A high performance PVC-P roof waterproofing membrane with a non-woven polyester fleece-backing, designed for use as a fully adhered waterproofing covering. It comes in two variants; Narrow FF807 1.3m wide rolls are for refurbishment projects where the smaller rolls are easier to handle on a roof and the thicker fleece assists in bonding to existing substrates or acting as a separation layer over felt or asphalt roofing. Wider FF807V is for new build projects where the fleece acts to enhance the bond between the membrane and the new insulation board.
The British Board of Agrément has assessed that FF807 will last of 30 years. The membrane does not need any maintenance.