The best way to proceed with a bathroom fan installation with no attic is to run the venting duct between the ceiling joists and through a nearby exterior wall.
Exhaust fan without attic access.
Evaluate the electrical options.
If you are searching for some ways to follow to replace your bathroom.
I ve replaced lots of this style broan fan and they are very popular.
Determine where the ceiling joists are and do not cut into the joists for any reason.
Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less.
Another thing you ll want to do is to make sure you have the ability to mount.
For this reason they ask how to replace a bathroom exhaust fan without attic access.
Once all this is done take hvac tape or a clamp and attach the duct connector.
Not having attic access seems problematic to some people.
Then just patch the access hole.
Then cut an access hole in the ceiling right next to the wall where you can cut the exhaust hole in the sidewall.
You don t need to worry about attic access.
However it is not a big deal.
Attach the duct connector to the duct.
Installing a bathroom fan without attic access mounting your new bathroom exhaust fan.
The optimal location for a bathroom fan is between the toilet and the shower.
Because you can do everything related to replacement underside.