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Basic Wall Soundproofing System

When it comes to soundproofing a separating wall to minimise TV noise and talking noise leaking through the system to use is very simple and relatively thin.  This system is designed to upgrade the sound insulation properties of party and separating walls in all types of domestic properties.

The system we have developed below is easy to fit with little DIY experience and is simply glued to your existing wall.  The system uses a layer of M20 Soundproofing Mat and two layers of 12.5mm Acoustic Plasterboard and has a total thickness of 45mm.

Firstly you need to prepare the wall you will be applying the soundproofing system to.  The means removing any wallpaper and ensuring the wall is clean and dry.  It is recommended that you remove any skirting you have on the wall.  If you do this carefully you should be able to re-use this when you have completed the soundproofing.  If you have sockets or light switches we would recommend you arrange for an approved electrician to isolate these for you while you are completing the work.

Once the wall is prepared you can glue the layer of M20 Soundproofing Mat straight onto your existing plaster or plasterboard with our Advanced Acoustics Contact Adhesive.  When fixing the M20 Soundproofing Mat ensure you leave no gaps between the panels and don’t leave a gap around the perimeter of the wall.

Once you have completely covered the wall with the M20 Soundproofing Mat you can then install your first layer of 12.5mm Acoustic Plasterboard with the same Contact Adhesive.  When installing the Acoustic Plasterboard ensure you leave a 5mm gap all the way around the perimeter of the wall, this gap will be sealed with Acoustic Sealant at a later point.  When butting boards up to each other ensure there are no gaps.  Where possible try not to overlap any joints.  When you have glued the first layer of Acoustic Plasterboard to the M20 Soundproofing Mat you can now seal the gap with Acoustic Sealant.  Once you have completed this you can now install the second layer of Acoustic Plasterboard.  Again you need to leave a 5mm gap all the way around the perimeter of the wall.  If possible it is best to install this layer of Acoustic Plasterboard perpendicular to the first layer.  Once you have installed the second layer of 12.5mm Acoustic Plasterboard you can then seal the perimeter of the wall with the Acoustic Sealant.

The wall is now ready to plastered or tape and jointed ready for wallpaper or painting and replacement of the skirting.

Below we have worked out the quantities you would need to cover your area.  We would recommend that you add a 5% allowance for wastage and offcuts.  The information contained in the box below is to be used as a guide only.  This system will help reduce normal noise levels that shouldn’t normally be heard such as talking, TV and radio sound.  Loud music and bass noise will always be audible although its intensity will be reduced.  For a more efficient form a noise control see our Studio Wall System.


Square Meters M20 Soundproofing Mat 12.5mm Acoustic Plasterboard Acoustic Sealant Contact Adhesive
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