The 150mm Knauf Earthwool Loft Roll 44 Insulation Combi-Cut provides outstanding thermal and acoustic insulation for your loft. This high-performance, non-combustible glass mineral wool roll is easy to install, with a flexible design that allows for both between joists and over joists application. Covering an area of 9.18m2 per roll, this insulation product is designed to reduce heat loss, improve energy efficiency and lower carbon footprint in homes or commercial properties.