ROCKWOOL® Cavity

ROCKWOOL® Cavity insulation is a rigid full-fill insulation solution for masonry cavity wall construction, suitable for use in new builds or extensions. Lightweight and easy to handle, the batts are simple to install and provide a close fit against brick and blockwork, adapting to imperfections in the cavity wall. ROCKWOOL® Cavity wall insulation is available in a range of thicknesses.

• BBA certified for all exposure zones


• Outstanding thermal and fire insulation


• Does not require TCBs


• Prevents Water transmission from the outer to the inner leaf


• Non-combustible (Euroclass A1)


• Superior fit against blockwork


• No sagging or slumping