Attic fans are a solution to improperly designed ventilation. The ideal solution is to add adequate passive ventilation.
I don't like fans because they are power hungry and noisy, and represent a compromise in solutions rather than the ideal.
My house has inadequate intake venting, which I've pointed out multiple times to so-called experts, but none have validated my hunch. I actually put a contingency on the purchase of my house to add intake ventilation, but the morons added exhaust. I didn't want to explain the difference to so-called experts and delay the process, so I let it go.
