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Sound Board... and acoustic acrylic 'filler'

Discussion in 'Plastering and Rendering' started by paulandfrodo, 31 Aug 2016.

  1. paulandfrodo

    paulandfrodo

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    I've got a roof and I want to add a bit of sound dampening by using a double layer of plasterboard. As I'm a skin flint, I will use one of sound bloc, and one of normal 12mm.

    As far I understand when you put the sound boards up, you don't sit them 'tight' together, but leave a slight gap that you later on fill with the acrylic "acoustic" filler. Now, as far as I see things, this "acoustic" filler, essentially solves the problem of having slight 'air' gaps that you will normally get when putting up boards.

    Does anyone have any idea if I can just use any old acrylic filler - as opposed to this "acoustic" stuff that's really expensive. My gut feeling is that anything will do, as it will resolve the problem of the air gaps between (and around) the boards.

    I would appreciate either any direct use of the products of some common sense thoughts on the process.

    I will, of course ensure the second layer of boards are position so the joins are offset.

    Thanks in advance.
     
  2. 23vc

    23vc

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    I asked the question a couple of weeks ago as I'm doing similar on resilient bars, and was told you only use the mastic/sealant around the edges of the ceiling not in all the board joins. No idea if you can use any sealant but the acoustic stuff is cheap so I bought a couple of tubes.
    When you say it's expensive I'm paying 3 quid a tube plus VAT so maybe shop around?
     
  3. paulandfrodo

    paulandfrodo

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    Yes, I think I need to shop around :)

    I was considering resilient bars, but it's on a 38 deg ceiling and I really can't be bothered, if it was a normal flat ceiling I would have considered it.
     
  4. DIYnot Local

    DIYnot Local

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