Why Attic Fans Are Bad

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

Why attic fans are bad.

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. Your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection. A very hot problem last week we had some warm weather for the first t. Attic fans exhaust hot air from your attic to the outside.

How an attic fan works. However the utility of attic ventilation fans is actually quite a controversial topic. Why attic fans don t work well and what to do instead. 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.

And since the roof must be penetrated for some attic fan installations there is concern about that it may lead to water damage. In fact that whole house fan will look like a bbq during the summertime with the use of a thermal camera as pictured above. Good insulation reduces fan effectiveness. Pulling hot air out of the attic and cool air into the attic.

In short are attic fans good or bad. If an attic fan is properly installed it will act as an air circulator. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. 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.

Most attic fans have thermostats that regulate the air cycles. Hot attics and why traditional exhaust fans don t work well enough to cool them off. 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. 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.

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.