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Green Building Bible, Fourth Edition
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Housing - New Build: New build with defects

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  1.  
    • CommentAuthornewcomers
    • CommentTimeSep 26th 2022
     
    Hi,

    purchased a new build 4 years ago and after the 1st winter we knew had a problem. Had thermal imaging survey done which showed no continuous ribbon of adhesive and either no or incorrectly fitted cavity closers. Had expert witness structural survey done which showed no dpc around doors and frames, plus issues in loft and many other defects. Went legal and now 2 years later we have reached a settlement with the developer. The sum awarded to me would cover 75% of the costs involved to do the following:

    Remove all dry lining and apply ribbon of adhesive along with new skirting boards. Removed windows, doors and frames, install dpm and cavity closers. Replace carpets and redecorate.

    Would I achieve similar results by removing skirting boards and using foam to seal along the bottom of boards and wall? Could I inject foam along the tops of walls on both ground and first floor?

    It has been suggested to me to remove dry lining and then wet plaster instead as this would reduce heat loss even more, but unfortunately I dont think the sums awarded to me would cover enough of it.

    For the windows and doors I think the only way would be to remove them all and do it properly unless anyone has any ideas?

    I ask because Im worried that I will use all of the money awarded to me, plus a lot of my own money doing it the right way (full removal of dry lining etc) only to find it hasnt made much difference. Im also worried that injecting foam wont make much difference either!

    Any advice would be greatly appreciated.
    • CommentAuthorphiledge
    • CommentTimeSep 27th 2022
     
    Well done for pursuing the builder and getting a fair degree of recompense.

    If the ribbon of adhesive you mention is to close the sides of the dot and dab plasterboarding, then you can seal up the edges by drilling along the periphery and injecting expanding foam. Over the years, as we redecorate, external walls get the treatment before decorating

    Doesnt deal with gaps in the masonary masonary though! Not sure how youd evaluate that or easily remedy it.
    • CommentAuthornewcomers
    • CommentTimeSep 27th 2022
     
    There is no ribbon of adhesive at all!
    • CommentAuthorMike1
    • CommentTimeSep 27th 2022
     
    Posted By: newcomersIt has been suggested to me to remove dry lining and then wet plaster instead as this would reduce heat loss even more, but unfortunately I dont think the sums awarded to me would cover enough of it.
    That would undoubtedly be the best option, if cost wasn't a factor.

    Posted By: philedge...you can seal up the edges by drilling along the periphery and injecting expanding foam.
    And this would be the least disruptive and cheapest option. If you were to do it vertically at each board joint that would help too. Make sure that you use low-expansion foam, with care, so the expansion of the foam don't push the plasterboard off the blockwork. And don't drill through any electrical services that may be running behind the boards.

    Posted By: newcomersRemoved windows, doors and frames, install dpm and cavity closers. Replace carpets and redecorate.
    Yes, I imagine that you'll need to remove and refix the joinery to do that.
    • CommentAuthortony
    • CommentTimeSep 27th 2022
     
    I can’t see any advantage of removing windows and doors, a mad idea, not to mention expensive!
    • CommentAuthorNewbuild
    • CommentTimeSep 28th 2022 edited
     
    I would be hyper focused on getting this done in one go with very competent workers and then moving on.

    Can you expand on the window issues? Are insulated reveals not an option?

    I would argue against a retrofit parge coat, you need to know what you are doing to make it an effective airtightness layer.
    • CommentAuthorborpin
    • CommentTimeSep 28th 2022
     
    The other issue you face is the rapid rise in building material costs. This is eating into the money you were awarded very quickly.

    This is such a recurring issue. If it was anything else, you would have been able to return it as "not fit for purpose" and got a full refund.

    Posted By: Mike1If you were to do it vertically at each board joint that would help too. Make sure that you use low-expansion foam,
    Soudal FlexiFoam

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