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How long for plaster to dry

Discussion in 'Plastering and Rendering' started by Ss7001, 13 Oct 2021.

  1. Ss7001

    Ss7001

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    Hello guys. My walls have just been plastered and was wondering how long it would take for it to dry and go light grey colour. When I wake up in the morning there is condensation on inside of windows which is not good. Also there is no heating. Is it best to use dehumidifier and or electric heater to speed up process? Or if windows are opened during night would there be less condensation. I do not want condensation building up because we know it leads to mould.
     
  2. JohnD

    JohnD

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    open the loft hatch

    water vapour is lighter than air so it will rise up until it escapes.

    ventilation is more effective than heat

    open a downstairs window or door (or several) when you are at home and can keep burglars out.
     
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  4. Ss7001

    Ss7001

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    So it's best to have air flow? How long will it take to dry then?
     
  5. Godwasaplasterer

    Godwasaplasterer

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    the majority of the moisture should be gone in the first couple of days.
    it’s better to live with the condensation at the start as trying to dry out new plaster too quickly may cause shrinkage and cracking.
     
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  7. Ss7001

    Ss7001

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    The walls are still brown in colour. Some patches are lighter. Nearly been a week. I assume it may take longer
     
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