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MostrecentUnderwritersLaboratories[ul]PDFPriceAtlasRoofingCorporationdoesnotwarrantproductperformancetoreallifehailorotherimpact conditions.ThetestingprocessincludedThermoplasticOlefin(TPO)Classimpacttest(UL).Selectinganapproximateimpactenergyofftlbsallowedcomparison betweenULPULImpactResistanceofPreparedRoofCoveringMaterialsThenationallyrecognizedtestingprotocolsperformedintheULareforproduct comparisonpurposesonlyIntheInstituteofBusinessandHomeSafety(IBHS)andtheUnderwriter’sLaboratory(UL)developedtheULclassification,anational standardforroofimpactresistancebyratingmaterialsfromClassthrough4,basedontheirresistancetothesteelballsimulationtestAvailableforSubscriptions PolymermodifiedshingleslikeMalarkey’sarerubberizedtobetterdeflectandTheULtestevaluatetheefectsofimpactsuponmaterialsinlaboratoryconditions AvailableforSubscriptionsBackpreviewUnderwriters•Patented^^compositeconstructionandintegratedpolymericbackingforexcellentperformanceMeets UL,ClassImpactResistanceTruBond®sealantstandsup•Impactresistant:ULClassratingFiberglass-basedconstructionULClassAfireresistanceULCertified tomeetASTMDConformstoCSAStandardAUL,“StandardforImpactResistanceofPreparedRoofCoveringMaterials,”providesforimpact-resistance datafortheevaluationofpreparedroofcoveringprod-uctsANSIwithSBSmodifiedasphalttomeetULClassimpactresistanceratingAddtoAlert Unfortunately,thislayerdoesn’tprotectthetopoftheshinglefromhailbruising,tears,orgranuleloss,leavinghomeownersstillstuckwiththehead-acheand expense(deductible)ofreplacingahail-pittedroofNOTE:NorthGatemustbeinstalledoveracleank(noroof-overs)toobtaintheULratingSomeinsurance carriersThispaperdescribesresultsfromULimpacttestsondiferentasphaltshingleproductsproducedbyfivediferentmanufacturersAClassratingisthetoughest ULEdStandardforImpactResistanceofPreparedRoofCoveringMaterialsN/ASubscriptionOptionthreecommontestmethods:FMRC,UL,andtheNBS IceSphereMethod.SelectinganapproximateimpactenergyofftlbsallowedcomparisonbetweenULClass3,theFMSevereHailTest,andtheNBSinchice spheretestmethodsAddtoAlertRASTMD–StandardULEdStandardforImpactResistanceofPreparedRoofCoveringMaterialsPDFContentProvider QUL–StandardTestMethodsforFireTestofRoofCoveringsItisstronglyrecommendedNorthGateAccessoryorNorthGateRidgeimpactresistantcap shinglesbeinstalledonallhipsandridgesTheULimpactteststandardisasteelballdroptesttoevaluatetheimpactresistanceofpreparedroofcoveringsUL callsforbendingflexiblematerialsoverafour-inch-diametermandreltoaidthevisualexaminationforfractures;however,bendingthetestedshinglesovera mandrelwoulddamagetheshinglesduetotheirdesign,invalidatingtheteststhreecommontestmethods:FMRC,UL,andtheNBSIceSphereMethodUL EdStandardforImpactResistanceofPreparedRoofCoveringMaterialsPDFContentProvider