Because you can do everything related to replacement underside.
Replacing bathroom exhaust fan without attic access.
Not having attic access seems problematic to some people.
Attach the duct connector to the duct.
Wall switches for new vent fan if you want the new exhaust fan to use your old switch then no more.
You don t need to worry about attic access.
Installing a bathroom fan without attic access mounting your new bathroom exhaust fan.
Once all this is done take hvac tape or a clamp and attach the duct connector.
Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less.
What to consider before replacing your bathroom fan.
For this reason they ask how to replace a bathroom exhaust fan without attic access.
Another thing you ll want to do is to make sure you have the ability to mount.