Damp course

My sister has a 1930s semi- detached house ,all completely rewired, new kitchen/ bathroom and fireplaces removed. Replasteted. Done about 10 years ago. She now has ' rising damp ' on the inner connecting wall of the dining room. The builder says she needs a new damp course . Though this was done too 10 years ago. I have never heard of rising damp on an inner wall. Is this possible. And what could be the cause?

2 Answers

Roofing & Renovations
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This could be due to poor ventilation as the fire places have been removed as they are a natural vent also if your windows are old they may not have trickled vents the damp cours should still be good after only ten years
1st Jul 2022
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This all depends if the floor is timber and the joists are on a sleeper wall or if solid flooring if the floor is solid concrete every chance a approved dpm hasn't been fitted if timber the joist should be wrapped in a dpc
27th Jul 2022
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