International Energy Conservation Code 2003

224 Pages·2000·10.449 MB·English

by  International Code Council

2003 International Energy Conservation Code®
First Printing: January 2003
Second Printing: April 2003
Third Printing: September 2003
Fourth Printing: April 2004
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.
ALLRIGHTSRESERVED.This2003InternationalEnergyConservationCode®isacopyrightedworkownedbytheInternational
CodeCouncil,Inc.Withoutadvancewrittenpermissionfromthecopyrightowner,nopartofthisbookmaybereproduced,distrib-
uted,ortransmittedinanyformorbyanymeans,including,withoutlimitation,electronic,opticalormechanicalmeans(bywayof
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mission to copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL
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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.
PREFACE
Introduction
Internationally,codeofficialsrecognizetheneedforamodern,up-to-dateenergyconservationcodeaddressingthedesignofen-
ergy-efficientbuildingenvelopesandinstallationofenergyefficientmechanical,lightingandpowersystemsthroughrequirements
emphasizingperformance.TheInternationalEnergyConservationCode®,inthis2003edition,isdesignedtomeettheseneeds
throughmodelcoderegulationsthatwillresultintheoptimalutilizationoffossilfuelandnondepletableresourcesinallcommuni-
ties, large and small.
Thiscomprehensiveenergyconservationcodeestablishesminimumregulationsforenergyefficientbuildingsusingprescriptive
andperformance-relatedprovisions.Itisfoundedonbroad-basedprinciplesthatmakepossibletheuseofnewmaterialsandnewen-
ergyefficientdesigns.This2003editionisfullycompatiblewithalltheInternationalCodes(“I-Codes”)publishedbytheInterna-
tionalCodeCouncil(ICC),includingtheInternationalBuildingCode,ICCElectricalCode,InternationalExistingBuildingCode,
International Fire Code, International Fuel Gas Code, International Mechanical Code, ICC Performance Code, International
PlumbingCode,InternationalPrivateSewageDisposalCode,InternationalPropertyMaintenanceCode,InternationalResiden-
tial Code, InternationalUrban-WildlandInterface CodeandInternational Zoning Code.
TheInternationalEnergyConservationCodeprovisionsprovidemanybenefits,amongwhichisthemodelcodedevelopment
processthatoffersaninternationalforumforenergyprofessionalstodiscussperformanceandprescriptivecoderequirements.This
forumprovidesanexcellentarenatodebateproposedrevisions.Thismodelcodealsoencouragesinternationalconsistencyinthe
application of provisions.
Development
Thefirsteditionofthe InternationalEnergyConservationCode(1998)wasbasedonthe1995editionoftheModelEnergyCode
promulgatedbytheCouncilofAmericanBuildingOfficials(CABO)andincludedchangesapprovedthroughtheCABOCodeDe-
velopmentProceduresthrough1997.CABOassignedallrightsandresponsibilitiestotheInternationalCodeCouncilanditsthree
statutorymembers:BuildingOfficialsandCodeAdministratorsInternational,Inc.(BOCA),InternationalConferenceofBuilding
Officials(ICBO)andSouthernBuildingCodeCongressInternational(SBCCI).This2003editionpresentsthecodeasoriginallyis-
sued,withchangesapprovedthroughtheICCCodeDevelopmentProcessthrough2002.Aneweditionsuchasthisispromulgated
every three years.
WiththedevelopmentandpublicationofthefamilyofInternationalCodesin2000,thecontinueddevelopmentandmaintenance
ofthemodelcodesindividuallypromulgatedbyBOCA(“BOCANationalCodes”),ICBO(“UniformCodes”)andSBCCI(“Stan-
dardCodes”)wasdiscontinued.This2003InternationalEnergyConservationCode,aswellasitspredecessor—the 2000edi-
tion—isintendedtobethesuccessorenergyconservationcodetothosecodespreviouslydevelopedbyBOCA,ICBOandSBCCI.
