Ensure superior cavity wall insulation with this 5-piece insulated cavity closer set, ideal for window and door frames, preventing cold bridging. Pack total coverage is 6m. Each unit measures 1.2m and fits cavity widths from 50 - 100mm . Made with EPS core and UPVC frame, this cavity wall closer prevents cold bridging and boosts energy efficiency. Perfect for airtight, thermally insulated cavity installations in timber, steel, or masonry builds. Meets UK building regulations and serves as a fire-rated cavity barrier for new builds, extensions, and refurbishments. Easy to handle and install. Novecrafto Insulated Cavity Closer 1.2m with Adjustable EPS Pack of 5 in Silver