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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Buildingcodeupdate
presentedby
MarkS.GrahamVicePresident,TechnicalServices
Na3onalRoofingContractorsAssocia3on(NRCA)
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Prerequisites• Intermediate-toadvanced-level• Someknowledgeofcoderequirements• Generalknowledgeof2012I-codes• Understand…Iamthemessenger
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Somebackground• TheI-codesare“modelcodes”developedbytheInterna3onalCodeCouncil(ICC)
• Modelcodesserveasthetechnicalbasisforstateorlocalcodeadop3on
• Thecodeprovidestheminimumlegalrequirementsforbuildingconstruc3on…andopera3on
• Thecodeisenforcedbythe“authorityhavingjurisdic3on”(AHJ)
• Thecodecanalsoprovideabasisforconstruc3onclaims-relatedli3ga3on
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Interna9onalCodeCouncil(ICC)
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Publica9oncycle• 2000edi3on• 2003edi3on• 2006edi3on• 2009edi3on• 2012edi3on• 2015edi3on• 2018edi3on(currentlyindevelopment)
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Three-yearcodedevelopmentandpublica3oncycle
Roofing-specificprovisionsDiscussedinthispresenta3on
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Interna1onalBuildingCode,2015Edi1on
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• Applicabletoallbuildingsandstructures,exceptsthoseapplicabletoIRC2015
• Roofing-relatedrequirements:• Ch.10-Meansofegress• Ch.12-Interiorenvironment• Ch.13-Energyefficiency• Ch.15-Roofassembliesandroobopstructures
• Ch.16-Structuraldesign• Ch.20-Aluminum• Ch.22-Steel• Ch.24-Glassandglazing• Ch.26-Plas3c
Ch.10–Meansofegress
Sec.1015.6-Mechanicalequipment,systemsanddevices• Guardshavebeenrequiredforcomponentswhereservicesisrequiredwithin10b.ofroofedgeorwhereelevatedwalkwaysareraisedabove30inches
• Excep3onnowaddedforpermanentfallarrest/restraintanchors
• Devicesshallbereevaluatedforpossiblereplacementwhentheen3reroofcoveringisreplaced
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.12-Interiorenvironment
Sec.1203.2-Ven9la9onrequired• 1:150rulewith1:300excep3on• 1:300excep3onrewordedandmoreconsistentwithIRC• UnventedadcandunventedenclosedraberprovisionsaddinSec.1203.3-Unventedadcsandunventedenclosedraberassemblies
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Ch.13-EnergyefficiencySec.1301.1.1-Criteria• ReferencetotheInterna3onalEnergyConserva3onCode(IECC)
• ReferencetoIECC2015added
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.15-RoofassembliesandrooPopstructuresSec.1502-Defini9ons• Referencestochapter-specificdefini3onsinCh.2-Defini3ons
• Newtermsanddefini3onsadded:– Building-integratedphotovoltaic(BIPV)product– Photovoltaicmodule– Photovoltaicpanel– Photovoltaicpanelsystem– Photovoltaicshingles– Radiantbarrier
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Ch.15-RoofassembliesandrooPopstructures
Sec.1504.1-Windresistanceofroofs• WindresistancerequirementsforasphaltshinglesrelocatedfromSec.1507toSec.1504.1.1
• Asphaltshinglewindresistanceclassifica3ontablescombinedintoTable1504.1.1-Classifica3onofasphaltshingles
[Con3nued…]
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.15-RoofassembliesandrooPopstructuresSec.1504.1-Windresistanceofroofs• Windresistanceofstructuralmetalpanelroofsystemsisnowsubdivided:– Thru-fastened:FM4474,UL580orASTME1592– Standingseam:ASTME1592orUL580
• Aluminumpanelsnowallowedtobedesigned(tes3ngnotrequired)usingtheAluminumAssocia3on’sAluminumDesignManual
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Ch.15-RoofassembliesandrooPopstructuresSec.1505-Fireclassifica9on• SlateoverASTMD226,TypeIIunderlaymentoncombus3bledecksnowClassAwithouttes3ng
• BIPVproductsnowneedtobelistedandlabeledforfireclassifica3on
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.15-RoofassembliesandrooPopstructuresSec.1507-Requirementsforroofcoverings• NewrequirementsforPVshinglesaddedinSec.1507.17-Photvoltaicshingles– Deckrequirements– Slope– Underlayment– Fasteners/alachment– Materialstandards(UL1703)– Windresistance(ASTMD3161)
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Ch.15-RoofassembliesandrooPopstructuresSec.1505-Roofinsula9on• FM4450removed,NFPA276added• ASTMC1278(fiber-reinforcedgypsumboard)added• ASTMC1177(glass-facedgypsumboard)added
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.15-RoofassembliesandrooPopstructuresSec.1509-Radiantbarriersinstalledabovedeck• Newsec3onandrequirements– FM4450orUL1256tes3ng– ComplywithASTMC1313
