I'm installing a bath fan in a bathroom that is on the street side of the house. It is probably a 15-20' duct run to get the vent to somewhere on the roof at the back of the house so the vent isn't visible from the street. I have a hard time believing that the moisture I'm trying to get rid of won't condense in this length run, so I'm considering running the exhaust through an eave. This installation would require a duct run of under 5'.
Any reason I shouldn't run the thing through the eave?
KB