daiking, on 22 February 2016 - 09:40 PM, said:
Is that a 4" solid wall with 2x2" battens?
I'm not too bothered as the sound isn't excessive now from the utility room into the living space. But if a bit of care now makes a difference in the future I can try that. Its not a big wall, only 3m long with a doorway but washing machine and tumble dryer live in there.
Christ! Don't do what I did.....if I'd have known what I know now etc!
The outhouse was formed from one painted brick cavity wall that had been rendered with "bullet proof" as in I couldn't chip it off, render. Then one 4" breeze wall and two 4" Celcon type cavity walls. A real mish mash and freezing cold - you might as well have been outside!
I basically lined it with 2"x2" and whacked Rockwool batts between. Then 1/2" plasterboard on the long walls and the 15/16mm acoustic stuff laid sideways on the short end walls. The sloping roof, I put some level ceiling joists in and 270mm of fluffy stuff. Luckily you stepped down into the room so I built a frame of 4"x2" in the garden and dropped it on the floor with 4" fluffy stuff between.