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#1
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Wood preservative that won't weaken upvc fascia cladding?
I'm about to clad the fascia boards on my house with UPVC fascia cladding
(10mm thick). The existing wooden fascia boards have a little wet rot in a couple of places. So I'm thinking of treating those sections with some kind of wood presevative prior to nailing the cladding in place. I just want to make sure I don't use a preservative that's going to exude chemicals that could affect the UPVC in any way. Any suggestions? I would replace the affected woodwork, but there is no way I can do this as I can't afford a scaffolding and am doing the job with a ladder only. I'm wopndering if it's even necessary to treat the affected fascias, because wet rot stops as soon as the wood is no longer subject to dampness, I gather. Any views? Al |
#2
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Wood preservative that won't weaken upvc fascia cladding?
On 11 Sep 2011 14:24:23 GMT, "AL_n" wrote:
I'm about to clad the fascia boards on my house with UPVC fascia cladding (10mm thick). The existing wooden fascia boards have a little wet rot in a couple of places. So I'm thinking of treating those sections with some kind of wood presevative prior to nailing the cladding in place. I just want to make sure I don't use a preservative that's going to exude chemicals that could affect the UPVC in any way. Any suggestions? I would replace the affected woodwork, but there is no way I can do this as I can't afford a scaffolding and am doing the job with a ladder only. I'm wopndering if it's even necessary to treat the affected fascias, because wet rot stops as soon as the wood is no longer subject to dampness, I gather. Any views? Al I suggest you post your question in uk.d-i-y. AFAIK, if you apply preservative or paint, once it's dry it won't affect the PVCU. However, neither will it cure wet rot. If you seal moisture inside the wood then you may make any problem worse. So better to check with the "experts" in the other group. Cheers Jake ============================================== Gardening at the less wet end of Swansea Bay but moved on from Tolkien; now half way through the complete Harry Potter. www.rivendell.org.uk |
#3
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Wood preservative that won't weaken upvc fascia cladding?
Chris Hogg wrote in
: I suggest you post your question in uk.d-i-y. AFAIK, if you apply preservative or paint, once it's dry it won't affect the PVCU. However, neither will it cure wet rot. If you seal moisture inside the wood then you may make any problem worse. So better to check with the "experts" in the other group. Cheers Jake Missed the OP, so replying via Jake's post. We had UPVC soffits, fascias and barge boards fitted last year. Not cladding. The old wood was mostly removed, but in one place, a gable end, it wasn't possible to rip out the barge board, so they had to clad the existing timber. They spent some time boring lots of large (~30mm) holes right through the existing barge board, because they said otherwise condensation builds up behind the cladding and the wood rots. They said it was a common problem with simple cladding and cheap-jack installers. Whether true or not I don't know, but I see no reason why they should bother to do it otherwise. The contract was set and they needn't have bothered; I would have been none the wiser. My apologies I sent the original post to this group in error. I cancelled the post almost within a few minutes, as soon as I realised. Anyway, thanks for the input. Chris: Your hole-boring info was of special interest I haven't heard of that practice before. With the same end in mind, I was aready thinking of adding some kind of spacers between the cladding and the fascia boards to create a small (say 5mm) air space. Al |
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