Solar Attic Fan

Highlights

Keep your attic and roof cooler so that the ceiling below is cooler. Since the sun is more intense on the roof it creates more free solar electricity to run the fan, and some models have an adjustable hinged panel to maximize the angle and performance.

They are easy to install in less than an hour and only require about a 12" hole between the roof rafters, and also help to extend the life of your roof shingles by keeping the whole system cooler.

The ROI Calculation factors in energy savings on heating and cooling. The long term savings on the life of the roof are an additional advantage.

Good to Know: The roof may generate a lot of heat in the daytime, but it is also a way in which heat escapes your home. Consider these tactics to retain more heat in the winter, and to keep your attic cooler.

Radiant Barriers - Hot air rises, so you can use the space between the rafters to guide the air up and out of your house. The radiant barrier tactic involves stapling roll out foil material across the rafters to trap the air in a 'chase' and guide it up to the ridge vent which is required for this installation. The foil membrane also reflect the heat away from the interior of the attic and typically has a small R Value to further help reduce the heat gain.

Proper Ridge and Soffit Ventilation - Use the laws of nature to reduce your energy bills rather than using electricity for a fan. With full length and well functioning ridge and soffit vents, Bernoulli's principle helps you increase the air flow out of your attic. Air and fluid speed increases when moving from a region of higher pressure to a region of lower pressure, so you can literally 'flush' your attic for free at a rate of 1,500 cubic feet per minute with 30 feet of ridge venting, even on a day without much outside wind at all. This approach is far more effective than gable end fans or vents. Many homes have some form of this 'passive' Ridge/Soffit system already built in, but the cost to fix or optimize it is entirely subject to the condition of the home.

Solar Attic Fan - Why not let the sun help cool your attic and extend the life of your roof? Attic fans conveniently fit between rafters and save you money every year

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