ICC I-CODE IECC COMM-2015 I-Codes with Commentaries IECC C International Energy Conservation Code with Commentary (Second Printing March 2016).pdf

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1、 2015CODE AND COMMENTARYThe complete IECC with commentary after each sectionIECC2015 International Energy Conservation Code andCommentaryFirst Printing: October 2015Second Printing: March 2016ISBN: 978-1-60983-287-2 (soft-cover edition)COPYRIGHT 2015byINTERNATIONAL CODE COUNCIL, INC.With the coopera

2、tion of:Jack BaileyJim EdelsonSteve FergusonMark HeizerAmanda HickmanDuane JonlinEric MakalaALL RIGHTS RESERVED. This 2015 International Energy Conservation Codeand Commentary is a copyrighted workowned by the International Code Council, Inc. Without advance written permission from the copyright own

3、er, no part of thisbook may be reproduced, distributed or transmitted in any form or by any means, including, without limitation, electronic, opti-cal or mechanical means (by way of example, and not limitation, photocopying, or recording by or in an information storageretrieval system). For informat

4、ion on permission to copy material exceeding fair use, please contact: Publications, 4051 Floss-moor Road, Country Club Hills, IL 60478. Phone 1-888-ICC-SAFE (422-7233).Trademarks: “International Code Council,” the “International Code Council” logo and the “International Energy ConservationCode” are

5、 trademarks of the International Code Council, Inc. T018723 PRINTED IN THE U.S.A.2015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARY iiiPREFACEThe principal purpose of the Commentary is to provide a basic volume of knowledge and facts relating to building constructionas it pertains to the regulati

6、ons set forth in the 2015 International Energy Conservation Code. The person who is serious abouteffectively designing, constructing and regulating buildings and structures will find the Commentary to be a reliable data sourceand reference to almost all components of the built environment.As a follo

7、w-up to the International Energy Conservation Code, we offer a companion document, the International EnergyConservation Code Commentary. The basic appeal of the Commentary is thus: it provides in a small package and at reasonablecost thorough coverage of many issues likely to be dealt with when usin

8、g the International Energy Conservation Codeandthen supplements that coverage with historical and technical background. Reference lists, information sources andbibliographies are also included.Throughout all of this, strenuous effort has been made to keep the vast quantity of material accessible and

9、 its method of pre-sentation useful. With a comprehensive yet concise summary of each section, the Commentary provides a convenient referencefor regulations applicable to the construction of buildings and structures. In the chapters that follow, discussions focus on the fullmeaning and implications

10、of the code text. Guidelines suggest the most effective method of application and the consequences ofnot adhering to the code text. Illustrations are provided to aid understanding; they do not necessarily illustrate the only methodsof achieving code compliance.The format of the Commentary includes t

11、he full text of each section, table and figure in the code, followed immediately by thecommentary applicable to that text. At the time of printing, the Commentary reflects the most up-to-date text of the 2015 Inter-national Energy Conservation Code. Each sections narrative includes a statement of it

12、s objective and intent and usually includesa discussion about why the requirement commands the conditions set forth. Code text and commentary text are easily distin-guished from each other. All code text is shown as it appears in the International Energy Conservation Code, and all commen-tary is ind

13、ented below the code text and begins with the symbol .Readers should note that the Commentary is to be used in conjunction with the International Energy Conservation Code andnot as a substitute for the code. The Commentary is advisory only; the code official alone possesses the authority andresponsi

14、bility for interpreting the code.Comments and recommendations are encouraged, for through your input, we can improve future editions. Please direct yourcomments to the Codes and Standards Development Department at the Central Regional Office.iv 2015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARY 2

15、015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARY vTABLE OF CONTENTSIECCCOMMERCIAL PROVISIONSCHAPTER 1 SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-1 C1-10CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . .

16、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C2-1 C2-18CHAPTER 3 GENERAL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C3-1 C3-26CHAPTER 4 COMMERCIAL ENERGY EFFICIENCY. . . . . . . . . . . . .

17、 . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-1 C4-138CHAPTER 5 EXISTING BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-1 C5-6CHAPTER 6 REFERENCED STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . .

18、 . . . . . . . . . . . . . . . . . . . . . . . . . C6-1 C6-10INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX C-1 INDEX C-10IECCRESIDENTIAL PROVISIONSCHAPTER 1 SCOPE AND ADMINISTRATION . . . . . . . . . .

19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R1-1 R1-12CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R2-1 R2-14CHAPTER 3 GENERAL REQUIREMENTS. . . . . . . . . . . . .

