ROCKWOOL DuctWrap Foil-Faced Stone Wool InsulationROCKWOOL DuctWrap is a flexible stone wool insulation roll faced with reinforced aluminium foil. It is designed primarily for thermal insulation of circular ductwork and water storage tanks, and can also contribute acoustic absorption in building-services applications.Product Details Manufacturer: ROCKWOOL Material: Stone wool with reinforced aluminium foil facing Width: 1000mm Thickness options: 25mm, 40mm and 50mm Roll length: 25mm x 5m; 40mm x 4m; 50mm x 5m Declared thermal conductivity: 0.034 W/(m·K) at 10°C Thermal conductivity: 0.040 W/(m·K) at 50°C Reaction to fire: Euroclass A1 to EN 13501-1:2018 Product standard: EN 14303:2009+A1:2013 Suitable for service temperatures up to 230°C Maximum recommended outer foil-face temperature: 80°C to maintain facing bond strength Suitable for ventilation ductwork and water storage tanks Can be specified in accordance with BS 5422:2023 where appropriate for the application ApplicationsUse DuctWrap for circular HVAC ductwork, warm-air and extract ducts, and water storage tanks where flexible foil-faced stone wool insulation is required. For square and rectangular ductwork, ROCKWOOL DuctSlab is the purpose-designed product.InstallationFit the insulation closely to the substrate and seal foil-facing joints as required by the system design. Insulation thickness should be selected according to service temperature, ambient conditions and the required thermal or condensation-control performance.
