Q&A About Solar Attic Fans
- Where do I position my solar attic fan on my roof?
Answer: The best place is on a sunny spot facing south, preferably about 2 ft. from the ridge of your roof.
- What if my roof doesn’t face south?
Answer: Our solar panel is adjustable to tilt toward the sun, as long as you place it in a sunny spot that faces somewhat south.
- What if the sunny spot on my roof is not in a good place for the vent?
Answer: See if the solar gable fan will work for you. You can place your solar panel on your roof, and a 10’ adaptor cord will reach to your gable vent.
- What if I already have attic venting?
Answer: If you have a ridge vent, the solar attic fan is not for you! If you have other types of roof and gable vents, the solar attic fan will help them cool your roof and attic in hot weather.
- Why shouldn’t I get a solar attic fan if I have a ridge vent?
Answer: The solar attic fan will cycle air in and out through your ridge vent without effectively pulling the heat and humidity out of your attic.
- What about my roof rafters?
Answer: Roof rafters are generally 16” or 24” apart. If your rafters are 16” apart, center the unit over a rafter, and the air will flow around the rafter. If your rafters are 24” apart, center the unit between your rafters. Don’t ever cut your rafters!
- Should I let the solar attic fan work in cold winter weather?
Answer: For energy efficiency we strongly recommend buying a thermal switch for a few dollars more. This way the solar attic fan will only be powered in hot weather, and you will not lose heat in the wintertime.
- What if I have a tiled roof?
Answer: No problem, Natural Light makes special skirting and flashing for your tiled roof.
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