I hear you on the three-tabs—mine are holding up okay so far, but I’ve definitely had to nail a couple back down after a windy night. The solar fan install wasn’t too bad, but yeah, the shingles felt flimsy when I had to lift them. I used a ton of sealant just to be safe. My attic’s definitely cooler now, but I’m not sure it’s made a huge dent in my bills. Did you look into ridge vents at all before going with the fan? I keep wondering if that would’ve been less hassle.
I get what you mean about the shingles—mine are the cheap three-tabs too, and they really don’t inspire much confidence when you’re prying them up. I had a similar moment of “is this really a good idea?” when I was cutting the hole for my fan. I went with the solar fan because I figured it’d be less work than messing with a ridge vent, but honestly, now I’m not so sure. Ridge vents seem like they’d be more of a set-it-and-forget-it thing, and maybe less risk of leaks if you do it right.
The attic is definitely cooler now, but like you said, I haven’t noticed any huge drop in my electric bill either. Maybe it’s just not enough airflow? Or maybe my insulation is the real problem. Did you ever think about just adding more insulation instead of messing with the ventilation? I keep wondering if that would’ve been a better use of time and money...
I’ve wondered the same thing about insulation—my attic had that old, patchy blown-in stuff from the ‘80s and I always suspected it was letting a lot of heat through. I actually tried topping it up before messing with any fans, but honestly, it was a sweaty, itchy mess and didn’t make a dramatic difference in the bills either. Maybe it’s just my house (built in ‘79, not exactly airtight). Did you check if your soffit vents are clear? I found mine were half-blocked with old insulation and dust, which probably wasn’t helping airflow at all. Sometimes I think all these little upgrades add up, but never as much as you hope.
That’s interesting—my place is from the late ‘70s too, and I’ve been wondering if it’s just the age of the house that makes all these upgrades feel like a drop in the bucket. I haven’t checked the soffit vents yet, but now I’m thinking I should. Did you notice any difference in attic temps after clearing yours out, or was it more of a “nice to know it’s done” kind of thing? I keep hearing mixed things about whether attic fans actually help if the rest of the attic isn’t sealed up tight.
Clearing out the soffit vents made a bigger difference than I expected, honestly. Before that, the attic felt like a sauna by mid-afternoon, and after cleaning them up, temps dropped maybe 10 degrees on the hottest days. Not exactly “cool,” but enough to notice less strain on the AC. Still, I wouldn’t say it fixed everything—insulation’s still patchy in spots.
About attic fans, I’ve seen mixed results too. In my experience, if you don’t have good airflow from the soffits up through the ridge or gable vents, the fan just pulls conditioned air from inside the house instead of actually venting heat out. Have you checked if your insulation is blocking any of your soffit vents? That’s tripped up a few people I know—looked fine from outside but was packed with old insulation inside.
Curious if you’ve had any issues with humidity or condensation in your attic? Sometimes all this venting talk overlooks moisture problems, which can be just as bad as heat...
