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of roof vent location for each 300 sq. ft. of attic location. When it concerns vents, more is better, and every vent installed high up on a roofing system requires a counterpart on the lower roofing system, normally under the eaves in the soffit. With  smartliving home repair services , hot air increasing through the upper vents will pull cooler air into the attic through the soffit vents.

Typical indications of an overly hot attic are asphalt shingles with corners curled up, or bulges in the felt and shingles straight over the joints in the sheathing. On cold winter days, search for frost inside the attic. This frost is caught wetness, which, if not allowed to get away, can rot the entire roofing system.

On hot days, the air motion through these vents is strong enough to pull light seeds from trees and bushes right into the vent screens. Blocked vents will require to be cleared if your new fan is to work appropriately. There are 2 basic attic fan designs: those made for roof installations and those meant to be mounted in a gable wall.

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Simply cut an opening in the roofing system, generally near the peak, and install the fan over the opening. Then shingle above and around the flashing simply as you would for a standard roof vent or plumbing stack. In our case, we selected a gable-wall fan that was somewhat much easier to install because no shingles needed to be interrupted.

We required to expand the opening a little to accommodate a slightly bigger, automatic shutter, but it was still a relatively basic task, requiring no structural changes. If your existing vent is large enough, you might not require to replace it. Simply install the fan straight behind it. We picked a Whisper Cool fan (Design WCGA) made by Specific, Teed (Certain, Teed Ventilation, 3000 W.

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The fan is warranted for 5 years, draws a mere 3. 2 amps and is capable of handling an attic area approximately 1500 sq. ft. Its thermostat is set up in a control box and is prewired. We paid about $40 for the fan, plus about $30 for an Attic Aire automated shutter, also made by Particular, Teed.