Designation:F2873−13StandardPracticefortheInstallationofSelf-LevelingUnderlaymentandthePreparationofSurfacetoReceiveResilientFlooring1ThisstandardisissuedunderthefixeddesignationF2873;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstheinstallationofself-levelingunderlayments,whichmayincludeaprimingsystem,oversolidwood,woodstructuralpanelsubfloors,overconcrete,andovercertainsolidlybondedexistingflooringsystemssuchasepoxyfloors,ceramicandnaturalstonetiles,terrazzo,aswellasproperlypreparednonwater-solubleadhesiveresiduesasrecommendedbytheunderlaymentmanufacturer.Thispracticealsocoversthepreparationoftheself-levelingunderlayment’ssurfacepriortotheinstallationofresilientflooring.1.2Thispracticepointsoutthefactorsthatarerequiredtobecontrolledwhileinstallingaself-levelingunderlaymenttobeusedasasubstrateforresilientflooring.1.3Thispracticedoesnotcoverthestructuraladequacyofthesubfloor.Thestructuralintegrityofassembliesisgovernedbylocalbuildingcodesandmaybesupersededbytheresilientflooringmanufacturer’srequirements.1.4Thispracticedoesnotsupersedetheself-levelingun-derlaymentmanufacturer’s,adhesivemanufacturer’sorresil-ientflooringmanufacturer’swritteninstructions.Consulttheindividualmanufacturerforspecificrecommendations.1.5Manyself-levelingunderlaymentsarenotsuitableforuseonconcreteslabsongradeorbelowduetopotentialmoistureproblemsarisingfrommoistureintrusion.Thismayoccurunlessanadequatevaporretarderorvaporbarrierispresentdirectlybeneaththeconcreteslaboraneffectivemoistureremediationsystemhasbeeninstalledbeneaththesurfaceoftheself-levelingunderlayment.Consultthemanu-factureroftheself-levelingunderlaymentandflooringsystemforspecificrecommendations.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesa...
