The purpose of an attic fan is to vent warm air from the house through the attic and replace it with cooler outside air.
Attic vent fan pros and cons.
The attic fans needs to have a minimum amount of makeup air or intake air which is the vent area that the attic fan pulls air from.
Benefits of ventilation in your attic.
Outside air is pulled through roof and soffit 1 vents keeping the attic cooler.
An attic fan is installed in the attic and blows hot air out through a roof level or gable vent.
Attic ventilation fans have pros and cons.
Keeping your home comfortable is expensive both in summer s heat and winter s cold.
Even during the colder months of the year hot air rises to become trapped in this enclosed area.
The best time to run an attic fan therefore is in the evening after the sun sets and ideally when the temperature outside is below 70 f.
Without the presence of a fan and venting an attic may not be as usable as it could be.
That s why the pros and cons of solar attic fans are essential to consider if you want to maximize the use of your home s space.
The pros and cons of attic fans september 09 2019 by.
While they generally help exhaust superheated air from your attic there is a risk they pull air conditioned air from your home.
If there isn t enough venting in the attic for the attic fan to pull air from it will start pulling air from the home s interior through the wall cavities and drywall ceilings.
It s possible to lower the cost of keeping your home comfortable with attic ventilation.
In some cases attic temperatures will soar above 120 degrees fahrenheit.
Attic fans are more energy.