2
votes
0answers
361 views

How to avoid water build-up in bathroom's passive ventilation shaft?

Our apartment building is 23 years old, and the bathroom has passive ventilation: basically there's a hole in the wall just under the ceiling, where warm moist air slowly escapes. It usually has a ...
2
votes
1answer
3k views

Why does my bathroom exhaust fan drip during the summer?

I've seen a lot of questions (including one on this site) about condensation on bathroom vents. However, they all seem to take place in winter, with consensus being that as the warm air from the ...