Thedevelopmentofasinglesetofcomprehensiveandcoordinated InternationalCodeswasasignificantmilestoneinthedevel-
opmentofregulationsforthebuiltenvironment.Thetimingofthispublicationmirrorsamilestoneinthechangeinstructureofthe
modelcodes,namely,thependingConsolidation ofBOCA,ICBOandSBCCIintotheICC.Theactivitiesandservicespreviously
provided by the individual model code organizations will be the responsibility of the Consolidated ICC.
Thiscodeisfoundedonprinciplesintendedtoestablishprovisionsconsistentwith thescopeofanenergyconservationcodethat
adequatelyconservesenergy;provisionsthatdonotunnecessarilyincreaseconstructioncosts;provisionsthatdonotrestricttheuse
ofnewmaterials,productsormethodsofconstruction;andprovisionsthatdonotgivepreferentialtreatmenttoparticulartypesor
classes of materials, products or methods of construction.
Adoption
TheInternationalEnergyConservationCodeisavailableforadoptionandusebyjurisdictionsinternationally.Itsusewithinagov-
ernmentaljurisdictionisintendedtobeaccomplishedthroughadoptionbyreferenceinaccordancewithproceedingsestablishing
thejurisdiction’slaws.Atthetimeofadoption,jurisdictionsshouldinserttheappropriateinformationinprovisionsrequiringspe-
cificlocalinformation,suchasthenameoftheadoptingjurisdiction.Theselocationsareshowninbracketedwordsinsmallcapital
lettersinthecodeandinthesampleordinance.Thesampleadoptionordinanceonpagevaddressesseveralkeyelementsofacode
adoption ordinance, including the information required for insertion into the code text.
Maintenance
TheInternationalEnergyConservationCodeiskeptuptodatethroughthereviewofproposedchangessubmittedbycodeenforc-
ingofficials,industryrepresentatives,designprofessionalsandotherinterestedparties.Proposedchangesarecarefullyconsidered
through an open code development process in which all interested and affected parties may participate.
2003 INTERNATIONAL ENERGY CONSERVATION CODE® iii
ThecontentsofthisworkaresubjecttochangeboththroughtheCodeDevelopmentCyclesandthegovernmentalbodythaten-
actsthecodeintolaw.Formoreinformationregardingthecodedevelopmentprocess,contacttheCodeandStandardDevelopment
Department of the International Code Council.
WhilethedevelopmentprocedureoftheInternationalEnergyConservationCodeassuresthehighestdegreeofcare,ICCandthe
foundingmembersofICC—BOCA,ICBO,SBCCI—theirmembers,andthoseparticipatinginthedevelopmentofthiscodedonot
acceptanyliabilityresultingfromcomplianceornoncompliancewiththeprovisionsbecauseICCanditsfoundingmembersdonot
havethepowerorauthoritytopoliceorenforcecompliancewiththecontentsofthiscode.Onlythegovernmentalbodythatenacts
the code into law has such authority.
Letter Designations in Front of Section Numbers
Ineachcodedevelopmentcycle,proposedchangestothiscodeareconsideredattheCodeDevelopmentHearingbytheInterna-
tionalEnergyConservationCodeDevelopmentCommittee,whoseactionconstitutesarecommendationtothevotingmembership
forfinalactionontheproposedchange.Proposedchangestoacodesectionwhosenumberbeginswithaletterinbracketsarecon-
sideredbyadifferentcodedevelopmentcommittee.Forinstance,proposedchangestocodesectionswhichhavetheletter[EB]in
front(e.g.,[EB]101.2.2.1),areconsideredbytheInternationalExistingBuildingCodeDevelopmentCommitteeattheCodeDevel-
opmentHearing.Wherethisdesignationisapplicabletotheentirecontentofamainsectionofthecode,thedesignationappearsat
the main section number and title and is not repeated at every subsection in that section.
Thecontentofsectionsinthiscodewhichbeginwithaletterdesignationismaintainedbyanothercodedevelopmentcommittee
inaccordancewiththefollowing:[B]=InternationalBuildingCodeDevelopmentCommittee;[EB]=InternationalExistingBuild-
ing Code Development Committee and [M] = International Mechanical Code Development Committee.
