Designation:D5082–99(Reapproved2005)StandardPracticeforApplicationofMechanicallyAttachedPoly(VinylChloride)SheetRoofing1ThisstandardisissuedunderthefixeddesignationD5082;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstheminimumrequirementsfortheinstallationofmechanicallyattachedpoly(vinylchloride)roof-ing.1.2Forthepurposeofthisapplicationpractice,thestructureanddeckareassumedtobemechanicallysound,abletoaccepttheweightofthemembraneandotherroofingsystemmateri-als,complywithlocalbuildingcodes,andotherroofingrequirements.Theinsulationlayer(s)andvaporretarder,ifspecified,areassumedtobeinplace,secured,andacceptableforusewiththemembrane.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.2.ReferencedDocuments2.1ASTMStandards:2D1079TerminologyRelatingtoRoofing,Waterproofing,andBituminousMaterialsD4434SpecificationforPoly(VinylChloride)SheetRoof-ing2.2OtherStandards:FactoryMutualResearchCorporationApprovalStandard,NumberFM4470,ClassIRoofCovers,April198633.Terminology3.1Definitions—Fordefinitionsoftermsusedinthisprac-tice,seeTerminologyD1079.4.MaterialsDefinitions4.1Poly(VinylChloride)SheetsRoofing—RoofingmaterialthatmeetstherequirementsofSpecificationD4434.4.2LapSeamSealant—Whenrequiredbythemanufacturer/supplier,provideacompatiblesealantthatwillbeappliedtotheexposededgeoftheseam.4.3MechanicalAffıxments—Themechanicalfastenersandplates,discs,bars,orstripsspecifiedforuseinthesystemmustmeettheguidelinesoutlinedinFMStandard4470forsurfacecorrosionandshallmeetthespecificrequirementsofthemanufacturer/supplier.5.DeliveryofMat...