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How to Soundproof Concrete Floors

How to Soundproof Concrete Floors

Soundproofing a concrete floor

How to soundproof a concrete floor to ensure sound does not transfer between this type of flooring. Most buildings with a concrete sub-floor have sufficient mass and density to block the transfer of airborne sound. Conversation and TV noise would not normally pass between the floors of buildings that use concrete as the sub-floor. The main noise issue that you would expect for concrete flooring is impact sound. This type of sound would include footfall and movement of objects across the floor.

The best way to soundproof concrete floors to reduce impact sound is to use a resilient layer over the concrete flooring. The soundproof layer is installed over the concrete and below the floor finish. The type of soundproofing you use to block impact sound through the concrete is made from materials that absorb impact sound before it transmits into the concrete. There are several products available for soundproofing concrete floors. Which you chose is often determined by factors including restrictions on floor height and what the desired floor finish will be. Noisestop Systems have a range of concrete floor soundproofing solutions suitable for use with concrete and precast concrete floors.

Solutions for soundproofing concrete floors

Noisestop Systems provide a range of flooring products for use over concrete flooring. The two main floor soundproofing solutions for concrete flooring are soundproof membranes and floating floors.

Acoustic membranes for soundproofing concrete floors

Acoustic membranes are typically rolls or sheets of acoustic matting bonded to the sub-floor, this type of solution ranges in thickness from as little as 3mm. Thicker Soundproof underlays are available, but they often incorporate airborne noise reduction. A floor constructed from concrete would not usually require additional insulation to reduce airborne noise.

Noisestop Mat acoustic membrane over concrete floors

Soundproof a concrete floor with a floating floor

Floating floors consist of membranes bonded to the back of interlocking flooring. Use the Concretedeck overlay boards to stop impact sound before it transmits into the concrete floor. Install this type of floor without directly fixing the concrete subfloor to avoid sound transfer. Concretedeck boards are suitable for new build, conversion and refurbishments and will meet Building Regulation requirements. Reduce impact sound transmission through concrete floors, this system does not need the additional protection of a moisture barrier (VCL) vapour control layer because the Isopoli will not absorb the moisture from a virgin screed.

Concretedeck floating floor overlay system

Reduce flanking sound through concrete flooring by isolating the walls 

Most buildings constructed using concrete flooring typically have steel and concrete support structures. This type of construction can cause sound to transfer if there is a direct connection between the floor and walls surfaces. It is essential to isolate the flooring from the walls to reduce the possibility of flanking sound.

The flanking sound transfer associated with the concrete building travels across the floor and into a wall. The sound can then transfer to other parts of the building. The best way of reducing flanking sound is to isolate the flooring from the walls. Ensure the flooring does not come into direct contact with the wall that forms the room’s perimeter. Using Isolation Tape around the room’s perimeter will reduce the possibility of impact sound transferring into the wall.

Isolate walls and floors with Noisestop Isolation Tape

Noisestop Systems range of floor soundproofing solutions

We provide a full range of flooring solutions for a variety of floor types.

Need help with your soundproofing call 01423 339163, alternatively send us your enquiry. You can upload any relevant documents such as plans, drawings and pictures.


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