UL Class A,B or C roof covering roofing underlayment 1 2" or 5 8" exterior gypsum board 1" Homasote Firestall® roof deck steel roof trusses @ 24" oc max. minimum 3:12 slope - Max B - Document - PDFSEARCH.IO

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	UL Class A,B or C roof covering roofing underlayment 1/2" or 5/8" exterior gypsum board 1" Homasote Firestall® roof deck steel roof trusses @ 24" oc max. minimum 3:12 slope Add to Reading List Document Date: 2008-02-24 17:12:14 Open Document File Size: 65,35 KB Share Result on Facebook

UL Class A,B or C roof covering roofing underlayment 1/2" or 5/8" exterior gypsum board 1" Homasote Firestall® roof deck steel roof trusses @ 24" oc max. minimum 3:12 slopeAdd to Reading List