Attic Fans Good Or Bad Idea

However the utility of attic ventilation fans is actually quite a controversial topic.

Attic fans good or bad idea.

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. Whole house fans good or bad. 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. Good article describing the best conventional wisdom on these fans.

I like the quote air is stupid it goes wherever it wants. Are they worth it a. In short are attic fans good or bad. If you have installed enough insulation on your attic floor a hot attic won t make your house hot.

The engineer we consulted. There are lots of solar attic fans available with the obvious attraction that they cost nothing to run. There are a number of companies promoting and selling large fans that install in the ceiling of a central location typically that pull in air from the outside and force that air into the attic and out the attic vents. Attic ventilation strategies are attic fans a good idea.

The underpinnings of most are similar to wired fans though the best are designed to make the most use of the solar energy available. Attic fans are necessary for keeping your home cooled during summer months and also to help prevent the growth of mold and mildew. The downside of attic ventilation fans. Good insulation reduces fan effectiveness.

So checking two or three sources will give you a good idea. These fans are sold with the idea they pull bad air out of the attic and it gets replaced with ambient outdoor air. Make sure your whole house fan is insulated and air tight so it doesn t look like this. I can t find a definitive answer as to whether or not powered attic fans are a good idea if you don t have ac or a whole house fan.

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. A well ventilated attic helps to avoid problems with moisture and heat buildup. Every homeowner has been told at some point or another about how important ventilation is to your attic especially by roofing companies and those in the business of selling attic fans. Let s discuss the primary concern homeowners have about attic fan installation.

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. And since the roof must be penetrated for some attic fan installations there is concern about that it may lead to water damage. No they are not worth it.