Sound insulating a party wall.

amfisted · Monday at 5:04 PM

Not sure whether this is the correct section of the forum, but here goes.

Suggestions for sound-insulating a party wall in a semi-detached bungalow, please. We love living here but the adjoining walls seem to be paper thin and I think a solution is required. At present there's an elderly lady living next door on her own, but I suspect she'll be moving on soon and new neighbours could be noisier.

I've had a look online and I favour a DIY solution rather than paying for expensive but no doubt effective specialised products. Perhaps an additional stud wall with acoustic insulation panels finished off with plasterboard?

Any useful advice welcome, thanks.

Wayners · Monday at 7:02 PM

Timber screwed to wall to match the rockwool depth. 50mm I think it is.
Acoustic rockwool packed in.
Resilient bars across.
Double sound block plasterboard screwed to the resilient bars. Boards are heavy.
Don't let the plasterboard touch ANY of the edges. Pack floor, wall and ceiling with 2- 3mm packers around the edges.
It's important that the double layer of sound board is floating.
Acoustic mastic around the edges. When set pull packers and fill packer holes with acoustic mastic.
Tape and skim wall.
Fit skirting

Power sockets are a bit tricky but look up how you install those.
You still have the ceiling which will let sound through and the floor.
Sound proofing is all of nothing.
Don't think it will help or reduce noise if you cut corners or do a half job.

There are other way to sound block but thats one I've done

amfisted · Monday at 7:16 PM

Wayners said:
Timber screwed to wall to match the rockwool depth. 50mm I think it is.
Acoustic rockwool packed in.
Resilient bars across.
Double sound block plasterboard screwed to the resilient bars. Boards are heavy.
Don't let the plasterboard touch ANY of the edges. Pack floor, wall and ceiling with 2- 3mm packers around the edges.
It's important that the double layer of sound board is floating.
Acoustic mastic around the edges. When set pull packers and fill packer holes with acoustic mastic.
Tape and skim wall.
Fit skirting

Power sockets are a bit tricky but look up how you install those.
You still have the ceiling which will let sound through and the floor.
Sound proofing is all of nothing.
Don't think it will help or reduce noise if you cut corners or do a half job.

There are other way to sound block but thats one I've done

Superb, thank you.

Tigercubrider · Monday at 9:38 PM

When you put the second layer of plasterboard on, ensure that the joins are staggered.
It helps if you think about the seams when putting up the first layer.
Use some of the mastic on the seams

aveatry · Monday at 9:47 PM

Wayners said:
Timber screwed to wall to match the rockwool depth. 50mm I think it is.
Acoustic rockwool packed in.
Resilient bars across.
Double sound block plasterboard screwed to the resilient bars. Boards are heavy.

I used a product called green glue between the two layers of PB

Wayners said:
Don't let the plasterboard touch ANY of the edges. Pack floor, wall and ceiling with 2- 3mm packers around the edges.
It's important that the double layer of sound board is floating.
Acoustic mastic around the edges. When set pull packers and fill packer holes with acoustic mastic.
Tape and skim wall.
Fit skirting

Power sockets are a bit tricky but look up how you install those.
You still have the ceiling which will let sound through and the floor.
Sound proofing is all of nothing.
Don't think it will help or reduce noise if you cut corners or do a half job.

There are other way to sound block but thats one I've done

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Sound insulating a party wall.

amfisted

Wayners

amfisted

Tigercubrider

aveatry

DIYnot Local

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