Are Attic Ventilation Fans Good Idea

Let s discuss the primary concern homeowners have about attic fan installation.

Are attic ventilation fans good idea.

I don t know why so many people are so defensive about power attic ventilators but here are a few of the things they ve said to me in the comments. Quietcool attic fans work almost everywhere almost anytime. However the utility of attic ventilation fans is actually quite a controversial topic. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.

More than 50 of the attic fans i see do not work and have current still live to the motor. 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. Three years ago i wrote an article titled don t let your attic suck power attic ventilators are a bad idea nearly a hundred thousand page views and 93 comments later it s still generating lots of heat. One of the leading causes for fires.

Buy the way my attic area is about 750 800 sf. In short are attic fans good or bad. Many homeowners hear about attic fans installed by friends and neighbors and want to know if an attic fan is a good idea or just a waste of money. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic.

Do not use mechanical means electric attic fans. I was not asking about whole house fans. Best ventilation is open soffit venting to a open vented ridge vent. Good insulation reduces fan effectiveness.

Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. Ridge vent must me installed per the manufactures instructions. But asking if i could use a roof mounted attic power vent fan. The result is a cooler attic space with plenty of air exchange.

And use a set of the shutters like used with whole house fans. I can get a roof mounted power attic vent fan that is 1400 1600 cfm. With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly. The downside of attic ventilation fans.