Marginal Markings
Solidverticallinesinthemarginswithinthebodyofthecodeindicateatechnicalchangefromtherequirementsofthe2000edition.
Deletion indicators ((cid:1)) are provided in the margin where a paragraph or item has been deleted.
iv 2003 INTERNATIONAL ENERGY CONSERVATION CODE®
ORDINANCE
TheInternationalCodesaredesignedandpromulgatedtobeadoptedbyreferencebyordinance.Jurisdictionswishingtoadoptthe
2003InternationalEnergyConservationCodeasanenforceableregulationgoverningenergyefficientbuildingenvelopesandin-
stallationofenergyefficientmechanical,lightingandpowersystemsshouldensurethatcertainfactualinformationisincludedin
the adopting ordinance at the time adoption is being considered by the appropriate governmental body. The following sample
adoptionordinanceaddressesseveralkeyelementsofacodeadoptionordinance,includingtheinformationrequiredforinsertion
into the code text.
SAMPLE ORDINANCE FOR ADOPTION OF
THE INTERNATIONAL ENERGY CONSERVATION CODE
ORDINANCE NO.________
Anordinanceofthe[JURISDICTION]adoptingthe2003editionoftheInternationalEnergyConservationCode,regulatingand
governingenergyefficientbuildingenvelopesandinstallationofenergyefficientmechanical,lightingandpowersystemsinthe
[JURISDICTION]; providing for the issuance of permits and collection of fees therefor; repealing Ordinance No. ______ of the
[JURISDICTION]and all other ordinances and parts of the ordinances in conflict therewith.
The[GOVERNINGBODY]of the[JURISDICTION]does ordain as follows:
Section1.Thatacertaindocument,three(3)copiesofwhichareonfileintheofficeofthe[TITLEOFJURISDICTION’SKEEPEROF
RECORDS]of[NAMEOFJURISDICTION],beingmarkedanddesignatedastheInternationalEnergyConservationCode,2003edi-
tion,includingtheAppendix[FILLINTHEAPPENDIXDETAILSBEINGADOPTED],aspublishedbytheInternationalCodeCouncil,
beandisherebyadoptedastheEnergyConservationCodeofthe[JURISDICTION],intheStateof[STATENAME]forregulatingand
governing energy efficient building envelopes and installation of energy efficient mechanical, lighting and power systems as
hereinprovided;providingfortheissuanceofpermitsandcollectionoffeestherefor;andeachandalloftheregulations,provi-
sions,penalties,conditionsandtermsofsaidEnergyConservationCodeonfileintheofficeofthe[JURISDICTION]areherebyre-
ferredto,adopted,andmadeaparthereof,asiffullysetoutinthisordinance,withtheadditions,insertions,deletionsandchanges,
if any, prescribed in Section 2 of this ordinance.
Section 2.The following sections are hereby revised:
Section 101.1. Insert:[NAMEOFJURISDICTION].
Section3.ThatOrdinanceNo.______of[JURISDICTION]entitled[FILLINHERETHECOMPLETETITLEOFTHEORDINANCEOR
ORDINANCESINEFFECTATTHEPRESENTTIMESOTHATTHEYWILLBEREPEALEDBYDEFINITEMENTION]andallotherordi-
nances or parts of ordinances in conflict herewith are hereby repealed.
Section4.Thatifanysection,subsection,sentence,clauseorphraseofthisordinanceis,foranyreason,heldtobeunconstitutional,
suchdecisionshallnotaffectthevalidityoftheremainingportionsofthisordinance.The[GOVERNINGBODY]herebydeclaresthat
itwouldhavepassedthisordinance,andeachsection,subsection,clauseorphrasethereof,irrespectiveofthefactthatanyoneor
more sections, subsections, sentences, clauses and phrases be declared unconstitutional.
Section5.ThatnothinginthisordinanceorintheEnergyConservationCodeherebyadoptedshallbeconstruedtoaffectanysuitor
proceedingimpendinginanycourt,oranyrightsacquired,orliabilityincurred,oranycauseorcausesofactionacquiredorexist-
ing,underanyactorordinanceherebyrepealedascitedinSection2ofthisordinance;norshallanyjustorlegalrightorremedyof
any character be lost, impaired or affected by this ordinance.
