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Extensions

Pebble dash on outside wall with water marks on bedroom wall

Anonymous user 26/06/2025 - 10.17 AM

Could anyone advise what is going on here please. Water marks have appeared in the corner of the bedroom wall. They are not wet to touch just slightly cooler. The outside wall is pebble dashed. I’ve had a dehumidifier running for a week and the drum is full every time. It started on 75 and has come down to 40, if I shut it off for a few hours it goes back up to 55. Many thanks in advance. Could anyone advise what is going on here please. These water marks have appeared in the corner of the bedroom wall. They are not wet to touch just slightly cooler. The outside wall is pebble dashed. I’ve had a dehumidifier running for a week and the drum is full every time. It started on 75 and has come down to 40, if I shut it off for a few hours it goes back up to 55. Many thanks in advance. Update it rained overnight and the dehumidifier is reading 66

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1 Answer

MBConstruction

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Radlett
I had a similar situation. Water was leaking between the pebble dash and the brickwork. We couldn't get it to dry out, and it was getting in through the downpipe bracket from the gutter.
Answered18 July 2025
1