ROCKWOOL Thermal Cavity Slab 32 is a versatile stone wool slab designed for both full and partial fill thermal insulation in masonry cavity walls. Ideal for new builds, renovations, or extensions, these slabs are easy to handle and install, requiring only a simple friction fit against blockwork without the need for precise cutting. The innovative fibre structure enhances the density of air pockets within each slab, resulting in a 13% improvement in thermal performance compared to standard stone wool cavity slabs. In 2024, ROCKWOOL will update its packaging for the Trade Range product