85mm Knauf DriTherm Cavity Wall Insulation Slab 32 (2.73m2/Pack)

Full-fill glass mineral wool insulation slab, measuring 85mm in thickness, for use in masonry cavity walls.Manufactured with a high recycled glass content and ECOSE® Technology, it delivers advanced thermal insulation while remaining vapour permeable, helping the wall construction to breathe.With a thermal conductivity of 0.032 W/mK, it provides superior energy efficiency, enabling lower U-values to be achieved at reduced insulation thicknesses.Rated Euroclass A1 non-combustible and fully BBA certified for all UK exposure zones, it ensures proven fire safety, durability, and long-term reliability.At 85mm thick, the slab is suited to cavity widths that fall between traditional and modern standards, making it a practical choice for extensions, refurbishments, and new builds where non-standard dimensions are specified.