Vent stack offset
Posted by CM on January 22, 19101 at 08:02:34:
I am doing an extensive remodel of the top floor of my house that will require a 3" existing vent swack, which currently goes straight up through the roof, to be offset about 5 feet within the second floor joist space, then be run inside an exterior wall to the roof, where it will offset again a few feet before penetrating the roof.

Is this permittable by code, and if so, what is the required pitch of the horizontal portion of the vent?

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