Section6.Thatthe[JURISDICTION’SKEEPEROFRECORDS]isherebyorderedanddirectedtocausethisordinancetobepub-
lished.(Anadditionalprovisionmayberequiredtodirectthenumberoftimestheordinanceistobepublishedandtospecifythatit
is to be in a newspaper in general circulation. Posting may also be required.)
Section 7.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[TIMEPERIOD]from and after the date of its final passage and adoption.
2003 INTERNATIONAL ENERGY CONSERVATION CODE® v
vi 2003 INTERNATIONAL ENERGY CONSERVATION CODE®
TABLE OF CONTENTS
CHAPTER1 ADMINISTRATION. . . . . . . . . . . . . . .1 CHAPTER7 BUILDINGDESIGNFORALL
Section COMMERCIALBUILDINGS . . . . .51
101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Section
102 Materials,SystemsandEquipment. . . . . . . . . . . . . .2 701 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
103 AlternateMaterials—Methodof
CHAPTER8 DESIGNBYACCEPTABLE
Construction,DesignorInsulating
PRACTICEFORCOMMERCIAL
Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BUILDINGS. . . . . . . . . . . . . . . . . . . . .53
104 ConstructionDocuments . . . . . . . . . . . . . . . . . . . . . .4
Section
105 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
801 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
106 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
802 BuildingEnvelopeRequirements . . . . . . . . . . . . . .53
107 ReferencedStandards. . . . . . . . . . . . . . . . . . . . . . . . .4
803 BuildingMechanicalSystems. . . . . . . . . . . . . . . . .59
CHAPTER2 DEFINITIONS. . . . . . . . . . . . . . . . . . . .5 804 ServiceWaterHeating. . . . . . . . . . . . . . . . . . . . . . .72
Section 805 ElectricalPowerandLightingSystems . . . . . . . . .74
201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 806 TotalBuildingPerformance. . . . . . . . . . . . . . . . . . .75
202 GeneralDefinitions . . . . . . . . . . . . . . . . . . . . . . . . . .5
CHAPTER9 CLIMATEMAPS . . . . . . . . . . . . . . .145
CHAPTER3 DESIGNCONDITIONS. . . . . . . . . . .11 Section
Section 901 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 902 ClimateZones. . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
302 ThermalDesignParameters. . . . . . . . . . . . . . . . . . .11
CHAPTER10 REFERENCEDSTANDARDS . . . .197
CHAPTER4 RESIDENTIALBUILDINGDESIGN
APPENDIX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
BYSYSTEMSANALYSISAND
DESIGNOFBUILDINGS
UTILIZINGRENEWABLE INDEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
ENERGYSOURCES . . . . . . . . . . . . .13
Section
401 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
402 SystemsAnalysis . . . . . . . . . . . . . . . . . . . . . . . . . . .13
CHAPTER5 RESIDENTIALBUILDINGDESIGN
BYCOMPONENTPERFORMANCE
APPROACH. . . . . . . . . . . . . . . . . . . . .17
Section
501 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
502 BuildingEnvelopeRequirements . . . . . . . . . . . . . .17
503 BuildingMechanicalSystemsand
Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
504 ServiceWaterHeating. . . . . . . . . . . . . . . . . . . . . . .42
505 ElectricalPowerandLighting. . . . . . . . . . . . . . . . .43
CHAPTER6 SIMPLIFIEDPRESCRIPTIVE
REQUIREMENTSFORDETACHED
ONE-ANDTWO-FAMILY
DWELLINGSANDGROUPR-2,R-4
ORTOWNHOUSERESIDENTIAL
BUILDINGS. . . . . . . . . . . . . . . . . . . . .45
Section
601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
602 BuildingEnvelope . . . . . . . . . . . . . . . . . . . . . . . . . .45
603 MechanicalSystems. . . . . . . . . . . . . . . . . . . . . . . . .50
604 ServiceWaterHeating. . . . . . . . . . . . . . . . . . . . . . .50
605 ElectricalPowerandLighting. . . . . . . . . . . . . . . . .50
2003 INTERNATIONAL ENERGY CONSERVATION CODE® vii
viii 2003 INTERNATIONAL ENERGY CONSERVATION CODE®
CHAPTER 1
ADMINISTRATION
SECTION 101 velope,mechanical,servicewater-heating,electricaldis-
GENERAL tributionorilluminationsystemorportionthereofshall
101.1 Title. These regulations shall be known as the Energy conformtotheprovisionsofthiscodeastheyrelateto
ConservationCodeof[NAMEOFJURISDICTION],andshallbe new construction without requiring the unaltered por-
tion(s)oftheexistingsystemtocomplywithallofthere-
cited as such. It is referred to herein as “this code.”
