calculated based on the /?- values 
provided in NCMA TEK 6-1 A or the ASHRAE Fundamentals Handbook 2001. 

b. 8" composite wall: 4" dense outer wythe and hollow-unit inner wythe. 

c. 10" cavity wall: 4" dense outer wythe, 2" air space and 4" hollow-unit inner wythe. 

d. 12" cavity wall: 4" dense outer wythe, 2" air space and 6" hollow-unit inner wythe. 

e. 14" cavity wall: 4" dense outer wythe, 2" air space and 8" hollow-unit inner wythe. 

f. Refer to drawings in Tables 502.2.3.1(1) and 502.2.3.1(3). 
NA - Not Applicable. 



2003 INTERMATDOWAL ENERGY CONSERVATION CODE® 



203 



APPENDIX 



TABLE 502.2.3.1(3) 

WALL ASSEMBLIES 

(Uy^ selected shall not exceed the Ug determined by Section 502.2.3.1 for any wall section) 



WALL DETAILS" 



Interior finish V4" gypsum board applied on furring strips 



R-VALUE OF JNSULATION 



BRICK MASONRY CONSTRUCTION WITH LOOSE FILL 



Solid grout in space 



A^ 



2" space with loose fill 
R-4 



LOOSE FILL 



4" space with loose fill 
R-8 



0.38 



0.16 



0.10 



2.63 



6.25 



10.00 



BRICK MASONRY CONSTRUCTION WITH INSULATION 
^i F=n 



@ 



M 



-INTERIOR FINISH 



11 



0.12 



0.09 



0.07 



8.33 



11.11 



14.29 



NORMAL- WEIGHT CONCRETE CONSTRUCTION 



NORMAL WEIGHT 
CONCRETE 



INTERIOR FINISH 



11 



0.18 



0.13 



0.12 



0.08 



5.56 



7.69 



8.33 



12.50 



LIGHTWEIGHT CONCRETE CONSTRUCTION 



LIGHTWEIGHT 
CONCRETE 



INTERIOR FINISH 



INSULATION 



11 



0.17 



0.12 



0.11 



0.08 



8.33 



9.09 



12.50 



INSULATING CONCRETE FORM SYSTEM (ICF)= 



12 



15 



EXTERIOR FINISH 



INSULATION 



CONCRETE 
INTERIOR FINISH 
INSULATION^ 



16 



17 



20 



22 



0.07 



0.06 



0.06 



0.05 



0.05 



0.04 



13.55 



16.55 



17.55 



18.55 



21.55 



23.55 



For SI: 1 inch = 25.4 mm. 

a. The ^-value listed is the sum of the values for the exterior and interior insulation layers. 

b. The manufacturer shall be consulted for the f/^ and Rg values if the insulated concrete form system (ICF) uses metal form ties to connect the interior and exterior 
insulation layers. 

c. These values shall be permitted to be used for concrete masonry wall assemblies with exterior and interior insulation layers. 

d. Details shown are for insulation and are not complete construction details. 



204 



2003 IMTEeNATIONAL ENERGY CONSERVATION CODE® 



APPEf 



TABLE 502.2.3.2 
ROOF/CEBUMG ASSEMBLIES 







{Uf seSected shall not exceed She vaSue specif ted m Section 502.2.3.2) 




