150mm Knauf DriTherm Cavity Wall Insulation Slab 37 (4.37m2/Pack)

Full-fill glass mineral wool insulation slab, measuring 150mm in thickness, for use in masonry cavity walls.Produced with a high recycled glass content and ECOSE® Technology, it delivers strong thermal insulation while allowing vapour to pass through, supporting a healthier building fabric.A thermal conductivity of 0.037 W/mK ensures effective energy efficiency, reducing heat loss and supporting compliance with modern Building Regulations.With a Euroclass A1 non-combustible rating and full BBA certification for every UK exposure zone, it also delivers confidence in fire protection, durability, and performance over time.At 150mm thick, the largest slab in the DriTherm 37 range, it is designed for wider cavity walls in new build housing. This depth provides the highest level of thermal performance, helping developments meet stricter Building Regulation requirements while allowing full-fill installation in a single layer for easier, faster fitting.