Advice Please! Damp wall in conservatory

Discussion in 'Other Trades Talk' started by Liz croly, Sep 6, 2017.

  1. Liz croly

    Liz croly New Member

    Hi,

    We have just moved into a Victorian terraced property with an old lean to style conservatory at the back (two full height walls either side with polycarbonate roof and upvc windows and doors upon entrance to garden) We are soon to get the polycarbonate roof and old windows replaced professionally with high standard glass and patio doors.

    The wall to the right clearly shows that it has damp, we are unable to treat this externally as it is joined to a neighbours outhouse. The plaster is falling off and skirting board shows sign of wear. Is anyone able to advise the best way forwards to solve or control this issue? The boiler is mounted to this wall (much higher than where the damp is) so will make plaster boarding etc. Difficult.

    We have had a couple of damp specialists round and a surveyor (he came to discuss replacement window plans) all of which have said that structurally the building is sound and it's purely cosmetic. One damp specialist said he could put a damp proof injection in for and get a "mate" to move the boiler whilst this is done for £550. The other said that whilst you could treat it where it's an external wall it may just come back and he wouldn't be happy doing it as he would have to charge us thousands for for what could be an unreliable fix and would advise treating the cosmetic wear ourselves. Just looking for some advice on how to control the issue! Sorry for long post.

    If photos would help I can post

    Thank you,
     
    Last edited: Sep 6, 2017
  2. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Not necessarily for me, but you might want to elaborate on the below!

     
  3. Liz croly

    Liz croly New Member

    IMG_7112.JPG
    On the back of their house they have a small brick building (just used for storage) which backs onto a brick wall and then our conservatory wall is built against this. Thanks

    Here's an image of the corner with damp (the skirting and flooring are being replaced also)
     
  4. KIAB

    KIAB Super Member

    You sure there no leak from above, leaky roof,flashing, pipework, pointing,etc.

    'Small brick building which backs onto a brick wall and then our conservatory wall is built against this'
    is there a gap between the walls allowing a build up of crud to bridge dpc.

    How far up the wall is the damp?
     
  5. Liz croly

    Liz croly New Member


    Hi, The damp meter showed that the damp was to just above the large crack next to the boiler.

    All flashing and guttering is being replaced when we have the new roof fitted.
    Ive been told that it may just be that because it's been a single brick wall built against an external wall the damp will come through from there?
    Would you have any advice on how to best repair the plaster? Thanks
     
  6. KIAB

    KIAB Super Member

    Pointless repairing the plaster until the wall has dried out, & you have sorted the possible cause, the roof.
    Could treat outside of wall with a water proofer, but everything needs to dry out first.
     
  7. Liz croly

    Liz croly New Member

    Right OK thanks, to ensure it's dried out, is that just a case of leaving it once roof is replaced? How long would you suggest? (Very new to all this)

    we cannot acces the neighbours outhouse so can't really treat the wall from the outside unfortunately.
     

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