Knauf acoustic insulation mineral wool
Part used roll (I have used approx 4 m x 600 mm). Knauf Earthwool acoustic rock wool, this is the 2 x 600 mm roll, 25 mm thickness but doubled up so could be used at 50 mm thickness. The roll is pre-cut into 2x 600 mm width strips. Cost £45 from builders merchant, and as I haven't used much I'm looking for close to the original price. It is stored in a garage in the original wrap. Collect only. Read More