quirementsofthiscode.Additions,alterationsorrepairs
101.2Scope.Thiscodeestablishesminimumprescriptiveand
shallnotcauseanyoneoftheaforementionedandexist-
performance-relatedregulationsforthedesignofenergy-effi-
ingsystemstobecomeunsafe,hazardousoroverloaded.
cientbuildingsandstructuresorportionsthereofthatprovide
[EB] 101.2.2.3 Historic buildings. The provisions of
facilitiesorshelterforpublicassembly,educational,business,
thiscoderelatingtotheconstruction,alteration,repair,
mercantile,institutional,storageandresidentialoccupancies,
enlargement, restoration, relocation or movement of
aswellasthoseportionsoffactoryandindustrialoccupancies
buildingsorstructuresshallnotbemandatoryforexist-
designed primarily for human occupancy. This code thereby
ing buildings or structures specifically identified and
addressesthedesignofenergy-efficientbuildingenvelopesand
classifiedashistoricallysignificantbythestateorlocal
the selection and installation of energy-efficient mechanical,
jurisdiction,listedinTheNationalRegisterofHistoric
servicewater-heating,electricaldistributionandillumination
Placesorwhichhavebeendeterminedtobeeligiblefor
systemsandequipmentfortheeffectiveuseofenergyinthese
such listing.
buildings and structures.
Exception:Energyconservationsystemsandcomponents [EB]101.2.2.4Changeinoccupancy.Itshallbeunlaw-
fultomakeachangeintheoccupancyofanybuildingor
inexistingbuildingsundergoingrepair,alterationoraddi-
structurewhichwouldresultinanincreaseindemandfor
tions,andchangeofoccupancy,shallbepermittedtocom-
ply with theInternational Existing Building Code. eitherfossilfuelorelectricalenergysupplyunlesssuch
buildingorstructureismadetocomplywiththerequire-
101.2.1Exemptbuildings.Buildingsandstructuresindi-
mentsofthiscodeorotherwiseapprovedbytheauthority
cated in Sections 101.2.1.1 and 101.2.1.2 shall be exempt
having jurisdiction. The code official shall certify that
fromthebuildingenvelopeprovisionsofthiscode,butshall
suchbuildingorstructuremeetstheintentoftheprovi-
comply with the provisions for building, mechanical, ser-
sionsoflawgoverningbuildingconstructionforthepro-
vice water heating and lighting systems.
posednewoccupancyandthatsuchchangeofoccupancy
101.2.1.1 Separated buildings. Buildings and struc- doesnotresultinanyincreaseindemandforeitherfossil
tures,orportionsthereofseparatedbybuildingenvelope fuelorelectricalenergysupplyoranyhazardtothepub-
assembliesfromtheremainderofthebuilding,thathave lic health, safety or welfare.
apeakdesignrateofenergyusagelessthan3.4Btu/hper
101.2.3Mixedoccupancy.Whenabuildinghousesmore
squarefoot(10.7W/m2)or1.0wattpersquarefoot(10.7
thanoneoccupancy,eachportionofthebuildingshallcon-
W/m2) of floor area for space conditioning purposes.
formtotherequirementsfortheoccupancyhousedtherein.
