How To Install A Bathroom Roof Vent

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

How to install a bathroom roof vent.

For optimum performance locate it between the shower and the toilet. Connect power to both switches through two pigtails spliced to the feed wire. Climb into the attic and clear away any insulation from around the hole. From inside the attic drive a nail through the roof directly above the bathroom vent fan.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. The lower half of the flange sits on top of the shingles. The top half of vent flange needs to be covered. Next hammer in a nail every few inches to secure the vent to your roofing structure.

Be sure to like and subscribe in order to help me bring you more helpful videos filled with tips and tricks i ve learned over the years. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Nail the lower corners with roofing nails and tar the heads. To vent a bath fan through the roof you must first prepare a ductwork connecting the roof top to the bathroom.

Then drill a hole on the roof top. Slide the vent under the shingles so they cover the top half of the vent flange. Apply a bead of asphalt roof cement on the bottom of the vent. Connect the red wire to one switch terminal and the black wire to the other terminal.

Turn your vent upside down and apply a thick bead of caulk to the flange. On the bottom of the vent you need to spread some asphalt roof cement next. Slide the top and sides of your vent underneath the surrounding shingles and leave the bottom side of the vent exposed and laying over the shingles. Center the nail between two rafters.

For a fan and light switch with existing wiring splice the white wires and connect the grounds securely with wire. Table of contents hide.