Description: SBS (styrene-butadiene-styrene) thermoplastic elastomeric modified bitumen waterproof membrane is a waterproofing membrane with polyester felt,glass fiber or glass fiber polyester felt as reinforcement,finishing the upper surface with PE film,fine sand or mineral granule. APP (Atactic Polypropylene) modified bitumen membrane is made by saturating the base in bitumen, or thermoplastic elastomer (such as APP, APAO, APO), reinforced with polyester or fiberglass, finishing the upward face with polythene membrane, fine sands or mineral slates (or grains) or etc. Specification: Thickness: 3mm 4mm 5mm Width: 1m Length: 7.5m/10m or customized Base: Polyester/Fiberglass Felt Surface: PE film, Aluminum foil, Yellow sand, Mineral Particle