Do Turbine Attic Fans Work

Whirlybird roof turbines vents you know those funny spinning things you see up on the roof tops.

Do turbine attic fans work.

Unlike turbines this venting style does not have any moving parts. Ridge vent must me installed per the manufactures instructions. A ridge vent runs across the top of the roof s peak. More than 50 of the attic fans i see do not work and have current still live to the motor.

A turbine is installed directly on the top of a roof and uses wind power to suck hot and humid air out of the attic. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. But the question our customers often ask is do they really work. When exploring the best attic ventilation practices consider installing an attic ventilation fan to keep the hot air from settling in.

Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. The last thing you want to do is stuff insulation in the vents. Attic fans exhaust hot air from your attic to the outside. Most fans cannot keep up.

Air movement in the attic helps prevent moisture buildup on rafters and on the bottom of roofing materials. The answer is yes they really do. It does this 365 7 24. 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.

How does an attic fan work. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. A turbine has a series of vanes that spin as wind passes through them. Best ventilation is open soffit venting to a open vented ridge vent.

These are very common to see on older roofs. 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. How an attic fan works. Water vapor from the inside of a home drifts up and into an attic space.

An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. These can be ridge vents wind turbines or the flat vents your roofer wants to install. Attic must have 5 sq. Passive vents work for free and in almost all instances are silent.

Good attic ventilation is important for preventing ice dams in the winter. Do not use mechanical means electric attic fans. Most residential homes have some type of attic ventilation. Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.