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Why do plasterboard nails 'pop'

Discussion in 'Plastering and Rendering' started by Chri5, 11 Jun 2007.

  1. Chri5

    Chri5

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    Its only happened in a few areas of the loft conversion done 24 months ago. but why do plasterboard nails 'pop' and start to push down a 2p sized area of the plaster skim?
     
  2. Ratter

    Ratter

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    I believe it's due to poor adhesion and I'm sure I read on another post (don't ask me where!) that screws are better in this respect because they have smaller heads and the crosspoint recess provides a better key for the plaster.

    But I expect a proper plasterer will have the definite answer.
     
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  4. noseall

    noseall

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    differing joist thicknesses.

    floor joists tend to be levelled through on the top edge affording a straight floor but can leave an uneven ceiling, as a ceiling can be plastered straight. once the board becomes damp with the first coat of skim then popping at this stage can occur.

    it can occur later with any impact to the stressed board or when fixing light fittings to the ceiling.
     
  5. Chri5

    Chri5

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    Thanks
     
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  7. diyisfree

    diyisfree

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    Use screws. then tape over joint and screws with your scrim.
     
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