How to soundproof a wall?
How to soundproof a wall from noisy neighbours
In the United Kingdom, brick walls frequently act as a partition between connected and semi-detached residences. When you have a shared wall with your neighbor, known as a "party wall," noise can easily pass through it. If the wall lacks proper construction, you may be subjected to unwanted sounds from the adjacent side.
To enhance the soundproofing of your brick wall, consider separating it from your neighbor's wall to create a gap, and then use profesional soundproofing materials to absorb sound energy and vibrations.
When considering ways to soundproof a wall, various methods are available, depending on the noise level and the type of wall (solid or stud). Here are some effective techniques to assist you in minimizing noise.
1. Identify where the noise is coming from
Press your ear against different sections of the wall to identify the areas where most noise is coming through (for instance, alcoves walls are usually much thinner than chimney breasts) this will help you identify the areas that need sound proofing.
2. Add mass to the wall
One of the simplest ways to reduce noise through a brick wall is to add heavy/dense materials to your wall.
Installing soundproofing layers such as
SoundBoard 4 or
FlexiSound 5 with a layer of
acoustic plasterboard on top can significantly reduce unwanted noise.
(Please note this solution is not effective for low bass frequencies)
SoundBoard 4 Test data
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SoundBoard 4
30mm Wall soundproofing board
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FlexiSound 5
5mm Self adhesive acoustic membrane
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Acoustic Plasterboard
High Density 15mm acoustic plasterboard
2. Add a new wall in front of the existing wall
Adding a new fake wall is the most effective way to soundproof a wall although you will lose more space. Soundproofing clips such as the ReductoClip can be fitted directly to the wall if space is a premium, or for higher performance they should be fitted to a new independant stud wall. These clips will reduce the amount of sound energy and vibration that can be transmitted through the wall. You should then add further layers of high density materials.
(These systems offer a higher performance than just adding mass directly to the wall and work better for lower bass frequencies)
ReductoClip Direct to wall Test Data
ReductoClip on a independant stud wall Test Data
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ReductoClip Direct to Wall
ProSound ReductoClip Direct to Wall Kit -60mm
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ReductoClip Independant Wall
ProSound ReductoClip Independent Wall Kit -120mm
3. Use acoustic insulation in any cavities
Enhancing the soundproofing of walls is possible by integrating
soundproofing insulation in cavities or sealed areas. Acoustic grade mineral wool slabs are designed to optimize sound absorption within the cavity between the new wall, consequently boosting acoustic performance and reducing reverberation.
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Soundproof Insulation For Cavities
Soundproof insulation 60kg m³ Density 25mm, 50mm or 100mm
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Acoustic Mineral Wool
Acoustic Mineral Wool – 60kg m³ Density 25mm - 50mm or 100mm thick
4. Seal all gaps and holes
Minor gaps and holes can allow a significant amount of noise to pass through, which is why it's important to apply
acoustic sealant along the perimeter of the wall and around small openings for electrical wiring and pipework. Enhance the soundproofing of electrical sockets by using
acoustic putty pads.
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Acoustic Sealant 900ml
Acoustic Sealant is a high strength, permanently flexible sealant
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Acoustic Socket Putty Pads
Acoustic Putty Pads for Single or Double sockets
5. Additional tips
Address any flanking paths
Sound may also move through alternative paths like ceilings, floors, and side walls. Place your ear against these surfaces and compare the noise levels with the wall. If the noise is just as loud as through the wall, you may be dealing with a flanking noise issue.
Do not use acoustic foam panels for soundproofing
Acoustic panels
DO NOT BLOCK NOISE they only help with sound reverberation and echo within a room.
Helpful wall soundproofing guide
Author
Ian Baker, the Managing Director of The Soundproofing Store, is a prominent figure in the soundproofing sector. His distinguished history of award-winning achievements and development of trademarked, superior wall soundproofing solutions establish him as a revered and reliable expert in the field.
