Install An Attic Vent Fan

Most homes already have some passive attic venting built in.

Install an attic vent fan.

Discover the difference between a attic fan and a whole house fan. Most powered attic ventilators come with a thermostat which controls when the fan turns itself on. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. Cool air enters the attic through soffit vents in the eaves.

These run 100 to 300 each and installation costs around 100 units without a thermostat run between 80 and 100 you can buy a separate thermostat humidistat controller for 40 to 50 since attics account for up to 20 percent of the average cooling bill fans that. To save time use an existing roof or gable vent to install your new attic fan. This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan. Once inside the air heats up and rises higher ultimately exiting through venting at the roof s gables through ridge vents cut into the roof s apex or other vent holes in the roof.

Get the trade secrets from the jet fan man who has installed around 13 000 attic fans since 1983. If your attic uses soffit vents at the bottom and gable vents at the top for ventilation having a gable vent fan drawing air into the attic would not be the best solution since it would tend to create positive pressure in the attic which could reverse the natural air flow that occurs when heat rises up through the soffit vents and out through the gable vents. Cool attic cx1500ups power gable mount ventilator. Then we unbox and install an attic fan.

Then shingle above and around the flashing just as you would for a standard roof vent or plumbing. 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.