SOPRALAST® 50 TV ALU is an SBS-modified bitumen cap ply for use in approved multi-ply membrane and flashing assemblies. SOPRALAST 50 TV ALU is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a high strength glass scrim. The topside is surfaced with an aluminum foil and underside is surfaced with polyolefin burn-off film to optimize heat welding.
Prior to installation, unroll SOPRALAST 50 TV ALU onto the roof surface and allow to relax. Position SOPRALAST 50 TV ALU in desired position and back roll the product. SOPRALAST 50 TV ALU is then heat welded to approved substrates. Refer to the SOPREMA® SBS Roofing Manual for additional application guidelines.