Installation of BreatherQuilt for pitched roof applications and additional insulation products should be in accordance with the manufacturer's certificate, fixing instructions and current good building practice. Start at the bottom of the roof by rolling BreatherQuilt across the rafters and staple in to place. Tape a line of YBS double sided tape along the top edge of the material. Thermal insulation in a 40mm thin, flexible, multi-layer breathable membrane. Properties Length: 10mWidth: 1200mmRoll size: 12m2Thickness: 40mmWeight: 8.5kg / 700gsmThermal performance:Core: 0.117²K/WCore 1x airspace: 0.162²K/WEmission coefficients of surfaces: 0.05Tensile strength: 132kPaFire rating: Euro class E