Asphalt Roofing Felt, 1)Size: 1m x 20m, etc. ... 18LB - 83LB, etc 3)Package: export packing by roll. Asphalt Roofing FeltSpecifications:1)This product is specialized in waterproof materials ... base soaked in low softening petroleum asphalt, then covered with high-softening petroleum asphalt, and last coated with isolating materials ... 80LB 83LB etc. 5)Package: export packing by roll. Asphalt Roofing Felt