ROOF DETAILS'- "■*= 


ff-VALUE OF 
IWSULATSON^ 


W, 


«o 


Typical interior finish — 

1. Gypsum wallboard; or 

2. Lath & plaster 


.^^=fffr...„.'„<:k 


. CEILING JOIST 

i INSULATION 


19 


0.050 


20.00 


22 


0.040 


25.00 




^ 




30 


0.030 


33.33 










-M- 


38 


0.025 


40.00 


AIR SPACE AND — 




-, / BUILT-UP ROOF 

\ / 1 .,^,,, ,- 


19 


0.050 


20.00 


VENTILATION DESIRABLE 




22 


0.040 


25.00 




^^mmmmM 




30 


0.030 


33.33 






y^ / ^ INTERIOR FINISH 






CEILING JOIST OR RAFTERS ^ 


38 


0.025 


40.00 


CATHEDRAL-TYPE CEILING 


Wood decking 






\ ^^ 


9 


0.080 


12.50 






RIGID INSULATION s,,^ .,^^^^^^\J^^^ \ 


Plywood 


\ \ ^ 


WOOD OR PLYWOOD SHEATHING 


10 


0.080 


12.50 


19 


0.050 


20.00 




V 




— BEA 


« 


30 


0.030 


33.33 



a. Details shown are for insulation and are not complete construction details. 

b. Skylights not exceeding one percent of the roof are permitted. 

c. Insulation installed between joints. 



TABLE 502.2.3.3 
FLOOR ASSER^BLBES 
shall not exceed the Uq specified in Section 502.2.3.3) 



FLOOR DETAILS' 



ff-VALUE OF 
INSULATION 



INSULATION 




No insulation 



0.32 



0.11 



11 



0.08 



19 



0.05 



3.13 



9.09 



12.50 



20.00 



a. Details shown are for insulation and are not complete construction details. 



2003 IWTERNATDOiSSAL EESIERGY CONSERVATDOiV! CODI! 



S05 



APPENDIX 



TABLE 502.2.3.5 

CRAWL SPACE FOUNDATJON WALL ASSEMBLIES 

(0-factor seSected shail oot exceed the 0-factor determmed by Secitioo 502.2.3.5) 



WALL DETAILS' 



R-VALUE OF INSULATION 



lAFACTOR 



WOOD FOUNDATION 




11 



13 



19 



0.10 



0.09 



0.06 



CONCRETE/MASONRY FOUNDATION— INTERIOR INSULATION 



^EC 



10 



11 



13 



19 



0.15 



0.08 



0.08 



0.07 



0.05 



CONCRETE/MASONRY FOUNDATION— EXTERIOR INSULATION 




10 



15 



0.20 



0.15 



0.08 



0.06 



INSULATING CONCRETE FORM SYSTEM (ICF)'''^'' 




12 



15 



16 



17 



20 



22 



0.08 



0.06 



0.06 



0.06 



0.05 



0.04 



a. Details shown are for insulation and are not complete construction details. 

b. The /?- value listed is the sum of the values for the exterior and interior insulation layers. 

c. The manufacturer shall be consulted for the {/-factor if the insulated concrete form system (ICF) uses metal form ties to connect the interior and exterior insulation 
Jayers. 

d. These values shall be permitted to be used for concrete masonry wall assemblies with exterior and interior insulation layers. 



206 



2003 IMTERMAT10SV5AL ENERGY CONSERVATSON CODE® 



TABLE 502.2.3, 

BASEMENT FOUMDATlOiS] Wk 

(iMactor selected shall noft eitceed She OTactor 



SSEMBLIES 
determoned bv Section 502.2.3.1 



APPENDIX 



WALL DETAILS^ 



/?-VALUE OF INSULATION 



i;LFACTOR 



WOOD FOUNDATION 






11 



13 



19 



0.08 



0.08 



0.06 



CONCRETE/MASONRY FOUNDATION— INTERIOR INSULATION 



^^^^^^ 



\YxV 



^ 



6.5 



10 



11 



19 



0.15 



0.12 



0.08 



0.08 



0.06 



CONCRETE/MASONRY FOUNDATION— EXTERIOR INSULATION 



wm 



10 



15 



0.20 



0.15 



0.09 



0.06 



INSULATING CONCRETE FORM SYSTEM (ICF)''' '^' " 




12 



15 



16 



17 



20 



22 



0.07 



0.06 



0.06 



0.05 



0.05 



0.04 



a. Details shown are for insulation and are not complete construction details. 

b. The /?-value listed is the sum of the values for the exterior and interior insulation layers. 

c. The manufacturer shall be consulted for the [/-factor if the insulated concrete form system (ICF) uses metal form ties to connect the interior and exterior insulation 
layers. 

d. These values shall be permitted to be used for concrete masonry wall assemblies with exterior and interior insulation layers. 