101.2.1.2 Unconditioned buildings. Buildings and Where minor accessory uses do not occupy more than 10
structures or portions thereof which are neither heated percentoftheareaofanyfloorofabuilding,themajoruse
nor cooled. shall be considered the building occupancy. Buildings,
other than detached one- and two-family dwellings and
101.2.2Applicability.Theprovisionsofthiscodeshallap-
townhouses, with a height of four or more stories above
plytoallmattersaffectingorrelatingtostructuresandpre-
grade shall be considered commercial buildings for pur-
mises,assetforthinSection101.Where,inaspecificcase,
posesofthiscode,regardlessofthenumberoffloorsthatare
different sections of this code specify different materials,
classified as residential occupancy.
methodsofconstructionorotherrequirements,themostre-
strictive shall govern. 101.3Intent.Theprovisionsofthiscodeshallregulatethede-
signofbuildingenvelopesforadequatethermalresistanceand
[EB]101.2.2.1Existinginstallations.Exceptasother-
low air leakage and the design and selection of mechanical,
wiseprovidedforinthischapter,aprovisioninthiscode
electrical,servicewater-heatingandilluminationsystemsand
shallnotrequiretheremoval,alterationorabandonment
equipment which will enable effective use of energy in new
of,norpreventthecontinuedutilizationandmaintenance
buildingconstruction.Itisintendedthattheseprovisionspro-
of, an existing building envelope, mechanical, service
videflexibilitytopermittheuseofinnovativeapproachesand
water-heating,electricaldistributionorilluminationsys-
techniquestoachieveeffectiveutilizationofenergy.Thiscode
temlawfullyinexistenceatthetimeoftheadoptionof
is not intended to abridge safety, health or environmental re-
this code.
quirements under other applicable codes or ordinances.
[EB]101.2.2.2Additions,alterationsorrepairs.Addi-
tions,alterations,renovationsorrepairstoabuildingen-
2003 INTERNATIONAL ENERGY CONSERVATION CODE® 1
ADMINISTRATION
101.4Compliance.Compliancewiththiscodeshallbedeter- 102.5Identification.Materials,equipmentandsystemsshall
mined in accordance with Sections 101.4.1 and 101.4.2. beidentifiedinaccordancewithSections102.5.1,102.5.2and
102.5.3.
101.4.1Residentialbuildings.Forresidentialbuildingsthe
followingshallbeusedasthebasisforcomplianceassess- 102.5.1 Building envelope insulation. A thermal resis-
ment:asystemsapproachfortheentirebuilding(Chapter tance(R)identificationmarkshallbeappliedbythemanu-
4),anapproachbasedonperformanceofindividualcompo- facturer to each piece of building envelope insulation 12
nents of the building envelope (Chapter 5), an approach inches (305 mm) or greater in width.
basedonperformanceofthetotalbuildingenvelope(Chap-
Alternatively, the insulation installer shall provide a
ter5),anapproachbasedonacceptablepracticeforeachen-
signedanddatedcertificationfortheinsulationinstalledin
velopecomponent(Chapter5),anapproachbyprescriptive
eachelementofthebuildingenvelope,listingthetypeofin-
specificationforindividualcomponentsofthebuildingen-
sulationinstallationsinroof/ceilings,themanufacturerand
velope(Chapter5),oranapproachbasedonsimplified,pre-
theR-value.Forblown-inorsprayedinsulation,theinstaller
scriptivespecification(Chapter6)wheretheconditionsset
shallalsoprovidetheinitialinstalledthickness,thesettled
forth in Section 101.4.1.1 or 101.4.1.2 are satisfied.
thickness, the coverage area and the number of bags in-
101.4.1.1 Detached one- and two-family dwellings. stalled.Whereblown-inorsprayedinsulationisinstalledin
Whentheglazingareadoesnotexceed15percentofthe walls,floorsandcathedralceilings,theinstallershallpro-
gross area of exterior walls. videacertificationoftheinstalleddensityandR-value.The
installershallpostthecertificationinaconspicuousplace
101.4.1.2 Residential buildings, Group R-2, R-4 or
on the job site.
