Overboarding solid poor condition plastered walls
#62
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Plasterboard over the top is just masking the issue.
Try washing down, with mold remover. Then use a small fan to help circulation of air in the room. If problem stay clear for months then it was just ventilation issue.
Edit another option, is to hire or buy a decent damp meter, with long probes ,. drill into the plaster and partway into brick work. Check level of moisture content. Do some comparison test holes in rooms where no evidence of mold occurs. These holes are only 5 mm diameter usually (on my meter) and about 30mm apart. If you have low level of moisture deep in the brick, it points to ventilation problems. I have such a meter, for testing flow screed floors. They're an invaluable tool to ascertain how well a new build is drying out before moving onto second fix and laying finished tile/wood/carpets
Last edited by andy97; 02 February 2020 at 08:11 AM.
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