2003 BNTERNATDONAL ENERGY CONSERVATION CODE® 



207 



APPENDIX REFERENCED STANDARDS 

ASHRAE-2001 ASHRAE Fundamentals Handbook Tables502.2.3.1(l)and502.2.3.1(2) 

NCMATEK6-1A R-ValuesofMulti-Wythe Concrete Masonry Walls Table 502.2.3. 1(2) 



208 2003 BMTERNATIONAL ENERGY CONSERVATION CODE® 



ADDITIONS AMD ALTEIRMIQMS 

Defined 202 

Requirements 101.2.2.2, 502.2.5 

)M AND 

ST „_.._„_____ _ Chapter 1 

ERS ........... = 803.2.6, 803.3.3.5 

m 

Defined 202 

Requirements 402.1.3.10 

AIR LEAKAGE ........... 502.1 .4, 601 .3.2.2, 802.3 

AIR SYSTEM iALANCIWG. ..... 503.3.3.7, 803.3.8.1 

AIR TRANSPORT FACTOR 

Defined 202 

Requirements 503.3.3.6 

ALTERNATE MATERIALS 103 

ANNUAL FUEL UTILIZATION EFFICIENCY 

Defined 202 

APPROVED 

Defined 202 

ITOiyiATIC 

Defined 202 

© 

503.3.3.7, 803.3.8 

,ASTS 805.3 

iSEMENT WALLS 

Defined 202 

Requirements 402.2.3.10, Table 502.2, 

Figure 502.2(6), 502.2.1.6, 502.2.3.6, 
Tables 502.2.4(1-9), 502.2.4.9, Table 602.1, 
602.1.5, 802.1.1.2, Tables 802.2(1-37), 802.2.8 
iL0W=GRADE WALLS (see BASEMENT WALLS) 

=LEVEL SWITCHINO 805.2.2.1 

ILERS ....... Table 503.2, Table 803.2.2(5), 804.2 

iN¥ELOPE 

Compliance documentation 104, 402.5, 806.5 

Defined 202 

Requirements 402, 502, 602, 802 

System performance criteria. . . . 402.2.1, 402.2.3.3, 

806.4 
System performance method 402, 806 



liiATE ZONES .................... Table 302.1 

By state Figures 902.1(1-51) 

Envelope requirements Tables 802.2(1-37) 

IEFF8CIENT OF PERFORMANCE (COP) 

