1、 2 0 1 8INTERNATIONAL CODESGet a free 45-day online subscription to ICCs premiumACCESS2018 I-Codes Complete Collection. Test drive many powerful, time-saving tools available to you from premiumACCESS. To activate your bonus, visit www.iccsafe.org/codebonus.2018 I-CODE BONUS OFFERINTERNATIONALENERGY
2、CONSERVATION CODEIECCA Member of the International Code Family2018 International Energy Conservation CodeFirst Printing: August 2017ISBN: 978-1-60983-749-5 (soft-cover edition)COPYRIGHT 2017byINTERNATIONAL CODE COUNCIL, INC.Date of First Publication: August 31, 2017ALL RIGHTS RESERVED. This 2018 Int
3、ernational Energy Conservation Codeis a copyrighted work owned by the Interna-tional Code Council, Inc. Without advance written permission from the copyright owner, no part of this book may be repro-duced, distributed or transmitted in any form or by any means, including, without limitation, electro
4、nic, optical or mechanicalmeans (by way of example, and not limitation, photocopying or recording by or in an information storage retrieval system). Forinformation on use rights and permissions, please contact: Publications, 4051 Flossmoor Road, Country Club Hills, IL 60478.Phone 1-888-ICC-SAFE (422
5、-7233). Trademarks: “International Code Council,” the “International Code Council” logo, “ICC,” the “ICC” logo, “InternationalEnergy Conservation Code,” “IECC” and other names and trademarks appearing in this book are trademarks of the InternationalCode Council, Inc., and/or its licensors (as applic
6、able), and may not be used without permission.PRINTED IN THE U.S.A.2018 INTERNATIONAL ENERGY CONSERVATION CODEiiiPREFACEIntroductionThe International Energy Conservation Code(IECC) establishes minimum requirements forenergy-efficient buildings using prescriptive and performance-related provisions. I
7、t is founded onbroad-based principles that make possible the use of new materials and new energy-efficientdesigns. This 2018 edition is fully compatible with all of the International Codes(I-Codes) pub-lished by the International Code Council(ICC), including the International Building Code, Interna-
8、tional Existing Building Code, International Fire Code, International Fuel Gas Code, InternationalGreen Construction Code, International Mechanical Code, International Plumbing Code, Interna-tional Private Sewage Disposal Code, International Property Maintenance Code, International Res-idential Code
9、, International Swimming Pool and Spa Code, International Wildland-Urban InterfaceCode, International Zoning Codeand International Code Council Performance Code.This code contains separate provisions for commercial buildings and for low-rise residentialbuildings (3 stories or less in height above gr
10、ade). Each set of provisions, IECCCommercial Provi-sions and IECCResidential Provisions, is separately applied to buildings within its respective scope.Each set of provisions is to be treated separately. Each contains a Scope and Administration chapter,a Definitions chapter, a General Requirements c
11、hapter, a chapter containing energy efficiencyrequirements and existing building provisions applicable to buildings within its scope.The I-Codes, including this International Energy Conservation Code, are used in a variety of waysin both the public and private sectors. Most industry professionals ar
12、e familiar with the I-Codes asthe basis of laws and regulations in communities across the U.S. and in other countries. However,the impact of the codes extends well beyond the regulatory arena, as they are used in a variety ofnonregulatory settings, including: Voluntary compliance programs such as th
13、ose promoting sustainability, energy efficiencyand disaster resistance. The insurance industry, to estimate and manage risk, and as a tool in underwriting and ratedecisions. Certification and credentialing of individuals involved in the fields of building design, con-struction and safety. Certificat
14、ion of building and construction-related products. U.S. federal agencies, to guide construction in an array of government-owned properties. Facilities management. “Best practices” benchmarks for designers and builders, including those who are engaged inprojects in jurisdictions that do not have a fo
15、rmal regulatory system or a governmentalenforcement mechanism. College, university and professional school textbooks and curricula. Reference works related to building design and construction.In addition to the codes themselves, the code development process brings together building pro-fessionals on
16、 a regular basis. It provides an international forum for discussion and deliberationabout building design, construction methods, safety, performance requirements, technologicaladvances and innovative products.DevelopmentThis 2018 edition presents the code as originally issued, with changes reflected
17、 in the 2000 through2015 editions and further changes approved through the ICC Code Development Process through2017. A new edition such as this is promulgated every 3 years.iv 2018 INTERNATIONAL ENERGY CONSERVATION CODEThis code is founded on principles intended to establish provisions consistent wi
18、th the scope ofan energy conservation code that adequately conserves energy; provisions that do not unnecessar-ily increase construction costs; provisions that do not restrict the use of new materials, products ormethods of construction; and provisions that do not give preferential treatment to part
19、icular typesor classes of materials, products or methods of construction.MaintenanceThe International Energy Conservation Code is kept up to date through the review of proposedchanges submitted by code enforcement officials, industry representatives, design professionalsand other interested parties.
