Attic Fan Basics

Attic ventilation should be very simple.

Attic fan basics.

You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. The attic fan has a flashing that fits in with the shingles and is water proof. It goes on and off automatically with a thermostat so it only runs when it is beneficial. As the attic space warms up from the irradiation of the sun the ventilation port opens wider to allow the solar fan to move more warm stale air out of the attic area.

How to test an attic fan motor and thermostat. Attic ventilation serves two main functions. Solar attic fans do just that. Test the wires to ensure the power is off.

When working with electricity always. Designed for attic spaces up to 2 088 square feet master flow s unit can remove a large volume of hot air at a rate of 1 500 cfm. Most solar attic fans are surface mounted meaning that they are installed directly through the roof surface where they are most efficient. Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming.

Installing an attic fan step 1. A fan that won t run is often caused by a failed motor or a bad thermostat. A powered attic ventilator or attic fan is a ventilation fan which regulates the heat level of a building s attic by exhausting hot air. Installing the shutter if the existing gable vent is smaller than the diameter of the fan you ll need to remove.

Turn off electricity at the main fuse box or circuit breaker box that controls the power to the fixture or the room you re working on. An attic fan can be gable mounted or roof mounted. Intake vents located at the lowest part of the roof under the eaves allow cool. Roof mounted attic fans require a vent hold near the top of the roof where the fan can sit over the vent on a plastic or metal base.

To lower attic temperatures and to remove excess moisture. You have holes in the bottom of your attic usually soffit vents and holes in the top of your attic ridge vent wind turbines static vents or power fans. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. An attic fan installed underneath a roof.

The attic fan is normally mounted up on the roof of the home toward the back about two feet down from the peak. Ideally air comes in the bottom and out the top. We like master flow s model for its easy installation and efficiency.