Defined 202 

liiBSNED SERVICE WATER HEATING AND SPACE 
lEATING 504.2.2 



Compliance 101.3.2 

Defined 202 

Design by acceptable practice Chapter 8 

Design by referenced standard Chapter 7 

Design by total building performance 806 



lYSTEMS 503.3.3.7, 803.3.8 

iVlanuals 803.3.8.3 

?)iiPLIANCE AND ENFORCEMENT 101.4 

INDITIONED FLOOR AREA 
Defined 202 



..202 
504.6 



Defined 



CONSERVATION OF WATER 



Capabilities 503.3.2.2, 803.3.3 

Economizers 803.2.6, 803.3.3.5 

Heat pump 803.3.3.1 .1 

Heating and cooling 402.2.3.4, 

Table 402.2.3.4, 803.3.3 

Humidity 503.3.2.4, 803.2.3.3 

Hydronic systems 803.2.4, 803.3.3.7 

Lighting 805.2 

Off hour 803.3.3.3 

Service water heating . . . 504.3, 504.4, 804.2, 804.6 

Shutoff dampers 803.2.7, 803.3.4 

Temperature 503.3.2.1, 803.2.3.1 

Variable air volume systems .... 803.3.3.6, 803.3.4 

Ventilation 803.2.5, 803.3.5 

OLING WITG^l OUTDOOR AIR . . 803.2.6, 803.3.3.5 
AWL SPACE WALLS 

Defined 202 

Requirements 502.1.5, 502.2, Table 502.2, 

Figure 502.2(5), 502.2.3.5, 

Tables 502.2.4(1-9), 502.2.4.12, 

Table 602.1, 602.1.7 



G AND WEATHERSTRIPPING . . . 502.1.4.2, 

602.1.10,802.3.2 

ULATING PUMPS 504.4, 804.6 

ULATING SYSTEMS 504.3, 504.4, 

504.7, 804.4 
ATE DATA 302 



lADBAND 202, 503.3.2.2, 803.3.3.2 

IFINITIONS Chapter 2 

IGREE DAY COOLING 

Defined 202 

EGREE DAY SEATING 

Defined 202 



2003 INTEIRNATDOWAL ENERGY CONSERVATBON CODE® 



SNDEX 



DESIGN CONDITfONS Chapter 3 

DETAILS Appendix 

)UAL DUCT VAV 803.3.4.2 

)UCTS 

Defined 202 

Insulation 503.3.3.3, 803.2.8 

Sealing 503.3.3.4, 803.2.8, 803.3.6, 805.1, 

DWELLING UNIT 

Defined 202 



ECONOMIZER 

Air 803.2.6, 803.3.3.5 

Defined 202 

Requirements 803.2.6, 803.3.4.3, 803.3.3.5 

Water 803.3.3.5 

ELECTRICAL POWER AND LIGHTING 505, 805 

ENERGY ANALYSIS, ANNUAL ' 

Defined 202 

Documentation 402.6, 806.5 

Requirements 402.1 , 806 

ENERGY EFFICIENCY RATIO (EER) 

Defined 202 

ENVELOPE, BUILDING 

Defined 202 

ENVELOPE DESIGN 

PROCEDURES 502.2.1, 502.2.2, 

502.2.3, 502.2.4, 602, 802 
EQUIPMENT EFFICIENCIES 503.2, 504.2, 603, 803.2, 
803.3.2, 804.2, 806.3.1, 806.4.1 
EQUIPMENT PERFORllANCE REQUIREIViENTS 

Boilers Table 803.2.2(5) 

Chillers, nonstandard Tables 803.3.2(1-2) 

Condensing units Table 803.3.2(1) 

Economizer exception Table 803.2.6 

General, residential Table 503.2 

Heat rejection equipment Table 803.3.2(6) 

Packaged terminal air conditioners 

and heat pump Table 803.2.2(3) 

Unitary air conditioners and 

condensing units Table 803.2.2(1) 

Unitary and applied heat pumps. . . Table 803.2.2(2) 
Warm air duct furnaces and 

unit heaters Table 803.2.2(4) 

Warm air furnaces Table 803.2.2(4) 

Warm air furnaces/air-conditioning 

units Table 803.2.2(4) 

Water chilling packages, 

standard Table 803.3.2(2) 

Water heating 504.2, Table 504.2.1, 804.2 

IINGS 101.2.1 

INGS 101.2.2 

ING 805.5 

ING 402.1.3.1.3,802.2.3 



Defined 202 

Thermal performance 402.2.1.1, 502, 802 

F 
;nestration 102.5, 402.2.1.2, 601.3.2 

Defined 202 

Rating and labeling 102.5, 601.3.2 

IRNACE EFFICIENCY Table 503.2, 

Table 803.2.2(4) 
Defined 202 



805.2.2.1 



Defined 202 

Requirements 402.2.1.3, 502.2, 502.2.1, 

502.2.2, 502.2.3, 502.2.4, 502.2.5 



Defined 202 

Requirements 502.2.1 .1 .2, 

Tables 502.2.1.1.2(1-3), 502.2.4.17, 
Tables 502.2.4.17(1-2) 

lEAT PUiiP Table 503.2, Tables 803.2.2(2-3) 