20、 Proposed changes are carefully considered through an open codedevelopment process in which all interested and affected parties may participate.The ICC Code Development Process reflects principles of openness, transparency, balance, dueprocess and consensus, the principles embodied in OMB Circular A
21、-119, which governs the federalgovernments use of private-sector standards. The ICC process is open to anyone; there is no cost toparticipate, and people can participate without travel cost through the ICCs cloud-based app, cdp-Access. A broad cross section of interests are represented in the ICC Co
22、de Development Process.The codes, which are updated regularly, include safeguards that allow for emergency action whenrequired for health and safety reasons.In order to ensure that organizations with a direct and material interest in the codes have a voicein the process, the ICC has developed partne
23、rships with key industry segments that support theICCs important public safety mission. Some code development committee members were nomi-nated by the following industry partners and approved by the ICC Board: National Association of Home Builders (NAHB) National Multifamily Housing Council (NMHC)Th
24、e code development committees evaluate and make recommendations regarding proposedchanges to the codes. Their recommendations are then subject to public comment and council-widevotes. The ICCs governmental memberspublic safety officials who have no financial or businessinterest in the outcomecast th
25、e final votes on proposed changes.The contents of this work are subject to change through the code development cycles and by anygovernmental entity that enacts the code into law. For more information regarding the code devel-opment process, contact the Codes and Standards Development Department of t
26、he InternationalCode Council. While the I-Code development procedure is thorough and comprehensive, the ICC, its membersand those participating in the development of the codes disclaim any liability resulting from thepublication or use of the I-Codes, or from compliance or noncompliance with their p
27、rovisions. TheICC does not have the power or authority to police or enforce compliance with the contents of thiscode.Code Development Committee Responsibilities(Letter Designations in Front of Section Numbers)In each code development cycle, proposed changes to the code are considered at the Committe
28、eAction Hearings by the applicable International Code Development Committee. The IECCCommer-cial Provisions (sections designated with a “C” prior to the section number) are primarily maintainedby the Commercial Energy Code Development Committee. The IECCResidential Provisions (sec-tions designated w
29、ith an “R” prior to the section number) are maintained by the Residential EnergyCode Development Committee. This is designated in the chapter headings by a CE and RE,respectively.Maintenance responsibilities for the IECC are designated as follows:CE = International Commercial Energy Conservation Cod
30、e Development CommitteeRE = International Residential Energy Conservation Code Development Committee2018 INTERNATIONAL ENERGY CONSERVATION CODEvFor the development of the 2021 edition of the I-Codes, there will be two groups of code devel-opment committees and they will meet in separate years.Margin
31、al MarkingsSolid vertical lines in the margins within the body of the code indicate a technical change from therequirements of the 2015 edition. Deletion indicators in the form of an arrow ( ) are provided inthe margin where an entire section, paragraph, exception or table has been deleted or an ite
32、m in alist of items or a table has been deleted.Coordination of the International CodesThe coordination of technical provisions is one of the strengths of the ICC family of model codes.The codes can be used as a complete set of complementary documents, which will provide userswith full integration a
33、nd coordination of technical provisions. Individual codes can also be used insubsets or as stand-alone documents. To make sure that each individual code is as complete as pos-sible, some technical provisions that are relevant to more than one subject area are duplicated insome of the model codes. Th
34、is allows users maximum flexibility in their application of the I-Codes.a172Group A Codes(Heard in 2018, Code Change ProposalsDeadline: January 8, 2018)Group B Codes(Heard in 2019, Code Change ProposalsDeadline: January 7, 2019)International Building Code Egress (Chapters 10, 11, Appendix E) Fire Sa
