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    Damp patches around chimney


    We have got damp around our chimney breast what could it be? It appears to be working its way up from the floor.

    Asked by Debbie on 27th Sep 2019
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    Mark Oliver Plumbing and Heating

    "Possible causes. Lead flashing or pointing around the chimney stack is damaged or the damp proof course is not effective."

    Answered on 30th Sep 2019 - Member since May 2018 - report
    MRG Mould Specialists LTD


    If you have dampness coming through your chimney breast you have moisture penetrating through the internal side of the chimney breast via capillary action this will cause dampness to appear and eventually due to rise in humidity mould growth will become active.


    MRG Mould LTD"

    Answered on 10th Jul 2020 - Member since May 2020 - report

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