Do Attic Gable Fans Work

How an attic fan works attic fans exhaust hot air from your attic to the outside.

Do attic gable fans work. The air intake duct is connected to a damper box containing a large hinged motorized damper blade. Many are solar powered and require no other wiring so they don t cause any additional charges on your electricity bill at all. If the air handler is located in the attic the air intake grille can be mounted in a gable in a doghouse dormer or at the top of a false chimney. Cold air is drawn in from outside through the soffit vents or roof.

The attic fan kept my house cooler by 8f compared to pre fan installation days. Theory behind attic fans is they work on the principle of drawing hot air out of the attic and pushing it outside through the gable or roof levels. Gable fans fit into the gable vent and can be set to operate only within a preset temperature range. Additionally an improperly ventilated attic can lead to a buildup of moisture which can wreak havoc on drywall insulation and even structural components like joists studs and rafters.

In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

For instance when the temperatures outside begin to dip air can leak around ceiling light fixtures exhaust fans and attic access panels. Having an attic gable fan helps regulate the moisture levels and temperatures in your attic. Because heat rises it tends to make attics the hottest part of the house. This then brings moisture from the inside of your house into the attic area.

Temp 92 f at 5pm. Just relying on your gable vents to cool your attic is a big ask as this will only work optimally when you have a cross breeze blowing towards one side of your roof blowing the hot air out the other side. These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home. Intake vents located at the lowest part of the roof under.

Damper leakage is minimal at 25 pascals it s about 1 4 of total fan flow. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference. An attic gable fan is one way to help with the circulation of air in the attic. After attic fan installation ac still off during day.

The plain and simple answer is yes. Attic ventilation fans also tend to be quite energy efficient in terms of their own operation. In simple terms it replaces the hot air in the attic with fresh air from outside.