SOPRALENE® Flam 180 is an SBS-modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies. SOPRALENE Flam 180 is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a tough, dimensionally stable non-woven polyester mat. The topside and underside are surfaced with polyolefin burn-off film to optimize heat welding.
Prior to installation, unroll SOPRALENE Flam 180 onto the roof surface and allow to relax. Position SOPRALENE Flam 180 in desired position and back roll the product. SOPRALENE Flam 180 is then heat welded to approved substrates. Subsequent approved inter-ply or cap ply membranes are applied to SOPRALENE Flam 180 via heat welding. Refer to the SOPREMA® SBS Roofing Manual for additional application guidelines.