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What is the cause of this damp and green dusty mould?

Postby Stuarty77 » Wed May 05, 2021 11:59 pm

This rear wall is damp, with a vertical 'tide mark' of this green dusty mould. What is the cause?
There was also moisture on the wall itself
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Simply Build It

Postby stoneyboy » Fri May 07, 2021 9:16 pm

Hi stuarty77
If you are referring to the dark strip next to the door frame then this may be as a result of replacement doors being fitted too far forward in the outer brickwork skin.
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