How To Install A Vent In Attic

In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.

How to install a vent in attic.

The following is a list of options for installing ventilation into a residential attic space. You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. Finish by securing it in place. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill.

Cut the sheathing out along that line and place your vent in your hole over the peak. Things needed tape measure gable vent assembly two by four lumber power drill with screw tip 3 inch wood screws plumb bob long 1 2 inch drill bit extension ladder straightedge reciprocating saw with bi metal blade tar paper utility knife construction stapler exterior caulk caulk gun cap flashing. Cut a hole that equals the size of your vent s throat. Space the holes 12 to 14 in.

Cutting the rafters could weaken the structure of the roof. Next lay the strip vent down on a flat wood surface such as a plywood sheet or long 2 x 4 and drill 1 8 in dia. When cutting the holes that will allow ventilation it s critical to make certain that you don t cut into the roof rafters. Of vent for every 300 sq.

A ridge vent is a ventilation strip that is placed along the ridgeline of the home. 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. When working with a roofline or turbine vent remove any shingles or felt paper between the two rafters where you ll be installing the vent.

Screw holes through both flanges. Learn how easy it is to install an attic fan. Get the trade secrets from the jet fan man who has installed around 13 000 attic fans since 1983. To install the vent the roofer slips the flange the metal lip of the vent under shingles at the upper part of the hole and rests the flange on top of the shingles at the down slope part of the hole.

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. Photo by merle henkenius.