Around here attic air vents out through roof vents - not much in the way of reverse flow. As for windows, air could just as easily enter as exit - I would not make such an exception for windows.

I think that the proximity of a soil stack to a roof vent is a situation where one could slide on the 10 foot rule. After all, we are professional inspectors and should be able to make such judgments. I really don't think that "code" requirements are always correct and need to be taken literally.

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Eric Barker
Moraine Woods Consulting, Inc.
Barrington, IL