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Ch.15-RoofassembliesandrooPopstructuresSec.1511-Reroofing(previouslySec.1510)• Re-covering/replacementlanguagesreformaled• Excep3onaddedclarifyingsecondarydrainsdonotneedtobeaddedinroofsystemre-coveringandreplacementprojects
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Interna1onalResiden1alCode,2015Edi1on
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• Applicabletoone-andtwo-familydwellingsandtownhousesnomorethanthreestoriesinheight
• Roofing-relatedrequirements:• Ch.8-Roof/ceilingconstruc3on• Ch.9-Roofassemblies
Ch.9-Roofassemblies
MostchangesincorporatedintoIBC2015,Chapter15havealsobeenincorporatedintoIRC2015
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.9-Roofassemblies
Sec.R905-Requirementsforroofcoverings• UnderlaymentrequirementsconsolidatedintoSec.R905.1.1-UnderlaymentandTableR905.1.1(1)-Underlaymenttypes
• Woodshingle/shakenails:– Hot-dippedgalvanizedorType304stainless-steel– Type316stainless-steelwithin15milesofsaltwatercoastalareasandforfire-retardantandpressure-impregnated,preserva3ve-treatedwoodshingles/shakes
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Ch.9-Roofassemblies• RoobopPVrequirements:– RemovedfromIRC2012,Ch.23-Solarenergysystems(IRC2015,Ch.23-Solarthermalenergysystems)
– AddedChapter3-Buildingplanning,Sec.R324-Solarenergysystems
– AddedR905.16-Photovoltaicshingles– AddedR907-Roobop-mountedphotovoltaicsystems– AddedR909-Roobop-mountedphotovoltaicpanelsystems
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Interna1onalEnergyConserva1onCode,2015Edi1on
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• Applicabletoallbuildings,includingexis3ngbuildings(reroofing)
• Format:• Commercialprovisions(C)vs.Residen3alprovisions(R)• Ch.1-ScopeandAdmin.• Ch.2-Defini3ons• Ch.3-Generalrequirements• Ch.4-Energyefficiency• Ch.5-Exis3ngbuildings• Ch.6-Referencestandards
IECC2015,Fig.C301.1-Climatezones
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch4[CE]-Commercialenergyefficiency
Sec.C401.2-Applica9on• ReferencetoASHRAE90.1changedfrom2010edi3onto2013edi3on
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Ch4[CE]-CommercialenergyefficiencySec.C402-Buildingenveloperequirements• Sec3onreformaled• Low-energybuildingsexempted:– Lessthan3.4Btu/h·b2or1.0wal/b2offloorarea– Nocondi9onedspace– Greenhouses
• Equipmentbuildingsexempted(Sec.C402.1.2)
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch4[CE]-CommercialenergyefficiencySec.C402.1.3-Insula9oncomponentR-value-basedmethod• UseTableC402.1.3
Sec.C402.1.4-AssemblyU-factor,C-factororF-factor-basedmethod• UseTableC402.1.4
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Roofing-specificadapta9onofTableC402.1.3CommercialBuildings(Insula3oncomponentR-value-basedmethod)
Climatezone Assemblydescrip9on
Insula9onen9relyabovedeck
Metalbuildings A^candother
1 R-20ci(allother)
R-19+R-11LS
R-38R-25ci(GroupR)
2R-25ci
3
4
R-30ci
R-38(exceptMarine4
5 R-38(allother)R-49(GroupR,Marine4)
6 R-25+R-11LS
R-497R-35ci R-30+R-11LS
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28ci=Con3nuousinsula3on;LS=Linersystem
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch4[CE]-CommercialenergyefficiencySec.C402.3-Roofsolarreflectanceandthermalemi`ance• Climatezones1,2and3,low-sloperoofsovercooled,condi3onedspaces(someexcep3ons)
• Three-yearagedsolarreflectance0.55andthree-yearthermalemilanceof0.75,orthree-yearagedsolarreflectanceindexof64
• Agedcalcula3onmethodbaseduponCRRC-1-12(Sec.C402.3.1)
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Ch4[CE]-CommercialenergyefficiencySec.C402.5-Airleakage-thermalenvelope(Mandatory)• AllClimatezones,except2B(IECC2012exempted
Climatezones1,2,and3)• Wholebuildingtes3ng(ASTME779);allowablemaximum
airleakagerateof0.40cfm/b2• Materials(Sec.C402.5.1.2.1)andAssemblies
(C402.5.1.2.2)op3ons• Deemed-to-complyMaterialsop3ons:
– ClosedcellSPF,minimum1.5pcfdensity,– Built-uproofingmembrane– Modifiedbituminousroofmembrane– Fully-adheredsingle-plyroofmembrane
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.4[CE]-CommercialenergyefficiencySec.C503-Altera9ons• Newexcep3ontoSec.503.1-General:
“4. Airbarriersshallnotberequiredforroofrecoverandroofmembranereplacementwherethealtera9onsorrenova3onstothebuildingdonotincludealtera9ons,renova3onsorrepairstotheremainderofthebuildingenvelope.”
