Transcription
2015 IBC INTERNATIONALBuilding Code CODE ALERT!Sign up now to receive critical code updates and free access to videos,book excerpts and training resources.Signup is easy, subscribe now! www.iccsafe.org/alerts
2015 International Building Code First Printing: May 2014ISBN: 978-1-60983-468-5 (soft-cover edition)ISBN: 978-1-60983-497-8 (loose-leaf edition)COPYRIGHT 2014byINTERNATIONAL CODE COUNCIL, INC.Date of First Publication: May 30, 2014ALL RIGHTS RESERVED. This 2015 International Building Code is a copyrighted work owned by the International CodeCouncil, Inc. Without advance written permission from the copyright owner, no part of this book may be reproduced, distributedor transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way ofexample, and not limitation, photocopying, or recording by or in an information storage retrieval system). For information onpermission to copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL60478. Phone 1-888-ICC-SAFE (422-7233).Trademarks: “International Code Council,” the “International Code Council” logo and the “International Building Code” aretrademarks of the International Code Council, Inc.PRINTED IN THE U.S.A.
PREFACEIntroductionInternationally, code officials recognize the need for a modern, up-to-date building code addressingthe design and installation of building systems through requirements emphasizing performance.The International Building Code , in this 2015 edition, is designed to meet these needs throughmodel code regulations that safeguard the public health and safety in all communities, large andsmall.This comprehensive building code establishes minimum regulations for building systems usingprescriptive and performance-related provisions. It is founded on broad-based principles that makepossible the use of new materials and new building designs. This 2015 edition is fully compatiblewith all of the International Codes (I-Codes ) published by the International Code Council (ICC) ,including the International Energy Conservation Code , International Existing Building Code , International Fire Code , International Fuel Gas Code , International Green Construction Code , International Mechanical Code , ICC Performance Code , International Plumbing Code , InternationalPrivate Sewage Disposal Code , International Property Maintenance Code , International Residential Code , International Swimming Pool and Spa Code , International Wildland-Urban InterfaceCode and International Zoning Code .The International Building Code provisions provide many benefits, among which is the modelcode development process that offers an international forum for building professionals to discussperformance and prescriptive code requirements. This forum provides an excellent arena to debateproposed revisions. This model code also encourages international consistency in the application ofprovisions.DevelopmentThe first edition of the International Building Code (2000) was the culmination of an effort initiatedin 1997 by the ICC. This included five drafting subcommittees appointed by ICC and consisting ofrepresentatives of the three statutory members of the International Code Council at that time,including: Building Officials and Code Administrators International, Inc. (BOCA), International Conference of Building Officials (ICBO) and Southern Building Code Congress International (SBCCI). Theintent was to draft a comprehensive set of regulations for building systems consistent with andinclusive of the scope of the existing model codes. Technical content of the latest model codes promulgated by BOCA, ICBO and SBCCI was utilized as the basis for the development, followed by public hearings in 1997, 1998 and 1999 to consider proposed changes. This 2015 edition presents thecode as originally issued, with changes reflected in the 2003, 2006, 2009 and 2012 editions and further changes approved by the ICC Code Development Process through 2014. A new edition such asthis is promulgated every 3 years.This code is founded on principles intended to establish provisions consistent with the scope of abuilding code that adequately protects public health, safety and welfare; provisions that do notunnecessarily 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.AdoptionThe International Code Council maintains a copyright in all of its codes and standards. Maintainingcopyright allows the ICC to fund its mission through sales of books, in both print and electronic formats. The International Building Code is designed for adoption and use by jurisdictions that recognize and acknowledge the ICC’s copyright in the code, and further acknowledge the substantialshared value of the public/private partnership for code development between jurisdictions and theICC.The ICC also recognizes the need for jurisdictions to make laws available to the public. AllICC codes and ICC standards, along with the laws of many jurisdictions, are available for free2015 INTERNATIONAL BUILDING CODE iii
