Application: sound insulation of apartments, offices, private houses, country houses, fitness clubs, conference rooms, cafes, restaurants. Sound insulation of walls, floor, ceiling from air noise on the concrete, brick, wooden foundation, as well as on the building frame. Minimal loss of useful area, high degree of insulation, additional waterproofing and readiness for finishing with any finishing material. Technology readiness, quick and easy installation, readiness for finishing. "RPG Comfort 22" is produced on the basis of extruded polystyrene with reinforcing coating on one side. An additional layer of sound insulation softboard layer provides for protection from airborne noise. Sound insulation index to the foundation +20 dB.