SuperFOIL SF40 FR is SuperFOIL's popular SF40 multifoil with fire rated qualities to make it a safer product. 25mm thicker than SF19 FR, this fire resistant multifoil offers great thermal properties whilst protecting from the growth, heat and spread of flames. For retro fitting and for new builds, SuperFOIL SF40 FR retains the reflective radiant barrier properties of SF40 so that the building will stay cooler in the summer and warmer in the winter. It can also be paired with a range of other insulation products to increase its thermal performance and to in turn reduce heating bills. SuperFOIL SF40 FR is also environmentally friendly as it's manufactured from 40% recycled materials. This BBA-tested fire resistant multifoil has a Class 0 Fire Propagation certification and a Class 1 Surface Spread of Flame certification. This means that a fire will not grow quickly or spread easily when it comes into contact with SF40 FR and it also won't ignite easily either. Please note, a Class 0 fire rating can be achieved when using this product in conjunction with the SuperFOIL Superior Foil Tape. SuperFOIL SF40 FR Performance Roof: 3.58 R ValueWall: 2.53 R ValueFloor: 5.69 R ValueClass 0 Fire Propagation certificationClass 1 Surface Spread of Flame certification SuperFOIL SF40 FR Dimensions Length: 10mWidth: 1.5mCoverage: 15m2Thickness: 65mmWeight: 17.5kg/roll