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Old 07-25-2016, 05:52 PM   #1
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adding a chimney chase to an existing roof


I am getting ready to have a chimney chase installed in the middle of an existing roof to enclose an existing metal chimney pipe. My question is how should the installer go about securing it to the existing structure?

the chase will be approximately 8' tall by 4' wide by 3' wide and we can get winds 50 to 70 mph, so I am concerned about the wind loading and ensuring that the chase is secure.

appreciate any thoughts or suggestions.
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Old 07-25-2016, 06:29 PM   #2
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Re: adding a chimney chase to an existing roof


The corners of the chase should poke through the rof structure, and be tied into the framing below as much as possible.
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Old 07-25-2016, 07:52 PM   #3
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Re: adding a chimney chase to an existing roof


you could also possibly use CST or MST straps at each corner and just cut a small slot to feed the strap through.
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