Evaporating liquids do not carry salt, rather they leave it behind.
Its more likely carried off from the roof masonry etc.
Wet rot or dry rot?
- Thread starter nortonj
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Its more likely carried off from the roof masonry etc.
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Salts, not so sure on the wood... I've seen that where brick/mortar or sandstone leeches after a while though (efflorescence) and is usually where there are damp conditions, you can get a kind of white fuzz as the salts crystalise.
I think the extractor from the bathroom is the cause of your stuff though, which would probably be a mould, your cuprinol will sort it.
It won't affect what you are doing though.
I think the extractor from the bathroom is the cause of your stuff though, which would probably be a mould, your cuprinol will sort it.
It won't affect what you are doing though.
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We had that white on the old roof timbers, also the loft was full of soot from being around since the 20s.
I assume the white was either related to the old timber treatment they used to use, or dissolved from the soot that was on every surface whether it was horizontal, vertical, or even the undersides of the sloping rafters.
It wasn't an issue and was still solid and the structural engineer for the roof rebuild didn't seem concerned.
I assume the white was either related to the old timber treatment they used to use, or dissolved from the soot that was on every surface whether it was horizontal, vertical, or even the undersides of the sloping rafters.
It wasn't an issue and was still solid and the structural engineer for the roof rebuild didn't seem concerned.
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The bad timber is directly above the extractor thats why its soaking.
And yes the ventilation is crap they bricked up right to the felt on the inner skin and put a few token vents through the soffit.
Im converting loft so will have to sort this out.
And yes the ventilation is crap they bricked up right to the felt on the inner skin and put a few token vents through the soffit.
Im converting loft so will have to sort this out.
Yes. Its a house im doing up and family moving into this summer hopefully.You have a fan extracting directly into the roof space?
this site looks handy.
I've done a fair bit of building joinery repairs over the years. lots of helpful pics here.
https://www.wisepropertycare.com/news/dry-rot/difference-between-wet-rot-and-dry-rot/
I've done a fair bit of building joinery repairs over the years. lots of helpful pics here.
https://www.wisepropertycare.com/news/dry-rot/difference-between-wet-rot-and-dry-rot/
I had the same on a roof joist. I had been into the attic to put the extractor fan on an isolator switch and when I got up there and removed insulation, the ducting had come off the "out" end meaning warm/wet air had been entering the loft artificially.
I scraped it off, repaired the ducting and its been fine and dry since. We don't have felt though so the extra ventilation from the exposed tiles may have helped.
I scraped it off, repaired the ducting and its been fine and dry since. We don't have felt though so the extra ventilation from the exposed tiles may have helped.
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