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If you mean it's damp on the inside could it be condensation? Is there a cold spot at that point and very little ventilation? These are the things that I'd be looking for..
A damp meter with two prongs (under £20) would help you establish the limits. Has the cavity been filled, or is the house built before that ?
A surveyor with formaal qualifications would be advisable.
If you mean it's damp on the inside could it be condensation? Is there a cold spot at that point and very little ventilation? These are the things that I'd be looking for..
There's no condensation in there Barry.
It's very worrying because it's little irregularly shaped patches about as big as a hand just blending into each other from top to bottom - corner to corner.
After we had the guttering cleared and the chimney pot pointed we thought it would dry out but it hasn't. Now it's spreading to the bedroom next door which is my bedroom!
Whilst he's up the ladder, get him to look at breaks in the guttering or supports missing and whilst he's up there, get him to poke at the pointing.. If its loose it will break away easily
I had a flat with one soaking wet wall and it was the guttering. It had shifted and was tilting toward the wall which meant the water was just pouring against it