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Damp Patches on Walls in Top Bedroom After Temperature Drop

Postby Tom Mac » Fri Nov 16, 2018 1:01 pm

Hi, I bought a house in September and since the temperature has dropped damp patches have started appearing in our attic bedroom. The 2 side walls have wet patches mid wall as well as at the join with the ceiling, whereas the front wall is solely effected at the join.
I’ve had a roofer in to have a look and he is pretty certain it’s not a leak issue.
I have been using a dehumidifier and leaving the window ajar. This seems to have helped in the front wall but the 2 side walls remain an issue. The side containing the chimney breast has more patches.
Any advice would be greatly appreciated.
Many thanks, Tom
Tom Mac
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