PTFE Coated Fiberglass is considered one of the most durable materials in the fabric structures industry with a life expectancy of 35+ years, PTFE, or polytetrafluoroethylene, is a Teflon™-coated woven fiberglass membrane. It is an extremely strong, up to 1,000 pounds per inch. Due to low surface energy from its chemically inert coating, PTFE membrane is capable of withstanding extreme temperatures and is easy to maintain and keep clean. It is also completely immune to UV degradation. Whether it’s for an enclosed structure or a fabric building façade, PTFE-coated fiberglass membrane is a popular option as it passes the most stringent fire code compliance tests, including ASTM E-126 and is Class A fire-rated. Depending on fabric thickness required, light transmissions range from 12% to 17%. The fabric has a 10 year 100% warranty and 20 years prorated. PTFE membrane is installed beige in color but bleaches permanently white with sun exposure. Colored PTFE membrane is not available off the shelf, and requires a premium and a purchase of the entire fabric lot.