How Often Should Attic Fan Last

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 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. I think that the difference is due to the hotter attic temperatures in the south which increase the shingle temperatures.

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An attic fan doesn t require annual maintenance.

How often should attic fan last.

Static vents often protrude from roofline thanks to special covers intended to keep all precipitation rain sleet hail and snow from entering the attic. Standard insulation starts to degrade and start peeling from walls after about 15 years. Good insulation reduces fan effectiveness. 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.

The downside of attic ventilation fans. You ll know it needs to be replaced if there are insulation leaks or if it is peeling from the walls. Insulation should also be replaced in some cases sooner than 15 years if it is no longer doing its job properly. If you have an older home chances are the attic insulation is the same insulation that was installed when the house was built.

Because of the attic s location it is always a hotter part of the house. A fan may be installed in an attic for the different purpose of cooling a whole house venting hot air out via the attic. However the utility of attic ventilation fans is actually quite a controversial topic. Such fans are often called whole house fans.

Attic fans are typically used in warmer months when temperatures in an attic can exceed 120 f 49 c. Most fans cannot keep up. Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

Attic fans are designed and installed to switch on via a thermometer when the temperature in a house reaches a certain point. Homeowners can choose from a variety. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. With an attic fan that switches on appropriately when the attic reaches a specific degree somewhere between 105 120 degrees fahrenheit it.

Mechanical attic ventilation fans may be powered in a variety of. How an attic fan works. Attic fans exhaust hot air from your attic to the outside.

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