Knauf Earthwool Building Slab RS45 are a range of semi-rigid and rigid slabs, manufactured from a resilient, non-combustible rock mineral wool. They are supplied un-faced as standard but can be manufactured with a foil or tissue face to special order but may be subject to minimum order quantities. They are available in a range of densities from 33 kg/m3 to 140 kg/m3. Earthwool Building Slabs can be used in a wide range of thermal and acoustic applications within buildings. Earthwool Building Slabs represent no known threat to the environment and have zero Ozone Depletion Potential and zero Global Warming Potential. This roll is available in the following thicknesses: 25mm 30mm 40mm 50mm 60mm 75mm 100mm   Contact us today.