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Interna1onalFireCode,2015Edi1on
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Applicability:• Structures,facili3esandcondi3ons
• Exis3ngcondi3onsandopera3ons
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Roofing-relatedprovisionsInterna9onalFireCode,2015Edi9on
• Sec.303-Asphaltkelles• Sec.317-Roobopgardens• Sec.605.11-Solarphotovoltaicsystems• Sec.905.3.8-Roobopgardens• Sec.3317-Safeguardingroofingopera3ons
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Ch.6-Buildingservicesandsystems
Sec.605.11-Solarphotovoltaicpowersystems• Sec3onreorganized• NewrequirementsapplicabletoGroupR3buildings(low-occupancyboardinghouses,carefacili3es)
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Interna1onalPlumbingCode,2015Edi1on
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• Applicabletoallplumbingsystems,exceptthoseapplicabletoIRC2015
• Roofing-relatedrequirements:• Ch.9-Stormdrainage
Ch.11-StormdrainageSec.1101.7-Roofdrainage• Designbaseduponmaximumpossiblewaterdepth;assumedrainsareblocked.
• [Sec.1105.2-Roofdrainflowrate]Baseduponheadofwaterabovetheroofdrain.
Sec.1103-Traps• Leadersandstormdrainsconnectedtoabuildingsewersystemshallnotberequiredtobetrapped.
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Ch.11-StormdrainageSec.1101.6-Sizeofconductors,leadersandstormdrains• Designroofdrainagebasedonflowrateofroofdrain,Table1106.2-Stormdrainpipesizing(gpm)andTable1106.3-Ver3calleadersizing(gpm)
• Designgulersbaseduponflowratefromtheroofsurface,Table1106.6-Horizontalgulersizing(gpm)andTable1106.3-Ver3calleadersizing(gpm)
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Alterna9vematerials,designandmethodsofconstruc9onandequipment• IBC2015,Sec.104.11• IRC2015,Sec.R104.11• IECC2015,Sec.C102.1andSec.R102.1• IFC2015,Sec.104.9• IPC2015,Sec.105.2
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ProfessionalRoofing,June2008
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lCC/NIBSsurveywww.ICCsafe.org
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Atypicalcodeofficial• Betweentheagesof55and64• Ajurisdic3onemployee(ratherthanthird-partyprovider)• Worksinaone-tonine-personjurisdic3on,lessthan75,000inpopula3on
• Earnsbetween$50,000and$75,000(mean2012salarywas$51,017accordingtotheU.S.CensusBureau)
• Has26to35yearsofexperienceinthebuildingindustry,butonlyfiveto15yearsasacodeofficial
• Enteredthecodeprofessionintheir30s;heldonetothreepriorjobs;firstjobwasasatradesperson
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Atypicalcodeofficial-con9nued• Maypossessabachelor’sdegree(27percent),orhavenoaddi3onaleduca3onbeyondhighschool(25percent)
• Iftheyholdabachelor’sdegree,itisprobablyinengineering,butitcouldbeinmanagement,accoun3ng,finance,etc.
