AsphaltRoofingFeltisprocessedbymakingthepaperbasesoakedinlow-softeningpetroleumasphalt,thencoveredwithhigh-softeningpetroleumasphalt,andlastcoatedwithisolatingmaterialsuchastalcpower.Thisproductisspecializedinwaterproofmaterials,packing,bulidingdampproofing.AsphaltFeltRollSize:1x20m,1mx16m,1mx19m,orascustomer’srequestment.RoofingFeltPaperTensileStrength:0.05-0.10MpaAsphaltfeltBreakingElongation:240-370NWeightofperrool:25lb,30lb,40lb,45lb,50lb,55lb,60lb,70lbandwecandoacordingtoyourrequest,thelengthcanalsobedecidedbyyou,.)