Rockwool is produced by means of a patented technology stones of the type diabase are melted and transformed into fibers. Binder is added to the fibers and they are shaped into wool. In the further production process the stone wool is pressed, shaped and cut according to exactly determined specifications. Salient features of Rockwool: Fire Resistant, Heat insulating, Non-combustible, Moisture and water repellent. Sound-absorbing.