Rockwool Thermal Cavity Batt 1200 X 455 X 100Mm Pk6 3.28M2

A full fill, mineral wool insulation providing robust fire-resistant, thermal insulation for cavities in masonry walls. Ideal for residential extensions and renovations, it's easy to install without gaps and won't slump or sag in the cavity over time. It's also water repellent and vapour permeable, allowing material to breathe without holding moisture, rotting or growing mould.