in a nondownloadable form on the ICC’s website. Jurisdictions should contact the ICC atadoptions@iccsafe.org to learn how to adopt and distribute laws based on the InternationalBuilding Code in a manner that provides necessary access, while maintaining the ICC’s copyright.MaintenanceThe International Building Code is kept up to date through the review of proposed changes submitted by code enforcing officials, industry representatives, design professionals and other interestedparties. Proposed changes are carefully considered through an open code development process inwhich all interested and affected parties may participate.The contents of this work are subject to change through both the code development cycles andthe governmental body that enacts the code into law. For more information regarding the codedevelopment process, contact the Codes and Standards Development Department of the International Code Council.While the development procedure of the International Building Code ensures the highest degreeof care, the ICC, its members and those participating in the development of this code do not acceptany liability resulting from compliance or noncompliance with the provisions because the ICC doesnot have the power or authority to police or enforce compliance with the contents of this code.Only the governmental body that enacts the code into law has such authority.Code Development Committee Responsibilities(Letter Designations in Front of Section Numbers)In each code development cycle, code change proposals to this code are considered at the CodeDevelopment Hearings by 11 different code development committees. Four of these committeeshave primary responsibility for designated chapters and appendices as follows:IBC – Fire SafetyCode Development Committee [BF]: Chapters 7, 8, 9, 14, 26IBC – GeneralCode Development Committee [BG]: Chapters 2, 3, 4, 5, 6, 12, 27, 28, 29, 30, 31, 32, 33,Appendices A, B, C, D, KIBC – Means of EgressCode Development Committee [BE]: Chapters 10, 11, Appendix EIBC – StructuralCode Development Committee [BS]: Chapters 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,Appendices F, G, H, I, J, L, MCode change proposals to sections of the code that are preceded by a bracketed letter designation, such as [A], will be considered by a committee other than the building code committee listedfor the chapter or appendix above. For example, proposed code changes to Section [F] 307.1.1 willbe considered by the International Fire Code Development Committee during the Committee ActionHearing in the 2016 (Group B) code development cycle.Another example is Section [BF] 1505.2. While code change proposals to Chapter 15 are primarily the responsibility of the IBC – Structural Code Development Committee, which considers codechange proposals during the 2016 (Group B) code development cycle, Section 1505.2 is the responsibility of the IBC – Fire Safety Code Development Committee, which considers code change proposals during the 2015 (Group A) code development cycle.The bracketed letter designations for committees responsible for portions of this code are as follows:[A] Administrative Code Development Committee;[BE] IBC – Means of Egress Code Development Committee;iv2015 INTERNATIONAL BUILDING CODE
[BF] IBC – Fire Safety Code Development Committee;[BG] IBC – General Code Development Committee;[BS] IBC – Structural Code Development Committee;[E] International Energy Conservation Code Development Committee (Commercial EnergyCommittee or Residential Energy Committee, as applicable);[EB] International Existing Building Code Development Committee;[F] International Fire Code Development Committee;[FG] International Fuel Gas Code Development Committee;[M] International Mechanical Code Development Committee; and[P] International Plumbing Code Development Committee.For the development of the 2018 edition of the I-Codes, there will be three groups of code development committees and they will meet in separate years. Note that these are tentative groupings.Group A Codes(Heard in 2015, Code Change ProposalsDeadline: January 12, 2015)International Building Code– Fire Safety (Chapters 7, 8, 9, 14, 26)– Means of Egress(Chapters 10, 11, Appendix E)– General (Chapters 2-6, 12, 27-33,Appendices A, B, C, D, K)International Fuel Gas CodeInternational Existing Building CodeInternational Mechanical CodeInternational Plumbing CodeInternational Private SewageDisposal CodeInternational Property MaintenanceCodeInternational Residential Code– IRC - Mechanical (Chapters 12-24)– IRC - Plumbing(Chapters 25-33, Appendices G, I, N, P)International Swimming Pool and