FiberTite sets the performance standard in roofing through the proven use of ELVALOY™ KEE. Our proprietary coating formula is the American Society for Testing and Materials (ASTM) standard for the use of ELVALOY™ KEE and forms a monolithic bond with our outstanding fabric. More than 30 years of performance demonstrates that FiberTite roofs simply do not fail. When the weather turns ugly, you can put your trust in the very best single-ply roofing system available.