Defined 202 

lEAT TRAPS 504.7, 804.4 

Defined 202 

EATING AND COOLING CRITERIA Table 502.2 

iEATING AND COOLING 

LOADS 402.4.1, 402.5.6, 503.3.1, 

803.2.1,803.3.1 

aOT WATER 504.4, 804.2 

Annual energy performance 402.2.3.6, 402.4 

Piping insulation 504.5, 804.5 

System controls 504.3, 504.4, 804.2, 804.6 



Defined 202 

Requirements 503.3.2.4, 803.2.3.2, 803.3.3.1 

DING 803.3.8.2 



])EWTIFDCATION (liATERIALS, EQUSPliENT 
AND SYSTEDVi) 102." 



402.2.3.9,502.1.4,802.3 

202 

105 



BNFILTRATION, AIR 



Defined 

IPEC 



210 



2003 DNTERMATIONAL ENERGY CONSERVATION CODE® 



BNDE5S 



Identification 102.5 

Installation 102.4, 601.3.1 

ONSULMIMQ SyEMHIMG 

Defined 202 

Requirements 502.2.4.1, 502.2.4.16 

DMTEGRMED PhWf LOAD VALUE 

Defined 202 

DNTEBiOR LIGyTWQ POWER 805.5 

L 

LABELED 

Defined 202 

Requirements 102.3, 102.5.2, 601.3.2, 601.3.3 

LIGHTIMG POWER 

Design procedures 805.5.2 

Exterior connected 805.6, 806.2.8 

Interior connected . . . 805.5, Table 805.5.2, 806.4.7 
Manufacturer's information 102.3, 601.3.3 

LiGHTlWO SYSTEiySS 505, 605, 805 

Controls, additional 805.2.2 

Controls, exterior 805.2.3 

Controls, interior 805.2.1 

Decorative Table 805.5.2 

For visual display terminals Table 805.5.2 

Guestrooms 805.2.2.3 

Line voltage 805.5.1 .4 

iVierchandise Table 805.5.2 

Plug-in busway 805.5.1 .4 

Track 805.5.1.4 

LISTED 

Defined 202 

LOW^VOLTAGE LiGnTDWG 

Defined 202 

Requirements 805.4.1 .2 

LUMINADRE 

Defined 202 

m 

fiySANUALS 803.3.8.3 

IVflATERIALS AMD EQUIFDiEWT 102, 601.3 

HECHAMDCAL SYSTEMS AMD 

EQUDFUENT 503, 603.3, 803 

CVflECHAMDCAL VEMTDLATDOW 503.3.3.5, 803.5 

Defined 202 

MOiSTORE CONTROL 502.1.1, 802.1.2 

HULTiFAHiLY DWELLBMG 

Defined 202 

MULTIPLE SINGLE=FAMILY DWELLING 
(TOWMyOOSE) 

Defined 202 

DiULTIPLE ZONE SYSTEMS 803.3.4 



804.4 



iONDEPLETABLE/RENEWABLI 



Defined 202 

Requirements 806.2.4 



Defined 202 

Requirements 101.2.2.4, 101.2.3 

OCCUPAWCY SENSORS 805.2.1.1 

OFF=HOUR, COWTR0LS 803.3.3.3 



Defined 202 

ORIENTATION 402.2.2.1, 402.2.3.1.1, 402.5.3 

0¥ERHAMG, PROJECTION FACTOR 802.2.3 

OZONE DEPLETION FACTOR 

Defined 202 

P 

PACKAGED TERMINAL AIR CONDITIONER (FTAC) 

Defined 202 

Requirements Table 803.2.2(3) 

PACKAGED TERMINAL HEAT PUMP 

Defined 202 

Requirements Table 803.2.2(3) 

