Are Attic Fans Necessary With Central Air

Rooftop fans and gable fans.

Are attic fans necessary with central air.

It also requires no assembly. If installed anyway they won t work properly. Now if you did have central air conditioning i would tell you not to install an attic fan and here s why. Powered attic ventilators are housed in the.

Oh an attic fan will do that. By installing more roof vents such as a ridge vent you increase the possibility that most attic air will come from outside says tim carter a residential contractor in cincinnati. Some homes cannot accommodate the amount of attic ventilation that the older traditional style whole house fans require. If you have few vents in your attic most of the air will be drawn from inside the house.

Intake vents located at the lowest part of the roof under the eaves allow cool. Quietcool attic fans work almost everywhere almost anytime. The ventilation that controls moisture from condensation and regulates the temperature in your attic relies on air circulation. But you can install attic fans which will continuously replace the stagnant air with fresh outdoor air preventing your attic from turning into an oven.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Even though a manufactured cover costs more it is far easier to install. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. Building codes often require about 1 foot of attic ventilation for every 750 cfm airflow.

Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Because typically attic fans are so strong that not only do they take the hot air out of the attic but they reach down into your house and take the cool air out of the house as well. In a properly designed passive system air enters through the soffit. A fan may actually suck air conditioned air from your home into the attic.

The attic coffin you mention which is used to air seal and insulate pull down stairs scuttle hole or a whole house fan is good in theory but in practice is cumbersome to install. Ventilation fans or powered attic ventilators are designed to cool the attic pushing out the hot attic air and rushing in a flow of cool outside air.