... D4869,36''X144' 15# ASTM D226,36''X144' 30# ASTM D4869,36''X72' 30# ASTM D226,36''X72' Asphalt felt #15 and ... #30 DescriptionWidthlengthWeightThicknessUsageASTM D-226 roofing felt 30#36in0.914m72ft21.95 m23.5kg1.2mmA roofing felt ... .914m 144ft43.89m 16.5kg0.6mmASTM D-4869 roofing felt 30#36in0.914m72ft21.95m13.5kg0.8mmDescription:A heavy-weight asphalt roofing ...