Designation:C1535−05(Reapproved2017)StandardPracticeforApplicationofExteriorInsulationandFinishSystemsClassPI1ThisstandardisissuedunderthefixeddesignationC1535;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1ThispracticecoverstheminimumrequirementsandproceduresforfieldorprefabricatedapplicationofClassPIExteriorInsulationandFinishSystems(EIFS).ClassPIEIFSaresystemsappliedoverpolyisocyanurateinsulationboard,inwhichthebasecoatrangesfromnotlessthan1⁄16in.(1.6mm)to1⁄4in.(6.4mm)indrythickness,dependinguponthenumberofnonmetallicreinforcingmeshlayersencapsulatedinthebasecoat.Thebasecoatisthencoveredwithafinishcoatofvariousthicknessinavarietyoftexturesandcolors.Theinsulationboardshallbeappliedoverasubstrateoroveropenframing.1.2ThispracticedoesnotcoverClassPIEIFSwithdrain-age.ConsulttheEIFSproducerforinformation.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSI(metric)valuesgiveninparenthesesareapproximateandareprovidedforinformationpurposesonly.1.4Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthestandard.1.5Thisstandardmayinvolvehazardousmaterials,opera-tionsandequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C11TerminologyRelatingt...
