When you want to create a reinforced sound insulation between two rooms, you can build a light partition based on plasterboard 13 or 18 mm thick (BA 13 or BA 18) mounted on metal frame, which encloses one or more layers insulation. The thicker the plates, the greater the internal insulation layer and the more effective the insulation. To go further, it is possible to mount a partition with a double offset frame.
48 mm insulation between two 13 mm plates provides 42 dB of sound insulation. Double the plates and you get 49 dB insulation.
To increase the acoustic performance of a partition, install two 48 mm insulators between four BA 13 plates, you will get 64 dB insulation.