You may be reading this page having already done some research on how to reduce noise. Maybe you’ve read an article or two suggesting things you can try in order to soundproof your room.

The truth is most of the articles you’ll read online about how to sound proof a room are not written by experts. Many of the techniques they discuss may improve matters slightly but they fail to respect the laws of physics. For example, making use of an old mattress to sound proof your room is a nice idea but it will do virtually nothing to reduce noise!
What I am going to explain here is a proven method that has been used to reduce noise in thousands of projects. It may not be as fast, simple or cheap a method as you would like it to be but there is one important factor:
IT WORKS!
That’s right – all the sound proofing advice you will get from us is based on proven technology and represents maximum noise reduction for minimum cost.
One important thing to consider is that the existing structure of your building will affect how much noise reduction you achieve and the exact method of sound proofing. For the purposes of this short article we will look at the most common type of partition wall in the UK – a solid brick or block wall.
Let’s assume we have a semi-detached or terraced house with noisy neighbours next door and we want to reduce the noise. Their TV is on full blast and they stomp around on their laminate floors day and night. We just want to relax in our living room and get some sleep without being disturbed. We’ve tried discussing it with them and got nowhere so now we want a solution.
OK here’s how to reduce the noise…
Mass / weight is the first thing to consider. Our brick wall is nice and heavy so surely it should be effective at reducing noise? The problem is that most solid materials are also good at transmitting vibration. Put your ear against a table top and tap it quietly with your fingernail. Loud isn’t it? So of course the same thing is happening with our partition wall.
The answer is to introduce a cavity – an airgap that the sound has to jump across. To do this we place timber battens vertically onto the existing wall and resilient bars running horizontally. Resilient bars are slightly springy so they transmit far less vibration than a solid material. We then fix acoustic plasterboard onto the resilient bar with suitable plasterboard screws. This introduces more mass into our structure as well as forming our cavity.
The cavity needs to be at least 50mm deep and should be filled with 50mm Rockwool RWA45 (an acoustic mineral wool product) which helps absorb more of the sound as it bounces around inside the wall.
Once the first layer of plasterboard is screwed on we seal ALL of the joins with flexible acoustic sealant. Our efforts are only as good as the weakest link in the chain so every tiny gap must be filled to reduce noise.

Next we add a second layer of acoustic plasterboard with Green Glue on the back. This creates a Plasterboard-Green Glue-Plasterboard sandwich which is simply the most effective material you can use to block noise. This layer must also be screwed through into the first. Green Glue is sticky but not actually a glue – the screws provide essential compression which allows the Green Glue to do its job.
Finally we seal our edge joins on this top layer with sealant and call a plasterer in to finish the new wall ready for decorating.
So there you have it. THE most effective method of reducing noise through a partition wall and it turns out that the majority of the materials used are very common in normal construction and familiar to your local builder. The secret lies in the order they are applied, the strict method of installing them and the Green Glue which amplifies the performance you achieve.
All these materials can be purchased right here at Green Glue Shop and depending on the size of your wall can cost less than £45 per square metre including delivery!
Need to ask us a question? Contact us now for a swift and friendly response from one of our experts.
We are ready and waiting to help you to reduce noise.