PARALLEL PATI=a CORRECTION 

FACTORS 502.1 .1 .1 , Table 502.2.1 .1 .1 

CELL 805.2.2 

ULATION 503.3.3.1, 503.3.3.2, 

504.5, 803.2.9, 803.3.7, 804.5 
PLANS AND SPECflFICATIONS104 

POOL COVERS 504.3.2 

PROJECTION FACTOR 802.2.3 

PROPOSED DESIGN 

Defined 202 

Requirements 402, 502.2.2, 806 

PUMPING SYSTEMS 504.3, 504.4, 

803.3.3.7.1,803.3.8.2 



e=VALUE (sea THERMAL RESISTANCE) 

RECOOLING 803.3.4 

REFERENCED STANDARDS 107, Chapter 10 

REHEATING 803.3.4 

RENEWAiLE/NONDEPLETABLE ENERGY 

SOURCES 806.2.4 

Defined 202 



2003 INTERNATDONAL EMERGY COWSERVATDOW CODE® 



2111 



INDEX 



REPAIR 

Requirements 101.2.2.2 

Defined 202 

RESET CONTROL 803.3.3.7.4 

RESIDENTIAL BUILDINGS 

Compliance 101.4.1 

Defined 202 

Design by component performance Ciiapter 5 

Design by system analysis and 

renewable sources Chapter 4 

Design using simplified prescriptive 

requirements Chapter 6 

ROOF ASSEMBLY 

Defined 202 

Requirements Figure 502.2(2), 502.2.1.2, 

502.2.3.2, Tables 502.2.4(1-9), 
502.2.4.7, Table 602.1, 602.1.2 



SCOPE 101.2 

SCREW LAMP HOLDERS 

Defined 202 

Requirements 805.5.1 .1 

SEASONAL ENERGY EFFICIENCY RATIO 

Defined 202 

SERVICE WATER HEATING 

Defined 202 

Requirements 504, 604, 804, 806.2.8, 806.3.1 

SHADING ...... 402.2.3.1.2, 402.2.3.1.3, 402.2.3.1.4 

Projection factor 802.2.3 

SHOWER HEADS 504.6.1 

SHUTOFF DAMPERS 503.3.3.5, 803.3.3.4 

SIMULATION TOOL 

Defined 202 

Requirements 402.4.7, 806.2.1 

SINGLE ZONE 503.1, 803.2 

SIZING 

Equipment and system 803.2.1, 803.3.1.1 

SKYLIGHTS 402.2.1.4, 502.2.1.22.1, 

602.4, 502.2.5 

Defined 202 

Maximum exempt area 502.2.4.4, 802.2.5 

SLAB-EDGE INSULATION 102.4.1, 

Figure 502.2(3), 502.2.1.4, 502.2.3.4, 

Tables 502.2.4(1-9), 502.2.4.10, 502.2.4.11, 

Table 602.1, 602.1.6, Tables 802.2(1-37), 802.2.7 

SOLAR HEAT GAIN COEFFICIENT (SHGC). . . 102.5.2 
STANDARD DESIGN 

Defined 202 

STANDARDS, REFERENCED 107, Chapter 10 

STEEL FRAMING 502.2.1.1.1, 502.2.1.2, 

502.2.1.3, 502.2.3.1, 502.2.3.2, 502.2.3.3, 

502.2.4.16, Tables 502.2.4.16(1-2), 502.2.4.18, 

Tables 502.2.4.18(1-2), 502.2.4.19, Table 502.2.4.19 



STANDARD TRUSS 502.2.4.5, 602.1.2 

Defined 202 

SONROOM ADDITION 502.2.2.5 

Defined 202 

SWIMMING POOLS 504.3 

SYSTEMS ANALYSIS 402, 806 

T 

TANDEM WIRING 805.3 

TERMITE 

INFESTATION Table 502.2, Figure 502.2(7) 

THERMAL ISOLATION ....... 502.2.5, Table 502.2.5 

Defined 202 

THERMAL 

MASS 502.2.1.1.2, Tables 502.2.1.1.2(1-3), 

502.2.4.17, Tables 502.2.4.17(1-2) 
THERMAL RESISTANCE (R) 

