Fabric-based heavy duty flame retardant 610gsm sheeting with 8mm Keder to suit installation into UNI roof sheet tracking, three years anti-yellowing / anti-mildew capability and allowing high levels of light to penetrate the roofing structure. FR BS 7837 TEST 5438/B2 FR-DIN 4102, B1-PASS BN EN 13501-1 B,S2,D1 Standard widths ~ 2.07m / 2.57m / 3.07m Made to measure gable end sheeting also available.