Acoustic Flooring comes in many forms, however they are all designed to reduce noise transmission between levels.
There are basically 2 types of acoustic flooring systems available:
Acoustic Floor Overlay Boards
These Boards are designed to be laid over the top of Concrete or timber floors to reduce noise transmission, you need to be careful in choosing your acoustic floor depending on the problem you have. As the performance of each board will change depending on what structure you are using it on.
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In general placing an acoustic floor onto a concrete floor structure will only reduce Impact Noise. Their mass is insignificant when compared to the original structure. A rule of thumb is that if you double the mass of a structure then you should improve Airborne Noise reduction by 6dB.
(To hear what this sound like click here)
Placing an acoustic floor onto a timber joisted floor structure will reduce Impact noise as well, but the Airborne noise reduction level will depend on the Mass of the Board, normally an acoustic floor of around 20kg/m2 should provide around 4-6dB Airborne Noise Reduction.
Raised Platform Floors
The idea here is to create a secondary floor void, this can be achieved in 3 different ways:
Basic Battened Floor
Here normal timber battens are fixed to the floor and then an acoustic floor board is laid loose on top.
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Acoustic Battened floor
Here a batten with a foam underside is laid loose on to the floor and then a normal chipboard is screwed to the top of the batten.
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Cradle and Batten system
Here normal timber battens are laid into plastic cradles which can also have a foam underside, the acoustic floor is then laid over the top of these battens.
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For a wide range of flooring sound insulation and materials visit our Acoustic Flooring page.