50mm Rockwool RWA45 Acoustic Sound Insulation Slab is an acoustic insulation product that can be used in a variety of applications due to its versatile nature. It has been certified A1 non-combustible according to BS EN 13501-1, which guarantees the best possible fire performance. The slabs of 50mm Rockwool RWA45 have a density 45kg/m3, making them perfect for use in separating floors or walls. These 50mm Rockwool insulation slabs have been resin-bonded and cut to 1200mm x 600mm, which means they will fit snugly between standard stud partitions or floor joists. Due to their acoustic properties, 50mm RWA45 slabs are sometimes called Sound slabs. This is the most popular acoustic insulation solution on the market.