How To Install A Bathroom Roof Vent

The lower half of the flange sits on top of the shingles.

How to install a bathroom roof vent.

For a fan and light switch with existing wiring splice the white wires and connect the grounds securely with wire. Next hammer in a nail every few inches to secure the vent to your roofing structure. Turn your vent upside down and apply a thick bead of caulk to the flange. 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. Center the nail between two rafters. From inside the attic drive a nail through the roof directly above the bathroom vent fan. Apply a bead of asphalt roof cement on the bottom of the vent.

Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it. Slide the vent under the shingles so they cover the top half of the vent flange. Climb into the attic and clear away any insulation from around the hole. 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.

Connect the red wire to one switch terminal and the black wire to the other terminal. Draw a mark on the bathroom ceiling where you d like to install the vent fan. From the roof find the nail and use the utility knife to cut roof shingles from around the nail. Plenty more videos t.

Connect power to both switches through two pigtails spliced to the feed wire. The top half of vent flange needs to be covered. Table of contents hide. Simply slide the vent under shingles to do so.

On the bottom of the vent you need to spread some asphalt roof cement next. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.