This will help to avoid premature damage to the shingles or mold building up in moist hot.
Attic fan box.
This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your electricity bills.
Step 5 tape strips of plastic tarp using duct tape to the sides top and bottom of the fan to cover the seam between it and the attic wall.
30 watt solar attic fan black with thermostat humidistat 22 x 22 x 11 in brushless motor hail and weather resistant solar vent fan solar powered attic fan for homes by remington solar 4 5 out of 5 stars 99.
Place the box fan open side facing away from you into the opening where the attic grille was.
Use a wood handsaw to enlarge the opening if necessary before putting the fan in.
An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents.