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would this defeat the whole point of wall insulation?

Discussion in 'Plastering and Rendering' started by markyyyyyy, 19 Dec 2020.

  1. markyyyyyy

    markyyyyyy

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    Am installing 37mm insulated PIR board via dot and dab.

    Around door and window reveals, i was going to use standard 12.5mm plasterboard instead of 37.5mm board- would this defeat the whole point of insulating the wall, or would it be ok?
     
  2. cross thread

    cross thread

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    Careful you don’t cause a cold spot, as the room moisture will be attracted to it
     
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  4. SFK

    SFK

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    Some insulation better than none otherwise you will get water condensing there.
    If thickness is issue, cut pir board thinner (say 10mm) for window reviews.
    Sfk
     
  5. markyyyyyy

    markyyyyyy

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    great thanks
     
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