SpaCodeInternational Zoning CodeGroup B Codes(Heard in 2016, Code Change ProposalsDeadline: January 11, 2016)Group C Codes(Heard in 2017, Code Change ProposalsDeadline: January 11, 2017)Administrative Provisions (Chapter 1 ofall codes except IRC and IECC, adminis- Internationaltrative updates to currently referenced Codestandards, and designated definitions)GreenConstructionInternational Building Code– Structural(Chapters 15-25, Appendices F, G,H, I, J, L, M)International Energy Conservation CodeInternational Fire CodeInternational Residential Code– IRC - Building (Chapters 1-10,Appendices E, F, H, J, K, L, M, O, R,S, T, U)International Wildland-Urban InterfaceCodeNote: Proposed changes to the ICC Performance Code will be heard by the code development committee noted in brackets [ ]in the text of the code.Code change proposals submitted for code sections that have a letter designation in front ofthem will be heard by the respective committee responsible for such code sections. Because different committees hold code development hearings in different years, proposals for this code will beheard by committees in both the 2015 (Group A) and the 2016 (Group B) code development cycles.2015 INTERNATIONAL BUILDING CODE v
For instance, every section of Chapter 16 is the responsibility of the IBC – Structural Committee,and, as noted in the preceding table, that committee will hold its committee action hearings in 2016to consider code change proposals for the chapters for which it is responsible. Therefore any proposals received for Chapter 16 of this code will be assigned to the IBC – Structural Committee, whichwill consider code change proposals in 2016, during the Group B code change cycle.As another example, every section of Chapter 1 of this code is designated as the responsibility ofthe Administrative Code Development Committee, and that committee is part of the Group B portion of the hearings. This committee will hold its committee action hearings in 2016 to consider allcode change proposals for Chapter 1 of this code and proposals for Chapter 1 of all I-Codes exceptthe International Energy Conservation Code, International Residential Code and ICC PerformanceCode. Therefore, any proposals received for Chapter 1 of this code will be assigned to the Administrative Code Development Committee for consideration in 2016.It is very important that anyone submitting code change proposals understand which code development committee is responsible for the section of the code that is the subject of the code changeproposal. For further information on the code development committee responsibilities, please visitthe ICC website at www.iccsafe.org/scoping.Marginal MarkingsSolid vertical lines in the margins within the body of the code indicate a technical change from therequirements of the 2012 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 item in alist of items or a table has been deleted.A single asterisk [*] placed in the margin indicates that text or a table has been relocated withinthe code. A double asterisk [**] placed in the margin indicates that the text or table immediatelyfollowing it has been relocated there from elsewhere in the code. The following table indicates suchrelocations in the 2015 edition of the International Building Code.vi2015 LOCATION2012 LOCATION712.1.13.2903.3.8 through 903.3.8.5915100610071019.31504.22111.2Table 08.71014.3, 1015, 10211015.2, 1021.31009.31711.22101.3.1Table 2304.619111210.43004.4713.14.1 and 713.14.1.12015 INTERNATIONAL BUILDING CODE
TABLE OF CONTENTSCHAPTER 1SCOPE AND ADMINISTRATION. . . . 1311Storage Group S . . . . . . . . . . . . . . . . . . . . . . . . . . 50312Utility and Miscellaneous Group U . . . . . . . . . . . 51PART 1—SCOPE AND APPLICATION. . . . . . . . . . . . . 1SectionCHAPTER 4101General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1102Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1SPECIAL DETAILEDREQUIREMENTS BASED ONUSE AND OCCUPANCY . . . . . . . . . . 53SectionPART 2—ADMINISTRATION ANDENFORCEMENT . . . . . . . . . . . . . . . . . . . . . . . 2401Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53402Covered Mall and Open Mall Buildings . . . . . . . 53103Department of Building Safety. . . . . . . . . . . . . . . . 2403High-rise Buildings . . . . . . . . . . . . . . . . . . . . . . . 57104Duties and Powers of Building Official . . . . . . . . . 2404Atriums. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60105Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4405Underground Buildings . . . . . . . . . . . . . . . . . . . . 61106Floor and Roof Design Loads. . . . . . . . . . . . . . . . . 6406Motor-vehicle-related Occupancies . . . . . . . . . . . 62107Submittal Documents . . . . . . . . . . . . . . . . . . . . . . . 