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waterproof board for plastering ceiling

Discussion in 'Plastering and Rendering' started by givemestrength, 13 Apr 2014.

  1. givemestrength

    givemestrength

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    HI all.
    Looking for a solution to a problem I have. I am looking to board my garage roof. At the moment it has a exposed asbestos corrugated sheeting roof and exposed rafters. I want to Make the back room in the garage a small gym and put up a ceiling which will be plastered with downlights. It gets damp due to the type of roof so I need something that will withstand. I can put the ceiling up plaster and electrics no problem. All I need is something to plaster onto. I was thinking of aqua board but I don't know if plaster will hold.

    Anyone got a solution?[/b]
     
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  3. PrenticeBoyofDerry

    PrenticeBoyofDerry

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    Before installing any electrics, I would resolve any water ingress issues first!
     
  4. givemestrength

    givemestrength

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    Forget the electrics I have dealt with water ingress. Just concentrate on the plastering issues please
     
  5. PrenticeBoyofDerry

    PrenticeBoyofDerry

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    You stated you have damp issues due to the roof construction, so I assumed there was still an issue with damp, the problem downlights within voids in areas of damp is you are going to have potential issues with any terminals or enclosures that are not correctly IP rated for any influences that may be offered to them. It is a legal requirement that electrical installation are designed, installed and when in use are safe!
    If you have no water ingress, a standard plasterboard would be adequate!
     
  6. joe-90

    joe-90

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    Not another home gym story. We all know what you are really building. :rolleyes:
     
  7. givemestrength

    givemestrength

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    It really is going to be a gym,honest! I gets damp as no heating. I am concerned that the damp will blow the board hence my post. Is there an alternative to plaster on other than board?
     
  8. givemestrength

    givemestrength

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    I take it no one has an answer :cry:
     
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  10. roy c

    roy c

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    Take the asbestos sheets off felt and batten it then slate or tile it then put your plasterboard up. ;)
     
  11. stevethespreader

    stevethespreader

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  12. PrenticeBoyofDerry

    PrenticeBoyofDerry

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    If you want know if you can plaster aquapanel? then the answer is Yes!
    I have done it in many bathrooms where part of walls required tiles and parts required plastering, didn't want to use two types or boards so fully boarded with aquapanel, taped up joints and primed for good measure and skimmed as normal.
     
  13. Micilin

    Micilin

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    You can skim them but if damp is an issue why not finish them or at least the joints with sonmething like Rendaid, Weber Lac, Krend HPX, Perhaps even (I've not done this so advice needed) mastic the joints as you put each board up?

    For a plush job, there ar eacrylic renders etc but for a gym the above would do.
     
  14. givemestrength

    givemestrength

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    Thanks for all of the comments. My preference is to skim and this seems like it is feasible and I will prime with unibond first so fingers crossed as long as no one had any horror stories......
     
  15. Micilin

    Micilin

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    No PVA in damp -used SBR or Bondit , WBA etc . Also damp will degrade skim, so make sure damp is no longer there
     
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