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Offset Chimney

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So the chimney would exit at the peak, where it can be flashed so it doesn't leak.

They'd offset the chimney base so it wouldn't run up directly through the center of the house, and take it out the peak in the attic.

Or, so I've been told.

Made sense to me at the time. Back then, folks understood about the high sides of roof penetrations leaking.

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There are 3 different reasons a chimney may be offset:

  • To penetrate the roof at the ridge so as to avoid having any roof slope above that would need to be diverted around the chimney (cricket)
  • To avoid cutting and supporting a structural member
  • Some architectural styles include chimney placement as part of the design.
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