How To Install Exhaust Fan In Bathroom On Roof

Choosing a whole house fan.

How to install exhaust fan in bathroom on roof.

You will need a partner for this step as you cannot see the ceiling from this position. If the hole is too big you ll need to patch the ceiling. Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it. The lower half of the flange sits on top of the shingles.

Then drill a hole on the roof top. Place the fan in the cut out hole so that the bottom edge of the fan is flush with the bottom of the ceiling drywall. The patched areas can be repaired with spackling later. Apply a bead of asphalt roof cement on the bottom of the vent.

Avoid placing your bathroom exhaust fan over a tub or shower. Here is the link to th. Table of contents hide. Access the attic and bring your light cordless drill screws and bathroom fan housing.

To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom. Mark the location of your fan by inserting a 16 inch roofing nail into the drywall at each corner so the nails protrude into the attic. Open up the electrical splice box from either the attic or the bathroom depending on the model and pull out the fan wires. Attach the bathroom fan to the joist.

Nail the lower corners with roofing nails and tar the heads. Slide the vent under the shingles so they cover the top half of the vent flange. Attach the electrical wires to the fan wires by twisting same color wires together white to white and black or red to black and attaching a wire connector. From the attic locate the nails and mark the location of the fan with a pencil.

Cut a piece of drywall to make the ceiling hole the right size for your fan.