what seal - wood bu...
 

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what seal - wood burner flue question

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any chance someone could point me in the right direction of which seal to use on a wood burner flue exiting a aluminum room?

flue

the old sealant has deteriorated and lets water in now. I presume i need a sealant that works on rubber and aluminum.

Cheers


 
Posted : 08/09/2022 11:47 am
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Surely that's not right?

I would have thought there needs to be a rubber seal or similar that goes over the top of the finished roof surface, rather than just relying upon some sealant between the roof and {flexible} rubber?


 
Posted : 08/09/2022 11:59 am
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there is a metal collar that i have raised in the picture, that sits hiver above the rubber. Not sure if the roof type would make having a rubber collar over the roof tricky, you can see where the roof joins raise, so a seal would lay flat.

(it was like this when we bought it 😀 )


 
Posted : 08/09/2022 12:05 pm
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Grey? Would think baby would be too small and elephant too heavy.


 
Posted : 08/09/2022 1:23 pm
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Grey? Would think baby would be too small and elephant too heavy.

👏👏

I'm glad someone went for the open goal before I got there


 
Posted : 08/09/2022 1:26 pm
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Vitcas heat resistant silicone. There's a high temperature and a very high temperature version, though they look quite similar. I used the very high temperature to be on the safe side, but it depends how far from your stove and if doubled walled I guess.

@stwhannah 😀


 
Posted : 08/09/2022 1:27 pm
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cheers @thenorthwind i'll look into that, though i had tried a heat silicon before, and it doesn't stick well to the rubber collar. Thinking some sort of rubber/tar paint might be better, but would that be suitable for a flue?


 
Posted : 08/09/2022 2:05 pm
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One that has been kissed by a rose on the gray.


 
Posted : 08/09/2022 4:19 pm
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That looks like a decktite flashing but instead of being fitted on top of the roof finish (presumably because the flue exits on a roof seam) so basically wrong to start with 🤔 if it were me I'd be fitting another decktite correctly (black is low temp, red is high temp) and working out how to fit round or trim back the roof seam. https://www.deks.co.uk/roofing-range


 
Posted : 08/09/2022 4:36 pm

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