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How To Save On Your Electricity Bills With Solar Attic Vents and Whirlybird Vents

Whirlybird roof vent photo.

A Whirlybird Roof Vent On A Metal Roof. Whirly Bird Vents Come In A Variety Of Colors


Do whirlybird vents work? The answer is yes, especially when there is a breeze blowing. When there is no wind blowing they are still effective as a roof vent that allows hot air to escape. As hot air escapes the blades will turn even with no breeze, although this does not remove any more air.


Whirlybird vents or turbine roof vents have been around for years and have been proven to work. The way they work is when there is a breeze blowing the

turbine turns and creates a suction that can remove as much as 300 cubic feet of air per minute. Their popularity is also due to the fact that they do not require any energy to operate. While it is true they will turn due to hot air rising out of the attic this is not the principle by which they work. Because the technology is proven and thanks to newer units that have sealed bearings they will be around for a long time to come. If you live in a hot climate, having several whirlybird roof vents can save hundreds of dollars in cooling cost by keeping your attic cooler.

 Sealed bearing whirlybird roof vents will provide years of energy savings. When buying a whirlybird turbine vent make sure it has sealed bearings, not ones you have to grease.

Does Rain Come In Through Turbine Roof Vents?

You don't have to worry about rain coming in your attic with a whirlybird vent. When the turbine is spinning raindrops are deflected off of the spinning surface, keeping your attic nice and dry. Even when the turbine is not being turned by the wind it gives one more exit point for hot air from your attic. Roof vents of any kind work best when there is adequate ventilation along the eaves such a continuous soffit vents.

How To Install A Whirlybird Roof Vent

Installing a whirlybird vent in a roof with composition shingles is fairly easy. Most whirly bird vent kits come with a template. You peel back a row of shingles and use the template to cut a hole in the decking for hot air to escape. Take care to cut the hole between rafters and avoid any electrical wires below. A sawzall works well. Then you replace the shingles around the whirlybird vent and seal with tar. Installing a whirlybird vent in a metal roof is more difficult. You may want to have a roofer do it.


Solar Roof Vents

The latest technology for cooling your attic and saving on air-conditioning costs are solar powered roof and gable vents. These can move as much as 800 cubic feet of air per minute. This is not as much as 120 volt wired in units but the plus is that they do not use any energy nor require any new wiring.

Solar roof vents are fairly easy to install on a shingle roof. It involves cutting a hole the size of the template that is included and peeling back a layer of shingles and screwing down the base plate of the fan to your plywood decking with wood screws.

You then replace the shingles and  tack them down and seal them with roofing tar.

You can easily cut your heating bills by thirty percent or more by cooling down your hot attic. If you do not have any kind of attic ventilation and live in a hot  climate then either one of these two devices can quickly pay for themselves in as little as a single season.

Solar vents sell at Home Depot for around $175 for a model with a long life brushless motor.

Whirlybird vents sell for around $50.




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