Knauf DriTherm Cavity Slab
Crown DriTherm Cavity Slabs are semi-rigid or rigid slabs of non-combustible glass mineral wool with a water-repellent additive.
They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs. Crown DriTherm Cavity Slabs have a special additive to make the product water repellent and are produced in three grades.