Originally Posted by Horace
Does it make sense to exhaust a bathroom exhaust fan through the attic and to the vent in the gable? It would seem to me that overtime the moisture would eventually rot the wood, or cause mold. That plus the run from the floor of the attic to the vent is about 4 feet up.
Building Codes generally require bathroom exhaust fans to vent directly to open space(air) and never to an attic.
This generally means you cannot vent a bath exhaust into an attic and expect it to passively vent via attic vents.
Under most circumstances, MinConst is wrong and in violation of most building codes....