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    • Claireybeau
    • By Claireybeau 9th Nov 19, 9:15 PM
    • 108Posts
    • 1,473Thanks
    Claireybeau
    External Wall Insulation
    • #1
    • 9th Nov 19, 9:15 PM
    External Wall Insulation 9th Nov 19 at 9:15 PM
    Our home was built in stone in 1913 so has no wall insulation. Iím very interested in external wall insulation as it currently has render that is cracking.

    Does any one know how much roughly to expect a three bedroom detached house to cost. Also any recommendations of companies that cover the Chepstow (South Wales) area

    Are there any grants?

    Thanks in advance
Page 1
    • FreeBear
    • By FreeBear 10th Nov 19, 11:02 AM
    • 3,323 Posts
    • 4,298 Thanks
    FreeBear
    • #2
    • 10th Nov 19, 11:02 AM
    • #2
    • 10th Nov 19, 11:02 AM
    Our home was built in stone in 1913 so has no wall insulation. Iím very interested in external wall insulation as it currently has render that is cracking.
    Originally posted by Claireybeau
    Do your research very thoroughly. External wall insulation on a solid wall can often lead to more problems that it solves. There is a very real chance that water (damp) could get behind the EWI and make the wall wetter than it already is. Damp walls conduct heat to the outside faster than a dry one. To combat any issues with damp, the EWI should be vapour permeable (including the render) and the detailing must be of the highest standard - Most installers will want to use stuff like expanded polystyrene and slap a coat of K-Rend on top, pay scant regard to window reveals or any complex junctions at the roof line.

    Have a chat with the guys over at Mike Wye - They may be able to recommend someone. It won't be cheap, and there isn't any grants available that I know of.

    Also bear in mind that you'll need building control to sign off on the work (check to see if planning permission is required). If you are in a conservation area or the property is listed, there will be additional hoops to jump through along with extra costs.
    Her courage will change the world.

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    • Claireybeau
    • By Claireybeau 10th Nov 19, 3:46 PM
    • 108 Posts
    • 1,473 Thanks
    Claireybeau
    • #3
    • 10th Nov 19, 3:46 PM
    Thank you FreeBear
    • #3
    • 10th Nov 19, 3:46 PM
    Thanks for your advice - very much appreciated
    • Claireybeau
    • By Claireybeau 12th Nov 19, 12:47 PM
    • 108 Posts
    • 1,473 Thanks
    Claireybeau
    • #4
    • 12th Nov 19, 12:47 PM
    Sand and Cement
    • #4
    • 12th Nov 19, 12:47 PM
    Have since found out ours is Sand and cement and likely to be more difficult as it's likely failing hence the damp
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