6407Group I-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66108Temporary Structures and Uses . . . . . . . . . . . . . . . 7408Group I-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69109Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7409Motion Picture Projection Rooms . . . . . . . . . . . . 71110Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8410111Certificate of Occupancy . . . . . . . . . . . . . . . . . . . . 9Stages, Platforms and TechnicalProduction Areas . . . . . . . . . . . . . . . . . . . . . . . 72112Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . 9411Special Amusement Buildings . . . . . . . . . . . . . . . 74113Board of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . 9412Aircraft-related Occupancies . . . . . . . . . . . . . . . . 74114Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10413Combustible Storage . . . . . . . . . . . . . . . . . . . . . . 77115Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . 10414Hazardous Materials . . . . . . . . . . . . . . . . . . . . . . 78116Unsafe Structures and Equipment . . . . . . . . . . . . 10415Groups H-1, H-2, H-3, H-4 and H-5 . . . . . . . . . . 81416Application of Flammable Finishes . . . . . . . . . . . 91417Drying Rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . 91418Organic Coatings . . . . . . . . . . . . . . . . . . . . . . . . . 91CHAPTER 2DEFINITIONS. . . . . . . . . . . . . . . . . . . . 11Section201General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11419Live/work Units . . . . . . . . . . . . . . . . . . . . . . . . . . 91202Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11420Groups I-1, R-1, R-2, R-3 and R-4 . . . . . . . . . . . 92CHAPTER 3USE AND OCCUPANCYCLASSIFICATION. . . . . . . . . . . . . . . . 41Section301General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41302Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41303Assembly Group A . . . . . . . . . . . . . . . . . . . . . . . . 41304Business Group B . . . . . . . . . . . . . . . . . . . . . . . . . 42305Educational Group E . . . . . . . . . . . . . . . . . . . . . . 42421Hydrogen Fuel Gas Rooms . . . . . . . . . . . . . . . . . 93422Ambulatory Care Facilities . . . . . . . . . . . . . . . . . 93423Storm Shelters . . . . . . . . . . . . . . . . . . . . . . . . . . . 94424Children’s Play Structures . . . . . . . . . . . . . . . . . . 94425Hyperbaric Facilities . . . . . . . . . . . . . . . . . . . . . . 95426Combustible Dusts,Grain Processing and Storage . . . . . . . . . . . . . 95CHAPTER 5GENERAL BUILDINGHEIGHTS AND AREAS . . . . . . . . . . . 97306Factory Group F . . . . . . . . . . . . . . . . . . . . . . . . . . 42307High-hazard Group H . . . . . . . . . . . . . . . . . . . . . . 43Section308Institutional Group I . . . . . . . . . . . . . . . . . . . . . . . 48501General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97309Mercantile Group M . . . . . . . . . . . . . . . . . . . . . . . 49502Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97310Residential Group R . . . . . . . . . . . . . . . . . . . . . . . 49503General Building Height and Area Limitations . . 972015 INTERNATIONAL BUILDING CODE xxi
TABLE OF CONTENTS504Building Height and Number of Stories. . . . . . . . 97802Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203505Mezzanines and Equipment Platforms . . . . . . . . . 98803Wall and Ceiling Finishes . . . . . . . . . . . . . . . . . 203506Building Area . . . . . . . . . . . . . . . . . . . . . . . . . . . 101804Interior Floor Finish . . . . . . . . . . . . . . . . . . . . . . 206507Unlimited Area Buildings. . . . . . . . . . . . . . . . . . 105805Combustible Materials in Types Iand II Construction. . . . . . . . . . . . . . . . . . . . . 206508Mixed Use and Occupancy. . . . . . . . . . . . . . . . . 107509Incidental Uses . . . . . . . . . . . . . . . . . . . . . . . . . . 108806Decorative Materials and Trim . . . . . . . . . . . . . 206Special Provisions . . . . . . . . . . . . . . . . . . . . . . . 110807Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207808Acoustical Ceiling Systems . . . . . . . . . . . . . . . . 207510CHAPTER 6TYPES OF CONSTRUCTION . . . . . 113CHAPTER 9SectionFIRE PROTECTION SYSTEMS . . . 209601General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113Section602Construction Classification . . . . . . . . . . . . . . . . 113901General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209603Combustible Material inTypes I and II Construction . . . . . . . . . . . . . . 115902Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209903Automatic Sprinkler Systems . . . . . . . . . . . . . . 210904Alternative AutomaticFire-extinguishing Systems . . . . . . . . . . . . . . 216905Standpipe Systems . . . . . . . . . . . . . . . . . . . . . . . 219CHAPTER 7FIRE AND SMOKEPROTECTION FEATURES . . . . . . . 