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The Isover Cavity Wall Slab 36 pack of 12 is a high-performing insulation solution, designed for cavity wall applications. Each slab measures 1.2m x 455 x 100mm, perfectly sized for easy installation. This product is composed of resilient and water-repellent glass mineral wool, providing effective thermal insulation and preventing heat loss. Its ideal for both new build and refurbishment projects. The slabs are non-combustible, offering extra peace of mind in terms of fire safety.