Ridge Vents vs turbines and power vent

Good turbines are usually much better than ridge vents

If your roof has relatively long ridge lines, as is often the case on gable roofs, then ridge vents are very effective and might be preferred, but if the ridge lines as you might see on some hip roofs are relatively short then turbines might be the better option.

My hip roof house has ridge vents but my ridge lines are relatively long. The neighbor behind me has a ridge vent on the wing of his house that has a long ridge line, but on the main facade of his house where the hip roof ridge line is relatively short he has 2 wind turbines - I thought that was a pretty novel approach.

You definitely want to avoid powered attic ventilators - you likely are pulling some cool air out from your conditioned area inside your house when it operates - you don’t want to pay to air condition your attic. Here’s a article on that LINK

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you don’t want to pay to air condition your attic. Here’s a article on that LINK

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I installed an attic powered gable fan about 5 years ago on my single story ranch. I monitored my attic temps with a wireless bbq thermometer before and after installation. After the powered fan was installed my attic temps dropped 15-20 degrees. My AC bill has been considerably less. My AC used to run continuously all day without shutting off on the very hot days. After the fan was installed my AC could keep up and cycle on and off on the hottest days of the year.

I can't imagine the rpm's of those turbines in hurricane like IDA !!