117Section906Portable Fire Extinguishers . . . . . . . . . . . . . . . . 221701General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117907Fire Alarm and Detection Systems . . . . . . . . . . 223702Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117908Emergency Alarm Systems . . . . . . . . . . . . . . . . 234703Fire-resistance Ratings and Fire Tests . . . . . . . . 117909Smoke Control Systems . . . . . . . . . . . . . . . . . . . 235704Fire-resistance Rating ofStructural Members . . . . . . . . . . . . . . . . . . . . 118910Smoke and Heat Removal . . . . . . . . . . . . . . . . . 243705Exterior Walls. . . . . . . . . . . . . . . . . . . . . . . . . . . 120911Fire Command Center . . . . . . . . . . . . . . . . . . . . 244706Fire Walls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124707Fire Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127708Fire Partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 128709Smoke Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . 129710Smoke Partitions. . . . . . . . . . . . . . . . . . . . . . . . . 130711Horizontal Assemblies . . . . . . . . . . . . . . . . . . . . 130CHAPTER 10 MEANS OF EGRESS. . . . . . . . . . . . . 249712Vertical Openings. . . . . . . . . . . . . . . . . . . . . . . . 131Section713Shaft Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . 1321001Administration . . . . . . . . . . . . . . . . . . . . . . . . . . 249714Penetrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1341002Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249715Fire-resistant Joint Systems . . . . . . . . . . . . . . . . 1371003General Means of Egress . . . . . . . . . . . . . . . . . . 250716Opening Protectives . . . . . . . . . . . . . . . . . . . . . . 1371004Occupant Load . . . . . . . . . . . . . . . . . . . . . . . . . . 251717Ducts and Air Transfer Openings. . . . . . . . . . . . 1431005Means of Egress Sizing . . . . . . . . . . . . . . . . . . . 252718Concealed Spaces . . . . . . . . . . . . . . . . . . . . . . . . 1481006719Fire-resistance Requirements for Plaster . . . . . . 150Number of Exits andExit Access Doorways . . . . . . . . . . . . . . . . . . 253720Thermal- and Sound-insulating Materials . . . . . 1501007721Prescriptive Fire Resistance . . . . . . . . . . . . . . . . 151Exit and Exit AccessDoorway Configuration . . . . . . . . . . . . . . . . . 256722Calculated Fire Resistance . . . . . . . . . . . . . . . . . 1521008Means of Egress Illumination . . . . . . . . . . . . . . 2571009Accessible Means of Egress. . . . . . . . . . . . . . . . 257CHAPTER 8INTERIOR FINISHES . . . . . . . . . . . . 203Section801xxiiGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203912Fire Department Connections . . . . . . . . . . . . . . 245913Fire Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246914Emergency Responder Safety Features . . . . . . . 246915Carbon Monoxide Detection . . . . . . . . . . . . . . . 247916Emergency Responder Radio Coverage . . . . . . 2481010Doors, Gates and Turnstiles . . . . . . . . . . . . . . . . 2601011Stairways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2681012Ramps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2712015 INTERNATIONAL BUILDING CODE
TABLE OF CONTENTS1013Exit Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272CHAPTER 13 ENERGY EFFICIENCY . . . . . . . . . . 3171014Handrails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273Section1015Guards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27413011016Exit Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2761017Exit Access Travel Distance. . . . . . . . . . . . . . . . 277CHAPTER 14 EXTERIOR WALLS . . . . . . . . . . . . . 3191018Aisles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277Section1019Exit Access Stairways and Ramps . . . . . . . . . . . 2781401General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3191020Corridors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2781402Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3191021Egress Balconies. . . . . . . . . . . . . . . . . . . . . . . . . 2801403Performance Requirements . . . . . . . . . . . . . . . . 3191022Exits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2801404Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3201023Interior Exit Stairways and Ramps. . . . . . . . . . . 2801405Installation of Wall Coverings . . . . . . . . . . . . . . 3211024Exit Passageways . . . . . . . . . . . . . . . . . . . . . . . . 28214061025Luminous Egress Path Markings . . . . . . . . . . . . 283Combustible Materials on theExterior Side of Exterior Walls . . . . . . . . . . . 3261026Horizontal Exits . . . . . . . . . . . . . . . . . . . . . . . . . 2841407Metal Composite Materials (MCM) . . . . . . . . . 