Roof Exhaust Fan Working Principle

Rugged steel base with welded mounting plates allows easy installation.

Roof exhaust fan working principle.

As the air leaves it creates negative pressure behind it sucking in cool air from below into the soffits and creating a self repeating ventilation process. You can set a multi speed fan to a lower speed when noise is a problem. As hot air rises to the top fans push the hot air out and cool down the home by drawing in the fresh air. These roof ventilation fans are weatherproof to ensure long life for outdoor safekeeping.

Rolled venturi surrounds fan within the 18 gauge galvanized steel wind band. 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. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Cold air is drawn in from outside through the soffit vents or roof.

They can help you save a lot of money on your energy bills as you may not have to use air conditioning if the weather isn t too hot. Intake vents located at the lowest part of the roof under. Using your duct system as a whole house fan. All whole house fans should be installed with rubber or felt gaskets to dampen noise.

Attic fans are installed at the roof level of your home to regulate the heat level. In simple terms it replaces the hot air in the attic with fresh air from outside. In general a large capacity fan running at low speed makes less noise than a small fan operating at high speed.