Bathroom exhaust fans are not required by most codes.
Best person to install bathroom famn in attic.
Bathroom exhaust fans perform an important function by removing excess moisture from your home.
You may just want to go with a completely new vent the whole way most modern bathroom fans require 4 or 6 vent hoses for much better performance and lower noise.
The attic bathroom will need electricity to supply at least two 20 amp gfci outlets and one switch controlled ceiling light.
After you have successfully removed your old bathroom fan you can now install your new one.
When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form.
In some localities the building department may require the use of r 3 to r 8 fiberglass pipe insulation to control condensation and even when it isn t required it s.
Install bathroom electrical circuits.
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.
In lieu a window 3 feet square or more capable of being opened at least halfway will suffice.
Determine where the ceiling joists are and do not cut into the joists for any reason.
Installing a bathroom fan without attic access.
Those individuals who are installing a bathroom exhaust fan without attic access will want to first measure the hole in.
Options for venting a bathroom exhaust fan include best to worst.
I would recommend installing a bath fan with a new vent that goes to the gable wall roof or even the soffit last choice.