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attic condensation

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  • 25-10-2016 2:18pm
    #1
    herlihyd
    Registered Users Posts: 46 ✭


    Hi, I'm just looking for advise we got our attic converted 3 yrs ago, we hav condensation on the felt only on one side of the attic, the south facing side is ok, we think we know the problem, the builder put kingspan insulation to close with no gap to the felt. Any advise on how to tackle this, kind regards


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    #2
    BryanF
    Moderators, Home & Garden Moderators Posts: 10,140 Mod ✭✭✭✭BryanF


    Take off all the slates /tiles/battens/felt/insulation and start again with vapour barrier insulation/breathable felt/2 battens/ slates

    Or


    take down all the plasterboard/insulation internally, create ventilation cavity, install insulation followed by vapour barrier taped and sealed, then re plasterboard tap and skim. And add some vents externally through eaves/ridge or slate/tile.

    That's it


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    #3
    herlihyd
    Registered Users Posts: 46 ✭herlihyd


    herlihyd wrote: »
    Hi, I'm just looking for advise we got our attic converted 3 yrs ago, we hav condensation on the felt only on one side of the attic, the south facing side is ok, we think we know the problem, the builder put kingspan insulation to close with no gap to the felt. Any advise on how to tackle this, kind regards

    Hi that's sounds like a huge job and very expensive, basically taking off half our roof 😨


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