pellet stove thru copper roof | Ask The Experts Forum

Guest User 9/3/2008	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. [email protected]	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11992/find/
Nate Libbey 9/3/2008	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.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11993/find/
Todd Miller Isaiah Industries, Inc. 9/5/2008	I agree with Nate.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11994/find/
Guest User 9/5/2008	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	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11995/find/

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