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I am installing a pellet stove whose flue pipe
will go up thru a copper roof.
The flange used is galvanized and I am concerned about corrosion between copper and galvanized.
I have thought about using a rubber boot as an
interface between the two metals or even having
someone fashion a copper flange.
Any thoughts about what I should do??
Thanks.
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This is a tricky one.
Even if you have something between them, rainwater would bring some elements of the galvanization in contact with the copper.
I would consider either as you mentioned a copper flange or else a stainless steel flange.
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The copper flange solution is a good one but
expensive. There is still the problem of
the connection between the flange and the pipe
itself.
I thought that by painting the galvanized flange
and using roof tar around all the base to cover everything,
the rubber gasket would work.
Any thoughts on that.
Thanks.
Jerry
9/3/2008
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Or copy this URL: https://www.metalroofing.com/spirit/comment/11993/find/Isaiah Industries, Inc.
9/5/2008
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