Strong and durable, Extrablock flame retardant shade fabric offers maximum fire retardancy protection in 22 designer colors. Because of the unique knit construction, fabrication is easy and the fabric holds its shape longer after installation. Meets CSFM Title 19, NFPA 701, and ASTM E84 FR Certification. Offered with a 10-year warranty. Recommended for lightweight tension structures, canopies and shade covers.