Schlüter-BEKOTEC-BTS, designed for acoustic comfort, is a 5 mm thick sound insulation layer of closed cell polyethylene foam suitable for installation below the Schlüter-BEKOTEC-EN-P, Schlüter-BEKOTEC-EN-PF and Schlüter-BEKOTEC-EN 23 F studded screed panels. The material can be used if the required construction height is not sufficient for a thick insulation layer of polystyrene or mineral fibre. The maximum floor load must be limited to 2 kN/m².