How To Replace A Bathroom Vent Fan Without Attic

Begin by removing the screws on the cover of the old fan so that you can access the wiring.

How to replace a bathroom vent fan without attic.

Use a circuit tester to ensure that the power is turned off. You might have to remove a few screws to get it out. Remove the grill cover. Bathroom exhaust fans perform an important function by removing excess moisture from your home.

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. 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. Remove your old exhaust fan. On the side of the hole opposite the joist attach a piece of 1x lumber inside the hole.

If your old fan wasn t attached to a joist and there is a space between the joist and the ceiling hole attach lumber to the joist to build it out next to the hole so the fan can be screwed to solid wood. The bathroom exhaust fan should be attached to at least one ceiling joist. Turn off the breaker box. My favorite bathroom fan to install without attic access is made by panasonic and called the whispervalue.

The ezfit fan is also more powerful and much quieter than typical fans. Determine where the ceiling joists are and do not cut into the joists for any reason. These are easy to use and can be purchased at most home improvement stores.