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Flaking paint and growing crystals

Discussion in 'Decorating and Painting' started by Pg0001, 6 Feb 2021.

  1. Pg0001

    Pg0001

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    Something odd in our basement bedroom. The paint above the skirting is flaking away and there seems to be something that looks like crystalline powder coming out. Any ideas what this could be and what I should do?! image.jpg image.jpg
     
  2. JohnD

    JohnD

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    Water penetration.

    If it has only recently started, a leak may be the cause.

    If it has not changed in the last hundred years, perhaps not.

    Stand back and show the whole wall. What's on the other side of it?
     
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  4. Pg0001

    Pg0001

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    Thanks. It’s new on a basement external wall. I’m told by my managing agent that it was tanked about 6 years ago. Would this suggest there’s a problem with the work?
     
  5. JohnD

    JohnD

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    Tanking suggests there is a problem with water that they hoped to hide.

    Your skirting looks like it is rotting.
     
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  7. JohnD

    JohnD

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