How To Install Roof Vent Bathroom Fan

Slide the vent under the shingles so they cover the top half of the vent flange.

How to install roof vent bathroom fan. Venting means that after air from the bathroom is drawn into the exhaust fan it is blown through a connected flexible duct and out of the house through a hole in the side of the house or roof. Center the nail between. Over there mount the vent hood using tri polymeric locking seal paste and put the nails to strengthen it. Wrap the joints with duct tape.

Draw a mark on the bathroom ceiling where you d like to install the vent fan. Choosing a whole house fan. Since this is a new installation not a replacement your bathroom will not have ducting. Climb into the attic and clear away any insulation from around the hole.

Slide a flat pry bar underneath the. Table of contents hide. How to vent a bath fan through the roof 1. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

Slide clamps over the flexible duct at both the roof cap and the fan housing then slip the clamps over the tailpieces. Nail the lower corners with roofing nails and tar the heads. 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.

For optimum performance locate it between the shower and the toilet. The lower half of the flange sits on top of the shingles.