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What's the most effective soundproofing material for internal walls?
3 Answers from MyBuilder Insulation Installers
12.5mm thick Gyproc Soundbloc boards fixed with Green Glue.
So long as the existing plaster is good & sound,you can fix directly onto this with the boards & the glue.
1 layer of board fixed with the glue will make a significant difference to your soundproofing,even better with 2 layers of boards but please bear in mind that it might not give you 100% soundproofing as sound can travel through floors & ceilings.
You will need approx 2 tubes of the glue per 2400mm x 1200mm board.
Any good builders merchant will sell Soundbloc.
Details of where to buy Green Glue are here:
for more information on the product and 'how to' video.
If you require any further information,just come back on the forum.
Answered 18th Nov 2011
Farnborough • Member since 25 Jan 2010 • 37 jobs, 100% positive feedback
Please be aware that not all the noise is coming directly through the walls. Noise is also transmitted through the floor and ceiling joists and any connecting walls. I would recommend a free survey by a specialist company.
There is nothing wrong with you then using that information to obtain quotes from other builders.
Answered 17th Nov 2011
By internal wall im guessing you mean a stud wall. Dense fibre matting, sound breaker bars and sound block plasterboard on both sides. But bear in mind the above answer
Answered 18th Nov 2011
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