Hot To Mount A Attic Fan

Much of that heat then conducts downward and finds its way into the house.

Hot to mount a attic fan.

Whole house fans work on the principle of removing the hot and humid air out of the house. Trying to solve the heat gain problem in your attic by using a fan is like lying out at the beach with a fan blowing over you and thinking you re not going to get a sunburn. Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.

Drill the screws that came with the fan through the screw holes on the fan s mounting bracket and into the plywood. We backed our screws with washers to keep the heads from pulling through. You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. Lay the plywood on a flat surface and line the fan up over the hole you cut out.

Mount the attic fan onto the plywood so it s centered over the hole. However the utility of attic ventilation fans is actually quite a controversial topic. It helps to cool your home temperatures and the attic by approximately 30 degrees. This will help to avoid premature damage to the shingles or mold building up in moist hot.

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. The whole house fan is installed inside the attic between the living space and ceiling. On one hand the national renewable energy laboratory said attic ventilation reduces attic temperature 10 to 25 degrees and slows the transfer of heat into the living space. Good insulation reduces fan effectiveness.