How Often Should Attic Fan Last

A fan may be installed in an attic for the different purpose of cooling a whole house venting hot air out via the attic.

How often should attic fan last.

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. Attic fans are typically used in warmer months when temperatures in an attic can exceed 120 f 49 c. Attic fans are designed and installed to switch on via a thermometer when the temperature in a house reaches a certain point. Because of the attic s location it is always a hotter part of the house.

Such fans are often called whole house fans. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. If you have an older home chances are the attic insulation is the same insulation that was installed when the house was built. Static vents often protrude from roofline thanks to special covers intended to keep all precipitation rain sleet hail and snow from entering the attic.

The downside of attic ventilation fans. How an attic fan works. I think that the difference is due to the hotter attic temperatures in the south which increase the shingle temperatures. Insulation should also be replaced in some cases sooner than 15 years if it is no longer doing its job properly.

However the utility of attic ventilation fans is actually quite a controversial topic. Standard insulation starts to degrade and start peeling from walls after about 15 years. An attic fan doesn t require annual maintenance. Homeowners can choose from a variety.

You ll know it needs to be replaced if there are insulation leaks or if it is peeling from the walls. Attic temperatures and roof lifetimes standard asphalt shingle roofs is northern vermont where martin holladay lives last 30 or more years while roofs in south texas last about 15 to 18 years. 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. Mechanical attic ventilation fans may be powered in a variety of.

Most fans cannot keep up. Attic fans exhaust hot air from your attic to the outside. Good insulation reduces fan effectiveness.