• Holdsaprofessionallicense,cer3ficate,cer3fica3onorothercreden3al
• Currentroleisasainspector,planreviewerordepartmentmanager;possiblyalloftheseroles
• Expecttoleavetheprofessioninthenextfiveto15years.
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ProfessionalRoofing,March2015Pages54-60
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NRCAcodemanualsshop.nrca.netor(866)ASK-NRCA
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ConsiderjoiningICC
Membershipcategories:• Corporatemember:$400(completecollec3on)• Buildingsafetyprofessionalmember:$150(1code)
hlp://www.iccsafe.org/Membership/Pages/join.aspx
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Lookingintothefuture….
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BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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WinddesignforroofassembliesSpecifyingawindwarrantee,initself,
isnotproperwinddesign
Properwinddesign• Determinewindloads– IBCCh.16-StructuralDesign– ASCE7-10,“MinimumDesignLoadsforBuildingsandOtherStructures”
• Designforresistance– FM4474– UL580orUL1897
IBCrequires(Sec.1603)designwindloadstobeshownintheConstruc9onDocuments
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Designwindloaddetermina9onwww.roofwinddesigner.com
FM1-28hasbeenupdatedwww.fmglobaldatasheets.com
• October2015update• BaseduponASCE7-05withenhancements
• Reformaled• Becau3ousofFM-insuredprojects
• SeeProfessionalRoofing,March2016
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ProfessionalRoofing,March2016
• UseRoofNav’sra3ngscalculator
• Applya2.0safetyfactor• Roofoverhangfactors(Table7)
• Windbornedebrissepara3ondistances
• Roof-mountedequipment(ASCE7-10)
• Tornado-resistantdesign(Appendix)
ComparingFM1-28toASCE7-05andASCE7-10
Document Basicwindspeed(mph)
Designwindpressure(psf)
Zone1(Field)
Zone2(Perimeter)
Zone3(Corner)
FM1-28(withoutSF)
v=12043 72 108
FM1-28(w/2.0SF) 86 144 216
ASCE7-05(withoutSF)
v=12038 63 95
ASCE7-05(w/2.0SF) 76 126 190
ASCE7-10Strengthdesign vULT=150 59 99 148
ASCE7-10ASD(withoutSF)
vASD=11635 59 89
ASCE7-10ASD(w/2.0SF) 71 118 178
Example:AmanufacturingbuildinglocatedinNewOrleans,LA.Thebuildingisanenclosedstructurewithalow-sloperoofsystemandaroofheightof33b.ThebuildingislocatedinanareathatiscategorizedasExposureCategoryC.
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ASCE7-16(publicreviewdraP)
• Revisedbasicwindspeedmap• Changes(andnew)pressurecoefficients• RevisedperimeterandcornerzonesExpecthigherfield,perimeterandcorner
upliRpressures
ASCE7-10basicwindspeedmapFig.1607A--VultforRiskCategoryIIBuildings
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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ASCE7-16(draP)basicwindspeedmapRiskCategoryIIBuildings
GCppressurecoefficientsh≤60b.,gableroofs≤7degrees
Zone ASCE7-10 ASCE7-16(draP)
1’ -- -0.9
1 -1.0 -1.7
2(perimeter) -1.8 -2.3
3(corners) -2.8 -3.2
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Zonesh≤60b.,gableroofs≤7degrees
ASCE7-10 ASCE7-16(draP)
ProperwinddesignisoRen9mesavoided…andit’sonlygoingtogetmorecomplicated
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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TheNRCARoofingManual
NRCAApp
• NRCAAppavailableontheAppleStoreandGooglePlayStorefortablets• iPhoneAppalsoavailable• RegisterwithinAppasbeinganNRCAmember• TheNRCARoofingManualisviewabletoNRCAmembers• Favoriteandsendpagesfeatures
BuildingCodeUpdateNorth/EastRoofingContractorsAssocia3on
March31,2016
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Manualonlinewww.nrca.net
• AvailabletoallNRCAmemberregisteredusers(mul3pleuserspermembercompany)• “Membersonly”sec3on,clickon“Myaccount”,the“Electronicfile”• View,downloadandprint
MarkS.GrahamVicePresident,TechnicalServicesNa3onalRoofingContractorsAssocia3on10255WestHigginsRoad,600Rosemont,Illinois60018-5607(847)299-9070mgraham@nrca.netwww.nrca.netTwiler: @MarkGrahamNRCAPersonalwebsite:www.MarkGrahamNRCA.com
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