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Old 11-29-2009, 11:52 AM   #1
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Damp problem/leak


Hi

Whilst clearing out our loft I have noticed a damp patch at the apex of one of the roof trusses. It looks as if there could be a minor leak in the roofing felt but I can't see any gaps through it when I look with a torch.

Can anyone hazard a guess at the likely problem ? For context the roof construction is trussed rafters - early 1980's construction. I've attached a few photos of it.

My best guess was that a ridge tile might be loose - however from outside nothing seems to be seriously out of place.

I'm concerned of possible structural problems with the roof if I don't get this sorted quickly.

Any ideas about what might be wrong or the best first step in finding out would be greatly appreciated

John
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Damp problem/leak-dscn0481.jpg   Damp problem/leak-dscn0483.jpg  

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Old 11-29-2009, 04:48 PM   #2
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Damp problem/leak


The trussed rafter may have penetrated the felt, and the ridge tile above could have moved slighty away from the mortar joint leaving enough of a crack for water to come in.

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