Kingspan Kooltherm K108 Cavity Board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls. Thermal conductivity - 0.018 W/m.K Facings - Composite foil Core - Premium performance lower-lambda rigid thermoset phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). Board size - 1200mm x 450mm