Attic Fans Do They Help

If you want your home air conditioner to cool you.

Attic fans do they help.

A mechanical fan working in an attic space equipped with adequate ventilation openings can move hot air out and increase the flow of air through the attic. Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic. Attic fans are critical because they are designed to cool off the attic providing relief to the unbearable temperatures of your home. 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.

A powered attic ventilator has a different purpose. Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor. How an attic fan works. The problem with this design as argued by energy professionals is that attic fans also pull the conditioned air from your home into the attic.

It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with outdoor air. Note that they do not push air in the house but draw fresh air into the attic enabling your house to cool almost instantly. Intake vents located at the lowest part of the roof under. Ideally this will lower the high temperatures that have built up in your attic.

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. The most significant benefit of solar attic fans is that they operate using renewable energy from the sun instead of being hooked up to your electrical grid. This allows it to improve your hvac efficiency and protect your roof shingles plus the structural integrity of your attic. This air is then exhausted through the fan to the outside.

Attic fans exhaust hot air from your attic to the outside. When you compare the capital expense of this product to the ongoing bills you would pay to operate the unit you ll come out ahead every time. Much of that heat then conducts downward and finds its way into the house. The attic fans just pull air through a hot attic space in an effort to reduce the infrared heat gain you feel through the ceiling of your home.

Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Attic fans perform best when your attic is properly sealed and insulated to block the entry of heat and moist air. So much more than just ventilation.