ROCKWOOL has released Cavityrock Black, a dual-density insulation board designed to mask the insulation layer with a bonded fleece facing to create a dark aesthetic in open-joint facades. Cavityrock Black offers the same thermal performance, fire resistance and moisture control of ROCKWOOL Cavityrock insulation. The fleece material on Cavityrock Black has been designed for exposure to the elements (weather, heat, UV) and is bonded to the insulation as part of the manufacturing process. As with ROCKWOOL Cavityrock, Cavityrock Black features a high-density top layer and lower density bottom layer. In a rainscreen application, the hard, outer layer acts as a resilient surface to weather exposure while the lower density layer reduces the overall weight of the board, making it easier to handle.