DIY Doctor

Is this damp causing plaster to come off?

Postby ianhoughton » Wed Apr 15, 2020 10:29 am

We have an internal wall in our lounge where the plaster has started to come off. Having stripped some of the top coat of plaster off the wall, and removed the socket, I've noticed that the socket backplate is rusty. Is this damp coming up from the floor (we have concrete floors, 1960's construction).

There is no damp on the other side of the wall (kitchen), and there is nothing above that could be leaking (the flaking plaster stops about 2 feet from the floor)

IMG_5124.JPG
Pic of socket
ianhoughton
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Postby stoneyboy » Thu Apr 16, 2020 10:00 pm

Hi ianhoughton,
Almost certainly damp rising up the wall.
You need to determine whether the concrete floor has a damp membrane and whether this is linked to a DPC in the wall.
Regards S
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