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Carpet Finish Acoustic Floor System

This acoustic floor system is high mass, high performance and allows a soft carpet finish to be installed perfectly over the acoustic layers.

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Key Benefits
  • High Performance Floor Treatment
  • Acoustic treatment from above only
  • High Mass
  • Low deflection
  • Carpet installed direct to acoustic floor
  • Specialist gripper rod perimeter strips
Installation instructions

Uplift the existing floorboard / chipboard floor to expose the joists and cavity. Clear the cavity and install 100mm RWA45 Rockwool into the cavity at the bottom leaving an airgap at the top of the cavity. Friction fit the insulation tight within the cavity and infill any small gaps with insulation.


Ensure your joists are level. You can pack out the top of the joists to level them or in extreme cases strap new timbers to the existing joists to level them. Install STS Board 22mm over the joists. Install in a brick bond pattern. The STS board can be cut with a circular saw or festool with appropriate extraction. use the STS adhesive within the tongue and groove joints and the STS screws to fix down the boards to the joists. Leave a 5mm expansion gap around the perimeter of the room where the boards meet the wall and infill with an acoustic sealant.


Once the STS board is installed created a sound solid subfloor next install the Tecsound 100. Roll out the Tecsound and but joint the rolls, install tightly to the walls. If required the Tecsound can be glued down using the self adhesive version or approved adhesive such a Mapei Elastorapid vs90. Install the adhesive using a 3mm notched trowel. Again use an acoustic sealant around the perimeter of the Tecsound. Tecsound is easily cut with a straight edge and a stanley knife.


Over the Tecsound around the perimeter of the room install the Acoustilay perimeter strips. Push the expanding foam side of the strip tight to wall so it compresses. Screw the strip in place through the Tecsound into the subfloor. Do this around the entire perimeter of the room. This strip will then receive your gripper rod, the height of the gripper rod will match perfectly with the heigh of the dB Acoustic Underlay once installed.


Install you dB Acoustic Underlay tightly up to the perimeter strips. Install  in a brick bond pattern. Cut the matting using a straight edge and a stanley knife, scoring the matting repeatedly to get a clean cut. Bond down the matting using Mapei Elastrapid VS90. Use a 3mm notched trowel to apply the adhesive. Your carpet can now be installed over the matting onto the flush gripper rods.

Carpet Finish Acoustic Floor System

Carpet Finish Acoustic Floor System

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