Damp appearing on dining room wall

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jambo0611
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Damp appearing on dining room wall

Post by jambo0611 » Tue Aug 14, 2018 9:11 am

Hi there, I recently purchased a property that had a few damp issues caused by cavity wall insulation, property is an old property and the cavity wall insulation was soaked inside. I have since had this removed and plastered each wall. recently there has been damp patches in the shape of bricks appear halfway up my wall, also a small patch of plaster has bubbled and left a white chalky patch which I have since sanded back. I hope the picture has attached ok for you to see what I mean. Any idea what is causing this? thanks in advance
Jamie
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wine~o
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Re: Damp appearing on dining room wall

Post by wine~o » Wed Aug 15, 2018 6:37 am

:welcomeuhm: the bubbling up you describe is called "efflorescence" salts escaping from damp walls... I can't help but wonder if there is some insulation still remaining ... only way to be sure would be an inspection camera.
Verwood Handyman

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