Patent ID: 7148160
Filing Date: 2006-12-12
Classification: B32B,D04H,Y10S,Y10T

Abstract:
1. A roofing system, comprising: a composite having three layers, comprised of, a water vapor permeable, substantially liquid water impermeable, porous polymeric film covered by an outer layer and further covered by a reinforcing layer; said film comprising one of, an extrusion coating or lamination, said film comprising polyurethane, which is spot bonded to said outer layer by melt bonds without adhesive; said outer layer comprised of, abrasion resistant, polymeric nonwoven fibers, wherein the polymeric fibers are melt bonded in the outer layer without adhesive; said reinforcing layer comprised of, a tear and puncture resistant, reinforcing mesh, said mesh being bonded without adhesive by melt bonds with said film to form said composite; said composite being stapled to roof sheathing of said roofing system to comprise an abrasion resistant and rain resistant roofing membrane; and