3271027Exterior Exit Stairways and Ramps . . . . . . . . . . 28514081028Exit Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . 286Exterior Insulation andFinish Systems (EIFS) . . . . . . . . . . . . . . . . . . 33014091029Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287High-pressure Decorative Exterior-gradeCompact Laminates (HPL) . . . . . . . . . . . . . . 3301030Emergency Escape and Rescue . . . . . . . . . . . . . 2931410Plastic Composite Decking . . . . . . . . . . . . . . . . 331CHAPTER 11 ACCESSIBILITY . . . . . . . . . . . . . . . . 295SectionGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317CHAPTER 15 ROOF ASSEMBLIES ANDROOFTOP STRUCTURES . . . . . . . . 3331101General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295Section1102Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2951501General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3331103Scoping Requirements . . . . . . . . . . . . . . . . . . . . 2951502Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3331104Accessible Route . . . . . . . . . . . . . . . . . . . . . . . . 2961503Weather Protection. . . . . . . . . . . . . . . . . . . . . . . 3331105Accessible Entrances . . . . . . . . . . . . . . . . . . . . . 2971504Performance Requirements . . . . . . . . . . . . . . . . 3341106Parking and Passenger Loading Facilities . . . . . 2971505Fire Classification . . . . . . . . . . . . . . . . . . . . . . . 3351107Dwelling Units and Sleeping Units . . . . . . . . . . 2981506Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3361108Special Occupancies. . . . . . . . . . . . . . . . . . . . . . 3021507Requirements for Roof Coverings . . . . . . . . . . . 3361109Other Features and Facilities . . . . . . . . . . . . . . . 3051508Roof Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . 3481110Recreational Facilities . . . . . . . . . . . . . . . . . . . . 3081509Radiant Barriers Installed Above Deck . . . . . . . 3481111Signage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3101510Rooftop Structures . . . . . . . . . . . . . . . . . . . . . . . 3481511Reroofing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3511512Photovoltaic Panels and Modules . . . . . . . . . . . 351CHAPTER 12 INTERIOR ENVIRONMENT . . . . . . 311SectionGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311CHAPTER 16 STRUCTURAL DESIGN. . . . . . . . . . 3531202Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311Section1203Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3111601General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3531204Temperature Control . . . . . . . . . . . . . . . . . . . . . 3131602Definitions and Notations . . . . . . . . . . . . . . . . . 3531205Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3131603Construction Documents . . . . . . . . . . . . . . . . . . 3531206Yards or Courts. . . . . . . . . . . . . . . . . . . . . . . . . . 3141604General Design Requirements . . . . . . . . . . . . . . 3541207Sound Transmission . . . . . . . . . . . . . . . . . . . . . . 3141605Load Combinations . . . . . . . . . . . . . . . . . . . . . . 3571208Interior Space Dimensions . . . . . . . . . . . . . . . . . 3141606Dead Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3591209Access to Unoccupied Spaces . . . . . . . . . . . . . . 3151607Live Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3591210Toilet and Bathroom Requirements . . . . . . . . . . 3151608Snow Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36612012015 INTERNATIONAL BUILDING CODE xxiii
TABLE OF CONTENTS1908Shotcrete. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4511609Wind Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3661610Soil Lateral Loads. . . . . . . . . . . . . . . . . . . . . . . . 3751611Rain Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380CHAPTER 20 ALUMINUM . . . . . . . . . . . . . . . . . . . . 4531612Flood Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380Section1613Earthquake Loads . . . . . . . . . . . . . . . . . . . . . . . . 3862001General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4531614Atmospheric Ice Loads. . . . . . . . . . . . . . . . . . . . 3992002Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4531615Structural Integrity . . . . . . . . . . . . . . . . . . . . . . . 399CHAPTER 21 MASONRY . . . . . . . . . . . . . . . . . . . . . 455CHAPTER 17 SPECIAL INSPECTIONSAND TESTS . . . . . . . . . . . . . . . . . . . . . 403Section2101General . .
May 30, 2014 · 2015 INTERNATIONAL BUILDING CODE iii PREFACE Introduction Internationally, code officials recognize the need for a modern, up-to-date building code addressing the design and installation of building systems through requirements emphasizing performance. The International Building Code , in this 2015 edition, is designed to meet these
