CertainTeed's granulated, torch-applied, SBS-modified bitumen cap sheet with fire resistant additives, and highly solar reflective surfacing, Flintlastic®® GTS-FR CoolStar® is valued for robust physical properties, proven rooftop protection and decades of consistent quality, when a Class A fire rating and is required energy efficiency is desired. This 160 mil membrane is manufactured with a resilient polyester reinforcement, and surfaced with offering exceptional durability and resistance to weathering while reducing thermal heat gain, improving building comfort and reducing energy cost. Cool Roof Rating Council (CRRC) Product Identification 0668-0146. 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 t...See Moreorch roofing community, especially in northern regions. Ask any experienced roofing contractor, and they will tell you that a properly installed, high-quality torch system 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