Installing Roof Vent For Bathroom Fan

Nail the lower corners with roofing nails and tar the heads.

Installing roof vent for bathroom fan.

Plan the installation so the vent duct is as short as possible and makes as few turns as possible. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. From inside the attic drive a nail through the roof directly above the bathroom vent fan. 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. Center the nail between. In addition to a vent fan a bathroom unit may have a light night light or heater. Next we must slip a worm drive metal clamp on the inside part of duct liner.

Idea 5 connecting the duct to the bathroom fan remove the tape from the fan first. See below for a shopping list and tools subscribe. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. How to vent a bath fan through the roof 1.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. If possible run the duct straight out through a wall. Draw a mark on the bathroom ceiling where you d like to install the vent fan. The lower half of the flange sits on top of the shingles.

Choosing a whole house fan. For optimum performance locate it between the shower and the toilet. A heater uses more power than a light and fan so it may need to be on its own circuit. Climb into the attic and clear away any insulation from around the hole.