Knauf 37 Standard Earthwool Dritherm Cavity Slab

Earthwool Dritherm Cavity Slabs are semi-rigid or rigid slabs made from non-combustible, water-repellent glass mineral wool. They are manufactured to a width of 455mm to align with standard vertical wall tie spacings, ensuring a secure joint with adjacent slabs. The 50mm and 65mm Dritherm 37 Standard slabs have lambda values of 0.035 W/mK and 0.036 W/mK, respectively. This higher specification enables the thinner 50mm and 65mm slabs to provide the strength typically associated with thicker materials, simplifying the installation process. Designed to fully fill the cavity, Earthwool Dritherm Cavity Slabs pose no known environmental risks, with zero Ozone Depletion Potential and zero Global Warming Potential.