The wall was composed of:

• QR wall brackets & Wall Fix: to disconnect the retention wall from the existing wall and thereby break the transmission of vibration noise between the structural components.


• Wall Strips & Edge Strips: to minimize flanking transmissions and improve vibration and structural sound insulation of load-bearing walls.


• Illform (heavy mass foil) in between plasterboard plates: to add mass to the retaining wall and thus block sound transmission from the airborne noise


• PV-Panel as sound-absorbing cavity panels: to absorb the airborne noise that enters the cavity.

The retention wall is completely free-standing and can be mounted with any void. As a result of this intervention, a tangible improvement to the environment has already been established. But in order to fully comply with noise standards, there are still a number of crucial acoustical adjustments to be made in the room.