Designation:C1570−03(Reapproved2016)StandardTestMethodforWindResistanceofConcreteandClayRoofTiles(AirPermeabilityMethod)1ThisstandardisissuedunderthefixeddesignationC1570;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Theairpermeabilityoftileroofingsystemsisacriticalfactorindeterminingthewindresistanceoftileroofingasappliedtoaroof.ThisStandarddescribesaprocedureformeasuringtheairpermeabilityofclayandconcretetileandslateroofsystemswhenappliedtoasmallsectionofroofdeckinaccordancewiththemanufacturer’sinstructions.1.2Thistestproceduremeasurestheairpermeabilityofalaidarrayofunsealedclayorconcreterooftilesorslates.Thetilesorslatesshallhaveathicknessbetween1⁄8-in.(3-mm)and2-in.(51-mm).1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C43TerminologyofStructuralClayProducts(Withdrawn2009)3C1167SpecificationforClayRoofTilesC1492SpecificationforConcreteRoofTile2.2SBCCIStandard:SBCCISSDT11,SBCCITestStandardforDeterminingWindResistanceofConcreteorClayRoofTilesNOTE1—ThisstandardisbasedontheInternationalCodeCouncil’sICC/SBCCISSTD11andworkderivedfromthetileindustry’stestingprogramscompletedintheRedlandWindTunnelintheUK.2.3ASCEStandard:ASCE7,MinimumDesignLoadsforBuildingsandOtherStructures43.Terminology3.1Definitions—FordefinitionsoftermsusedinthistestmethodrefertoTerminologyC43,andSpecificationsC1167andC1492.4.PrincipleoftheTestMethod4.1Airpressurei...
