If you are referring to an "attic ventilator" - a fan in the roof - you may want to do some google searches on their effectiveness. The research indicates that most heat transfer in the attic is via longwave radiation from the underside of the roof sheathing and attic ventilators don't address that. In addition, they create a slight vacuum in the attic and conditioned air from the house may be drawn up into the attic - an undesirable situation. One (or more) of the DOE labs have looked into this.
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Originally Posted by mic4me
Looking to purchase a solar attic fan to help cool down the garage and house. I am looking at Elite and Solar Guys. Has anyone had any experiences with either of these companies? Or, are there other recommendations for fans? Thanks in advance.
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