Blow Hot Air Out Of Attic

It is placed at the highest point of your roof so that the hot air rises to get out.

Blow hot air out of attic.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. This type of vent runs along the entire ridge of your roof. Newer attic fans have insulated doors that close in 30 seconds when the fan s not operating. 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.

However for best results you must have sufficient vents to allow for the free airflow. If the temperature outside is cooler than the temperature inside the room face the fan in the window so that it blows air in which can usually be done at night and in the early morning when the air outside is normally cooler. My idea is to vent the build up of hot air that has risen to the ceiling in the hotspot rooms into the attic so that air from cooler parts of the house can move in. Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms.

There are also room to room ventilator fans to move the conditioned air. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. Install electric ventilators and attic fans which remove hot air from an attic. This sends hot air up and out cooling your house and your attic.

A ventilator fan can blow conditioned air up or down depending on the position of the blower unit. This will keep your attic cooler which will reduce the cooling load on your home. Most homes already have some passive attic venting. Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.

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. If you have only one box fan turn the fan in or out of the window in accordance with the outside temperature. However with that understanding that creating negative pressure in the attic can cause all kinds of problems sucking out air from the conditioned space possible back drafting of combustion appliances etc he has come up with the idea to blow air into the attic instead i e creating positive pressure to force the hot air out. 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.

Much of that heat then conducts downward and finds its way into the house.