How to vent a ceiling bathroom fan through a snowy roof
Venting a bathroom fan through the roof in heavy snow areas risks snow blockage, but ceiling installations often leave wall venting impossible due to location. This leaves homeowners stuck between blocked roof vents and improper attic or soffit venting that traps moisture.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Looking into using soffit vents to push air past the soffits
- 2Add a vent to the exterior and connect the duct to it
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I need to vent a bathroom fan that is installed in the ceiling. Venting it out the wall is not an option because of its location . I have looked into venting it out the roof, but I live In an area where we get a lot of snow .”source ↗
“We are having our tile roof replaced in south Florida. They had to replace some plywood decking and we could see that our bathroom exhaust ducting ends inside the attic right at the soffit. Is this something that is permissible in Florida? My gut says this should not be this way. If it isn’t right, what would be my options?”source ↗