Defined 202 

THERMAL TRANSMIITANCE (U) 

Defined 202 

TOTAL BUILDING PERFORMANCE 

Commercial 806 

Residential 402 

TOWNHOUSE (see MULTIPLE SINGLE-FAMILY 

DWELLING) 
TYPE A=1 AND A-2 RESIDENTIAL BUILDINGS 
(see RESIDENTIAL BUILDINGS) 



U 
I/-FACTOR (see THERMAL TRANSMITTANCE) 

V 

VAPOR RETARDER 502.1.1, 802.1.2 

VARIABLE AIR VOLUME 

SYSTEMS (VAV) 803.3.3.6, 803.3.4 

VENTIlLATiOM 503.3.3.5, 803.2.5, 803.3.5 

Defined 202 



W 

WALLS (see EXTERIOR WALLS AND ENVELOPE, 
BUILDING) 

WALLS ADJACENT TO UNCONDITIONED 
SPACE 802.1.1.3, Tables 802.2(1-37), 802.2.9 

WATER CONSERVATION 504.6 

WATER ECONOMIZER 803.3.3.5 

WATER HEATING .... 504, 604, 804, 806.2.8, 806.3.1 

WINDOW AREA (see GLAZING AREA) 

WINDOW PROJECTION FACTOR 

Defined 202 

Requirements 802.2.3 

WINDOW=TO=WALL RATIO 
(see GLAZING AREA) 



212 



2003 BNTERMATSONAL ENERGY CONSERVATION CODE® 



MDEn 



WmmQ, MMDEM 805.3 



ZONE 

Defined 202 

Requirements Table 402.2.3.4, 503.3.2.1, 

803.3.3, 803.3.4 

ZONE ISOLATION 803.3.4 



2003 BMTERMATBON-AL ENERGY COI^SERVATION CODE® 21 3 



21 4 2003 DIMTERNATDOfMAL ENERGY C0NSERVAT80N CODE® 



EDITORIAL CHANGES - TMIMD FEINTING 

Page 16, 402.4.1: Last line now reads . . . of effect of factors specified in Section 402.5. 

Page 17, 502.1.3: Item 3, line 5 now reads . . . tested at 1.57 pounds per square foot (psf) (75 Pa) 

Page 18, Table 502.2: Columns 3 and 4 now read . . . DETACHED ONE- AND TWO-FAMILY DWELLINGS and 
GROUP R-2, R-4 OR TOWNHOUSES respectively. 

Page 47, Table 602.1.1.1(1): Column 2, Zone 15 now reads . . . 7,000 - 8,499 

Page 58, 802.3.2: Line 5 now reads . . . square foot (psf) (75 Pa) 

Page 59, 802.3.7: Item 3, line 5 now reads ... be tested at 1.57 psf (75 Pa) 



2003 JNTERWMDOMAL ENERGY CONSEK¥M0©N CODE® 21 5 



216 2003 DMTERMATB0MAL ENERGY CONSERVATBON CODE® 



ERRATA TO THE 
2003 INTERNATIONAL ENERGY CONSERVATION CODE 

Errata to the Second Printing, April 2003 
(Updated November 3, 2003) 



402.4.1 : Last line now reads ... of effect of factors specified in Section 402.5. 

502.1.3: Item 3, line 5 now reads . . . tested at 1 .57 pounds per square foot (psf) (75 Pa) 

Table 502.2: Columns 3 and 4 now read . . . DETACHED ONE- AND TWO-FAMILY DWELLINGS 
and GROUP R-2, R-4 OR TOWNHOUSES respectively. 

Table 602.1.1.1(1): Column 2, Zone 15 now reads . . . 7,000 - 8,499 

802.3.2: Line 5 now reads . . . square foot (psf) (75 Pa) 

802.3.7: Item 3, line 5 now reads ... be tested at 1 .57 psf (75 Pa)