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leak - Possible source of dripping from bathroom exhaust fan? - Home Improvement Stack Exchange
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Should the contractor who installed my two bathroom fans have connected the exhaust ducts to the roof vent hole? Or is this an acceptable venting method? : r/hvacadvice
Proper Way to Vent Bathroom Exhaust Fan? (More Info in Comments) : r/hvacadvice
Bathroom exhaust fan can vent out through the wall or up through the roof | Building America Solution Center