RSA Cavity Wall Slab Insulation is a high-performance glass mineral wool product designed specifically for insulating external cavity walls. Engineered for excellent thermal and acoustic performance, these rigid slabs are easy to install and provide a snug, friction-fit between wall ties.

Key Features:

• Manufactured from non-combustible glass mineral wool

• Excellent thermal conductivity and sound absorption

• Water-repellent and vapour-permeable for cavity wall use

• Lightweight, easy to cut, and friction-fit for fast installation

• BBA certified and compliant with UK Building Regulations

Ideal for new builds and refurbishment projects, URSA cavity wall slabs offer reliable, energy-efficient performance with long-term durability.