20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R3-1 R3-26CHAPTER 4 RESIDENTIAL ENERGY EFFICIENCY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R4-1 R4-46CHAPTER 5 EXISTING BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . .

21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R5-1 R5-8CHAPTER 6 REFERENCED STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R6-1 R6-6APPENDIX RA RECOMMENDED PROCEDURE FOR WORST-CASE TESTING OF ATMOSPHERIC VENTING SYSTE

22、MS UNDER R402.4 OR R405 CONDITIONS 5ACH50. . . . . . . . . .APPENDIX RA-1 APPENDIX RA-4APPENDIX RB SOLAR-READY PROVISIONSDETACHED ONE- AND TWO-FAMILY DWELLINGS, MULTIPLE SINGLE-FAMILY DWELLINGS (TOWNHOUSES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .APPENDIX RB-1 APPE

23、NDIX RB-2INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX R-1 INDEX R-6vi 2015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARY 2015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARY viiIECCCOMMERCIAL PRO

24、VISIONSTABLE OF CONTENTSCHAPTER 1 SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-1PART 1SCOPE AND APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25、. . . . . . . . . . . . C1-1Section C101 Scope and General Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-1C102 Alternate MaterialsMethod of Construction, Design or Insulating Systems . . . . . . . .

26、. . . . . . . . . . . . . . . . . . . . . . . C1-3PART 2ADMINISTRATION AND ENFORCEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-4C103 Construction Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-4C104 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-6C105 Validity. . . . . . . . . . . . . . . . . .

28、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-8C106 Referenced Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29、. . . . . . . . C1-8C107 Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-9C108 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-9C109 Board of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C1-10CHAPTER 2 DEFINITIONS . . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C2-1Section C201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32、 . . . . . . . . . . . . . . . . C2-1C202 General Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C2-1CHAPTER 3 GENERAL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . .

33、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C3-1Section C301 Climate Zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C3-2C302 Design Conditions . . . . . . . . .

34、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C3-20C303 Materials, Systems and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35、. . C3-20CHAPTER 4 COMMERCIAL ENERGY EFFICIENCY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-1Section C401 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36、 . . . . . . . . . . . . . . . . . . . C4-2C402 Building Envelope Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-3C403 Building Mechanical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . .

37、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-29C404 Service Water Heating (Mandatory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-85C405 Electrical Power and Lighting Systems . .

38、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-94C406 Additional Efficiency Package Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-118C407 Total B

39、uilding Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C4-123C408 System Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40、 . . . . . . . . . . . . . . C4-133viii 2015 INTERNATIONAL ENERGY CONSERVATION CODECOMMENTARYTABLE OF CONTENTSCHAPTER 5 EXISTING BUILDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-1SectionC501 General. . . . . .

41、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-1C502 Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42、 . . . . . . . . . . . . . . . . . . . . . . . C5-2C503 Alterations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-4C504 Repairs . . . . . . . . . . . . . . . . . . . . . . . . .

43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-6C505 Change of Occupancy or Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C5-6

44、CHAPTER 6 REFERENCED STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C6-1INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45、 . . . . . . . . . . . . . INDEX C-12015 INTERNATIONAL ENERGY CONSERVATION CODE COMMENTARY C1-1PART 1SCOPE AND APPLICATIONSECTION C101SCOPE AND GENERAL REQUIREMENTSC101.1 Title. This code shall be known as the InternationalEnergy Conservation Code of NAME OF JURISDICTION, andshall be cited as such.

46、It is referred to herein as “this code.”This section directs the adopting jurisdiction to insertthe name of the jurisdiction into the code. Becausethe IECC is a “model” code, it is not an enforceabledocument until it is adopted by a jurisdiction oragency that has enforcement powers.C101.2 Scope. Thi

47、s code applies to commercial buildingsand the buildings sites and associated systems and equip-ment.This portion of the code applies to commercial build-ings, commercial building sites and associated sys-tems and equipment. The definitions for “Residentialbuilding,” “Commercial building,” and “Build

48、ing site”will be important in correctly applying the provisionsof the code. See the commentary related to the defi-nitions in Chapter 2 CE. Additional discussion canbe found in the commentary to Chapter 4 CE.C101.3 Intent. This code shall regulate the design and con-struction of buildings for the effective use and conservationof energy over the useful life of each building. This code isintended to provide flexibility to permit the use of innovativeapproaches and techniques to achieve this objective. Thiscode is not intended to abridge safety, health or environmen-tal requirements contained