Electric Attic Ventilation Fan Problems

On one hand the national renewable energy laboratory said attic ventilation reduces attic temperature 10 to 25 degrees and slows the transfer of heat into the living space.

Electric attic ventilation fan problems.

However the utility of attic ventilation fans is actually quite a controversial topic. Iliving 800 cfm shutter exhaust fan at amazon this fan can easily remove excess heat moisture and odor from any space up to 1 200 square feet. I had a client whose wife didn t care for the sensation caused by ceiling fans. Good insulation reduces fan effectiveness.

Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. Common attic fan problems and how to fix them. Sealed attics trap excessive heat and moisture which can lead to reduced shingle life. Attic fan not turning on if the attic fan isn t turning on it could be an electrical issue a problem with the.

Little or no airflow. We think of ceiling fans in terms of evaporative cooling of the skin. If the motor is working but the fan blades are not moving the problem may be the belt. If there is any damage to the belt replace it with a new one.

Most fans cannot keep up. Quietcool smart 2830 cfm power gable mount attic fan at amazon this model is our top pick for its ease of use simple installation and maximum energy efficiency best budget. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. Turbine fans have angled slits cut into a capped cylinder which create a continuous fan blade.

Roof vents create an additional roof penetration essentially another place of vulnerability where leaks can occur. However a ceiling fan in a room with attic exposure also acts to disrupt the air film reducing it s r value which brings ceiling temperature closer to room ambient. Fan motor runs but the blades don t move sometimes you face an issue where the attic fan s motor comes on but the fan. The result is a cooler attic space with plenty of air exchange.

Fan problems even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat. The science behind attic ventilation however is sound.