Install Bathroom Exhaust Fan Roof

Try to keep it close to the fan location.

Install bathroom exhaust fan roof.

Install the roof vent install the roof vent by sliding the top flange under the shingles above it and resting the bottom flange on the shingles below. You will need a partner for this step as you cannot see the ceiling from this position. For optimum performance locate it between the shower and the toilet. Secure the vent flanges with roofing nails before installing the shingles.

Most roof overhangs today have continuous soffit ventilation strips. You mount a switch in each bathroom. Make sure to check my other vide. 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.

A single exhaust exits through the roof figure a. Sinnisjinsulator video includes how to and tips on attic bathroom fans and proper placement and insulation of exhaust hose. Climb into the attic and clear away any insulation from around the hole. Attach the bathroom fan to the joist.

The next best location for a bath fan cap is a wall that s at least three to five feet from a roof overhang. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Use the information below to select a fan.

Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. The installation is easiest if you re replacing an existing fan. Leave the drill bit sticking through the roof so you can find the hole. Start in the attic and drill a hole through the roof in the desired vent location.

Also it helps to get a fan that s the same size as your existing fan so you won t have to adjust the size of the ceiling hole. This system is quiet too. Apply roofing adhesive on the underside of the flanges to seal. A grille in each bathroom attaches to ducts which then fasten to a y connector at the fan.