Kingspan Kooltherm K103 Floorboard Insulation with a fibre-free rigid thermoset phenolic core is suitable for beam, block, concrete and timber flooring. This product is ideal for both residential and industrial applications. It provides coverage of 11.52m2. Glass tissue facing Thermal conductivity 0.019 W/mK Non-deleterious material Unaffected to air infiltration Resistant to the passage of water Suitable for new build and refurbishment Green Guide Rating A+