Installing Roof Ventilation Fan

Gable fans are installed at the very top of your gable end walls and vented through the walls outside.

Installing roof ventilation fan.

To save time use an existing roof or gable vent to install your new attic fan. Apply a bead of asphalt roof cement on the bottom of the vent. Nail the lower corners with roofing nails and tar the heads. Roofers are the most qualified to install attic fans mounted 1 on your roof line.

Choosing a whole house fan. Adding attic vents is a simple matter of cutting holes and installing vents. But before you cut any holes plan the locations of the attic vents. Roofers charge between 45 and 75 per hour.

The lower half of the flange sits on top of the shingles. However if you are mounting 1 the vent or fan on your roof or if you are installing an electric or solar powered fan you will need to hire a professional installer to do the job. Slide the vent under the shingles so they cover the top half of the vent flange. To install an attic fan over a gable vent in your attic trace the body of the fan onto a piece of plywood that s wide enough to mount on the studs on each side of the vent.

You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. Quietcool smart 2830 cfm power gable mount attic fan at amazon this model is our top pick for its ease of use simple installation and maximum energy efficiency best budget. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them.

Photos 1 6 show how it s done.