Opti Wall 140 dBoard Acoustic System

• High Performance Acoustic Wall Lining
• Deep fail safe resilient bars
• Independent lining with complete decoupling from the existing wall
• High Mass dBoard acoustic wall board
• Direct fix to existing wall
• 140mm depth from existing wall

From the existing wall leave an airgap of at least 25mm. Then install your independent free standing stud wall, this can be timber of lightweight metal track and stud.  Ensure the newly formed cavity is clear with no fixings.

Install the appropriate depth of RWA45 Rockwool Insulation within the stud. E.G. If the stud is  50mm then use 50mm insulation. The deeper the stud and overall cavity the better the acoustic performance will be at low frequency.

To the new stud install Maxi resilient bars. The bars can be installed at 600 centres horizontally. Fix the dBoard to the Maxi resilient bars and in a brick bond pattern. Use Maxi HP Screws 35mm to fix the dBoard to the resilient bars. Seal the perimeter of the dBoard around the edges where the board meets the wall, leave a 5mm expansion gap and infill with acoustic sealant. Over lay the dBoard with 15mm Siniat Fireline plasterboard. Seal the perimeter with acoustic sealant. The wall is then ready to be finished, with either wet plaster or tape a joint finish.