AESSE 2200 is a soundproofing mat made up of a very flexible bituminous membrane (1,1 mm thickness) coupled with a bonded polyester fibre layer (30/50 kg/ m3 density, 5 mm thickness). The production technique during the coupling phase gives to AESSE 2200 excellent characteristics of mechanical resistance, it is walkable, waterproof and has good absorption capacity to impacts. AESSE 2200 is used as an impact sound noise separating product between the screed and the lightweight screed for fixtures levelling. Easy to use, AESSE 2200 has an adhesive overlapping lateral selvedge so to avoid that during laying the imperfections can compromise, even slightly, the final result. The bituminous membrane allows the application whenever the use of self-levelling screeds is planned.