How Effective Are Roof Turbines?

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Roof turbines pull heated air through vents, but their effectiveness varies based on many factors.
Roof turbines pull heated air through vents, but their effectiveness varies based on many factors. (Image: turbine 1 image by Udo Ingber from Fotolia.com)

Roof turbines refer to vents composed of metal that extend from the roof line of a residence or commercial building for the purpose of venting attic or upper floor heat. Before installing a roof turbine, carefully weigh its level of efficiency.

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Power

Roof turbines effectively remove heat from upper floor spaces with no power consumption. Roof and ceiling areas can reach temperatures above 120 degrees Fahrenheit, leading conventional fans or other venting devices to consume enormous electrical energy to provide proper cooling. Roof turbines require no electrical power consumption.

Quality

The quality rating of the roof turbine effects the longevity and strength of the device. A roof turbine made of durable metal, such as aluminum alloy, with a cyclone, or hurricane rating offers more effective results than a plastic turbine with a lesser power rating.

Size

Roof turbine size greatly impacts its rate of effectiveness as well. Turbines with smaller diameter vents typically operate at lower wind capacities than larger turbines, or produce less wind speed per hour. This reduces the cubic footage of air per minute (CFM) removed from the upper level area.

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