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Insulation

Insulation behind plasterboard

Anonymous user 09/03/2024 - 3.29 PM

We live in a Victorian house. The house was refurbished before we moved in. In the kitchen they used plasterboard to cover the walls (easiest option instead of plastering) and there is a large void behind them (you can her it when you knock the walls). Is there any way to insulate behind the plasterboard and what would you use to do it? I guess it would be something like expanding foam which could be sprayed in through holes drilled into the wall?

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6 Answers

ZENZAR CONSTRUCTION

Rating: 5 out of 5
Harrow
you can only plaster it, it will be ok, the noise will be reduced a lot,
Answered31 July 2022
1

Anonymous user

I would advise against filling the void. This reads as if they have dry lined the walls. They would have had a reason? If you fill the void you will bridge the gap and connect the outside wall to the plasterboard. This is likely to transfer any moisture into the room.
Answered31 July 2022
1

Warmer Solutions LTD

Rating: 4.9 out of 5
West Molesey
If you remove the plaster and expose the areas. You can apply foam to ensure all areas are insulated. By doing this there is no dew point and no chance for cold air to meet hot air. You will then re plaster over the areas as long as there is battons or a suffrage for the plaster to be attached to
Answered1 August 2022
1

J&M Lofts Ltd

Rating: 5 out of 5
Crewe
Insulation should have been installed before boarding obviously, expanding foam could create damp issues so you could add a second skin of insulation boards if that's not too expensive?
Answered5 August 2022
1

Energy Pig Limited

Rating: 4.7 out of 5
Glasgow
we have a new system called IWI bead where we inject bead into the dryline and has very effective
Answered25 August 2022
1

Jacob Nadin

Rating: 5 out of 5
Bradford On Avon
Handyman Hero I believe has the correct answer. Your walls will likely have been dry-lined - or 'dot and dab' style plasterboarding. This means that the board is only connected in a few areas by blobs of thick viscous plaster mix. The other areas are sitting say depending on how flat the stone is behind - 10mm-15mm away and consequently when you hit them they reverberate.
Answered28 December 2022
0