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    1970s plasterboard sandwich panel-water resistance


    My bathroom wall is old-style cardboard and plaster sandwich board. It's been soaked from above by a boiler leak and I wondered if the cardboard in the middle is compromised. I can't see it drying out very well and I'm concerned about mould as well as structural strength

    Asked by Chris on 8th Feb 2021
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    "Gypsum boards must be completely replaced, preferably green ones"

    Answered on 9th Feb 2021 - Member since Oct 2019 - report
    Ts plastering

    "Hi if in doubt change it as boards normally don’t hold well after water damage"

    Answered on 8th Feb 2021 - Member since Jan 2021 - report

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