The good and the bad of attic fans by jeff stock owner of elk ridge electric jun 29 2014 jun 29 2014.
Attic fans good or bad.
Attic fans exhaust hot air from your attic to the outside.
And since the roof must be penetrated for some attic fan installations there is concern about that it may lead to water damage.
Many attics are exposed to high humidity levels in both the winter and summer months and.
As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in.
An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.
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 properly install attic fan can reduce your attic temperature by as m.
However the utility of attic ventilation fans is actually quite a controversial topic.
How an attic fan works.
Let s discuss the primary concern homeowners have about attic fan installation.
Powered attic fan with no ac.
More than 50 of the attic fans i.
Are they worth it.
Jun 14 2011.
Attic fans are necessary for keeping your home cooled during summer months and also to help prevent the growth of mold and mildew.
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.
Will they cool the home.
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.
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.
If you have an attic then you already know the answer to this question.
Good insulation reduces fan effectiveness.
I ve found two sites that recommend them if you have no ac and others saying there s almost always a bad idea.
Good roof ventilation can do.
These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home.
Attic fans are installed in order to reduce the heat during summer time in your attic.
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The downside of attic ventilation fans.
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.