The Xtratherm Cavity Wall Board XT/CW is a high-performance insulation solution designed to provide superior thermal resistance in cavity wall applications. Measuring 1200 x 450 x 50mm, this robust panel is made from PIR (polyisocyanurate) foam, offering excellent insulation properties that can greatly reduce heat loss and improve energy efficiency in your building project. With its easy-to-install design and high-quality construction, the Xtratherm XT/CW ensures an optimum balance of performance, durability, and value for professional builders and DIY enthusiasts alike.
Material | Rigid PIR (polyisocyanurate) foam |
Type | Rigid board |
R-value | 2.25 m2·K/W for 50mm thickness |
Thickness | 50mm |
Dimensions | 1200mm x 450mm |
Coverage area per package | Each board covers approximately 0.54 square meters |
Quantity | Sold individually |
Application | Cavity walls |
Installation method | Interlocking tongue and grooved edges for secure and tight installation. |
Fire rating | Class 1 surface spread of flame to BS 476-7. |
Moisture resistance | Resistant to the passage of water vapor. |
Sound absorption rating | Not specified. |
Environmental certifications | Manufactured under ISO 9001 Quality Systems, ISO 14001 Environmental Management Systems. |
Compression resistance | Not specified. |
Vapor transmission | Low Vapor Transmission, less than 1 ng/(m·s·Pa) at declared thickness. |
Sustainability features | Zero Ozone Depletion Potential (ODP), Low Global Warming Potential (GWP). |