Why Attic Fans Are Bad

If an attic fan is properly installed it will act as an air circulator.

Why attic fans are bad.

Most attic fans have thermostats that regulate the air cycles. Attic fans exhaust hot air from your attic to the outside. The downside of attic ventilation fans. Good insulation reduces fan effectiveness.

Pulling hot air out of the attic and cool air into the attic. And since the roof must be penetrated for some attic fan installations there is concern about that it may lead to water damage. However the utility of attic ventilation fans is actually quite a controversial topic. Most homeowner s will find that the overall cost of an attic fan and the thermostat regulator is much less expensive than subsequent air conditioning bills in the summer months.

With the summer season upon us now is a good time to review an uncomfortable topic. In short are attic fans good or bad. 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 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.

If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working. 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. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. 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.

Those fans are good while they are running but the other 95 of the time when they are off or during winter time they are essentially a hole into the attic which can defeat the purpose of all of your attic insulation. Let s discuss the primary concern homeowners have about attic fan installation. A very hot problem last week we had some warm weather for the first t. Hot attics and why traditional exhaust fans don t work well enough to cool them off.

Why attic fans don t work well and what to do instead.