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Choosing between attic fan setups: roof or gable mount?

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dennisvolunteer
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(@dennisvolunteer)
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I totally get the hesitation about cutting into the roof—my neighbor did a “quick” install and now calls his attic the indoor pool. I went with a gable mount fan for that exact reason. It’s not as sleek, but at least I’m not stressing every time it rains. As for cooling, I noticed the attic drops a few degrees faster after sunset, but it’s not like walking into a fridge or anything. Humidity’s still a beast here in Georgia, so I’m keeping an eye out for any weird moisture stuff... fingers crossed.


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beare98
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Honestly, I think you made the right call with the gable mount, especially in Georgia where humidity is relentless. I’ve seen too many folks cut corners with roof fans—either they don’t flash them right or use cheap sealant, and then you’re dealing with leaks that cost way more to fix than any energy savings you might get. I know the gable setup isn’t as “invisible,” but function beats form when it comes to keeping water out.

I’ve got a similar setup and yeah, it’s not like stepping into an air-conditioned attic, but it does help take the edge off after sunset. The humidity’s always going to be a battle down here, no matter what fan you use. I added a cheap hygrometer up there just to keep tabs on things—worth every penny for peace of mind.

If you ever do decide to upgrade, maybe look at adding more soffit vents or even a solar-powered gable fan. But honestly, avoiding roof penetrations is smart unless you really trust your roofer... or want to practice your patching skills.


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Posts: 15
(@dennisc54)
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Couldn’t agree more about avoiding roof penetrations unless you’re really confident in the install. I’ve seen too many “quick fixes” turn into long-term headaches, especially after a heavy rain. Gable fans might not win any beauty contests, but they just work. Adding soffit vents made a noticeable difference for me—worth considering if you ever want to tweak things down the line.


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(@tigger_scott)
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- Gotta admit, I’m always a little suspicious of anything that means cutting more holes in a roof. Seen too many “waterproof” jobs turn into indoor waterfalls after a storm.
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Gable fans might not win any beauty contests, but they just work.
— Yeah, they’re not exactly the prom queen, but at least you don’t have to worry about leaks every time it rains sideways.
- Soffit vents are underrated. Helped my attic breathe way better, and honestly, didn’t cost much or take long to add. Not glamorous, but who’s looking up there anyway?
- Only thing is, gable fans can be kinda noisy if you get a cheap one. Had one that sounded like a lawnmower starting up every time it kicked on… neighbors probably thought I was running a secret workshop.
- Roof fans look cleaner from the outside, but unless you trust your flashing skills (or your roofer’s), it’s just another spot for water to sneak in. Especially if your shingles are getting old or you live somewhere with wild weather swings.
- If I had to pick, I’d go gable + soffit combo again. Not perfect, but less drama when the rain hits.


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Posts: 19
(@leadership_brian)
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Roof fans look cleaner from the outside, but unless you trust your flashing skills (or your roofer’s), it’s just another spot for water to sneak in.

This right here sums up my main issue with roof fans. I had a roofer “guarantee” his flashing work—two years later, I was patching leaks myself. Gable fans aren’t glamorous, but at least I’m not stressing every time the forecast calls for heavy rain. If noise is a problem, spending a bit more on a quieter model is worth it.


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