The NVFB-WB from Tenmat is a highly compressible, A1 rated stone wool cavity barrier designed for demanding external wall systems. Tested to BS EN 1366-4, it features a specific fibre orientation that enables effective sealing even where irregular outer surfaces are encountered, such as behind lapped cladding. In the event of a fire, the NVFB-WB delivers non-ventilated, full-fill fire protection to restrict fire spread in external wall cavities. It offers up to 120 minutes of integrity and insulation, and is suitable for a variety of applications including timber SIPS panels, masonry with DPC membranes, and both lapped and... The NVFB-WB from Tenmat is a highly compressible, A1 rated stone wool cavity barrier designed for demanding external wall systems. Tested to BS EN 1366-4, it features a specific fibre orientation that enables effective sealing even where irregular outer surfaces are encountered, such as behind lapped cladding. In the event of a fire, the NVFB-WB delivers non-ventilated, full-fill fire protection to restrict fire spread in external wall cavities. It offers up to 120 minutes of integrity and insulation, and is suitable for a variety of applications including timber SIPS panels, masonry with DPC membranes, and both lapped and flat weatherboard cladding. Euroclass A1 performance Fire rating: A1 Conforms to: BS EN 1366-4 Quick and easy installation Effective fire resistance properties Data Sheet. Show more information