35、fety (Chapters 7, 8, 9, 14, 26) General (Chapters 26, 12, 2733,Appendices A, B, C, D, K, N)Administrative Provisions (Chapter 1 of allcodes except IECC, IRC and IgCC, administra-tive updates to currently referenced stan-dards, and designated definitions)International Fire Code International Building
36、 Code Structural (Chapters 1525, Appendices F,G, H, I, J, L, M)International Fuel Gas Code International Existing Building CodeInternational Mechanical Code International Energy Conservation CodeCommercialInternational Plumbing Code International Energy Conservation CodeResidential IECCResidential I
37、RCEnergy (Chapter 11)International Property Maintenance Code International Green Construction Code(Chapter 1)International Private Sewage Disposal Code International Residential Code IRCBuilding (Chapters 110,Appendices E, F, H, J, K, L, M, O, Q, R, S, T)International Residential Code IRCMechanical
38、(Chapters 1223) IRCPlumbing (Chapters 2533, Appendices G, I, N, P)International Swimming Pool and Spa CodeInternational Wildland-Urban Interface CodeInternational Zoning CodeNote: Proposed changes to the ICC Performance Code will be heard by the code development committee noted in brack-ets in the t
39、ext of the ICC Performance Code.vi 2018 INTERNATIONAL ENERGY CONSERVATION CODEItalicized Terms Selected words and terms defined in Chapter 2, Definitions, are italicized where they appear in codetext and the Chapter 2 definition applies. Where such words and terms are not italicized, common-use defi
40、nitions apply. The words and terms selected have code-specific definitions that the usershould read carefully to facilitate better understanding of the code.AdoptionThe International Code Council maintains a copyright in all of its codes and standards. Maintainingcopyright allows the ICC to fund its
41、 mission through sales of books, in both print and electronic for-mats. The ICC welcomes adoption of its codes by jurisdictions that recognize and acknowledge theICCs copyright in the code, and further acknowledge the substantial shared value of the public/pri-vate partnership for code development b
42、etween jurisdictions and the ICC.The ICC also recognizes the need for jurisdictions to make laws available to the public. AllI-Codes and I-Standards, along with the laws of many jurisdictions, are available for free in anondownloadable form on the ICCs website. Jurisdictions should contact the ICC a
43、t adop-tionsiccsafe.org to learn how to adopt and distribute laws based on the International EnergyConservation Code in a manner that provides necessary access, while maintaining the ICCscopyright.To facilitate adoption, two sections of this code contain blanks for fill-in information thatneeds to b
44、e supplied by the adopting jurisdiction as part of the adoption legislation. For thiscode, please see:Sections C101.1 and R101.1. Insert: NAME OF JURISDICTION. 2018 INTERNATIONAL ENERGY CONSERVATION CODEviiEFFECTIVE USE OF THEINTERNATIONAL ENERGY CONSERVATION CODEThe International Energy Conservatio
45、n Code (IECC) is a model code that regulates minimum energyconservation requirements for new buildings. The IECC addresses energy conservation require-ments for all aspects of energy uses in both commercial and residential construction, includingheating and ventilating, lighting, water heating, and
46、power usage for appliances and building sys-tems. The IECC is a design document. For example, before one constructs a building, the designer mustdetermine the minimum insulation R-values and fenestration U-factors for the building exteriorenvelope. Depending on whether the building is for residentia
47、l use or for commercial use, the IECCsets forth minimum requirements for exterior envelope insulation, window and door U-factors andSHGC ratings, duct insulation, lighting and power efficiency, and water distribution insulation.Arrangement and Format of the 2018 IECCThe IECC contains two separate se
48、ts of provisionsone for commercial buildings and one for resi-dential buildings. Each set of provisions is applied separately to buildings within their scope. TheIECCCommercial Provisions apply to all buildings except for residential buildings three stories orless in height. The IECCResidential Prov
49、isions apply to detached one- and two-family dwellingsand multiple single-family dwellings as well as Group R-2, R-3 and R-4 buildings three stories or lessin height. These scopes are based on the definitions of “Commercial building” and “Residentialbuilding,” respectively, in Chapter 2 of each set of provisions. Note that the IECCCommercial Pro-visions therefore contain provisions for residential buildings four st