townhouses.Whentheglazingareadoesnotexceed25
percent of the gross area of exterior walls. 102.5.1.1 Roof/ceiling insulation. The thickness of
101.4.2Commercialbuildings.Forcommercialbuildings, roof/ceilinginsulationthatiseitherblowninorsprayed
aprescriptiveorperformance-basedapproach(Chapter7) shallbeidentifiedbythicknessmarkersthatarelabeled
orasspecifiedbyacceptablepractice(Chapter8)shallbe in inches or millimeters installed at least one for every
used as the basis for compliance assessment. 300squarefeet(28m2)throughouttheatticspace.The
markers shall be affixed to the trusses or joists and
markedwiththeminimuminitialinstalledthicknessand
minimumsettledthicknesswithnumbersaminimumof
SECTION 102
1inch(25mm)inheight.Eachmarkershallfacetheattic
MATERIALS,SYSTEMS AND EQUIPMENT
access.Thethicknessofinstalledinsulationshallmeetor
102.1 General. Materials, equipment and systems shall be exceedtheminimuminitialinstalledthicknessshownby
identifiedinamannerthatwillallowadeterminationoftheir the marker.
compliance with the applicable provisions of this code.
102.5.2Fenestrationproductrating,certificationandla-
102.2Materials,equipmentandsystemsinstallation.Allin- beling.U-factorsoffenestrationproducts(windows,doors
sulationmaterials,caulkingandweatherstripping,fenestration and skylights) shall be determined in accordance with
assemblies, mechanical equipment and systems components, NFRC100byanaccredited,independentlaboratory,andla-
andwater-heatingequipmentandsystemcomponentsshallbe beledandcertifiedbythemanufacturer.Thesolarheatgain
installedinaccordancewiththemanufacturer’sinstallationin- coefficient (SHGC) of glazed fenestration products (win-
structions. dows,glazeddoorsandskylights)shallbedeterminedinac-
cordance with NFRC 200 by an accredited, independent
102.3 Maintenance information. Required regular mainte-
laboratory, and labeled and certified by the manufacturer.
nance actions shall be clearly stated and incorporated on a
Where a shading coefficient for a fenestration product is
readily accessible label. Such label shall include the title or
used, it shall be determined by converting the product’s
publicationnumber,theoperationandmaintenancemanualfor
SHGC,asdeterminedinaccordancewithNFRC200,toa
thatparticularmodelandtypeofproduct.Maintenanceinstruc-
shading coefficient, by dividing the SHGC by 0.87. Such
tionsshallbefurnishedforequipmentthatrequirespreventive
certified and labeled U-factors and SHGCs shall be ac-
maintenance for efficient operation.
cepted for purposes of determining compliance with the
102.4Insulationinstallation.Roof/ceiling,floor,wallcavity building envelope requirements of this code.
andductdistributionsystemsinsulationshallbeinstalledina
WhenamanufacturerhasnotdeterminedproductU-fac-
mannerthatpermitsinspectionofthemanufacturer’sR-value
torinaccordancewithNFRC100foraparticularproduct
identification mark.
line,compliancewiththebuildingenveloperequirementsof
102.4.1Protectionofexposedfoundationinsulation.In- thiscodeshallbedeterminedbyassigningsuchproductsa
sulation applied to the exterior of foundation walls and defaultU-factorinaccordancewithTables102.5.2(1)and
around the perimeter of slab-on-grade floors shall have a 102.5.2(2).WhenaSHGCorshadingcoefficientisusedfor
rigid, opaque and weather-resistant protective covering to code compliance and a manufacturer has not determined
preventthedegradationoftheinsulation’sthermalperfor- productSHGCinaccordancewithNFRC200foraparticu-
mance.Theprotectivecoveringshallcovertheexposedarea larproductline,compliancewiththebuildingenvelopere-
oftheexteriorinsulationandextendaminimumof6inches quirements of this code shall be determined by assigning
(153 mm) below grade. such products a default SHGC in accordance with Table
2 2003 INTERNATIONAL ENERGY CONSERVATION CODE®