CertainTeed's granulated, torch-applied, SBS-modified bitumen cap sheet with fire resistant additives, Flintlastic® GTS-FR is valued for robust physical properties, proven rooftop protection and decades of consistent quality, when a Class A fire rating is required. This 160-mill membrane is manufactured with a resilient polyester reinforcement, offering exceptional durability and resistance to weathering. GTS-FR is available in White as well as CoolStar® highly solar-reflective surfacing. Torch-down roofing technology has only strengthened since first coming on the scene in the 1970’s. CertainTeed modifies roofing asphalt with rubberizing styrene butadiene styrene (SBS) polymers to enhance product resilience and pliability, especially in cold temperatures. These SBS modified bitumen products are staples of the torch roofing community, especially in northern regions. Ask any experienced roofing contractor, and they will tell you that a properly installed, high-quality torch syste...See Morem creates a multi-layered barrier that will protect a building for decades to come. Reach out to your local CertainTeed Territory Manager to request a sample and demonstration of Flintlastic® GTS-FR. See Less