How To Install Roof Mounted Exhaust Fan

Simply cut an opening in the roof typically near the peak and install the fan over the opening.

How to install roof mounted exhaust fan. The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. Slide the vent under the shingles so they cover the top half of the vent flange. Roof fans are mounted on plastic or sheetmetal bases that serve as flashing. Step 1 mount the vent as close to the center of the house as possible.

Alternatively the fan will be wired into a control box. Unscrew the wire nuts that attach the fan wires to the box. Then shingle above and. Remove the cover from the box using a screwdriver.

Mount it as near to the roof ridge without it being visible from the front of the house. Then get on the roof and draw the circle around the pilot hole with a piece of chalk. Draw a circle on the roof matching the diameter of your fan. 2 select and prepare your site.

Apply a bead of asphalt roof cement on the bottom of the vent. The pilot hole you drilled should be in the center of the circle. If you have access to the attic the fan can vent either through a gable wall or roof. Avoid venting through a soffit vent or ridge vent.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. The lower half of the flange sits on top of the shingles. Nail the lower corners with roofing nails and tar the heads. Use a tape measure to determine the diameter of your fan or check the manufacturer s specifications.

Pull the plug from the wall. Before installing your roof mounted exhaust fan inspect the equipment for any interior or. The next step in installing your restaurant kitchen exhaust fan is to select and.