Ventilation’s a tricky one too. My installer wanted to use taller standoffs for airflow, but with our snow loads, I didn’t want to risk wind getting under the panels and ripping them off. Sometimes you just have to pick your poison.
That’s exactly where I landed too. I kept reading about how “more space = better airflow = less moisture,” but then you see those crazy winter gusts and start picturing your panels in the neighbor’s yard. It’s like, do I want moss or do I want my roof to stay put? Not a fun choice.
I’m right there with you on the sealant front. I did a ton of research before we signed off on the install, and every horror story was about water sneaking in around brackets or rails because someone got cheap with the flashing or skipped a bead. I’d rather spend an extra afternoon up there than deal with rot inside.
Funny about the zinc strips—I’ve got a buddy who swears by them, but he’s out in Oregon where the rain never lets up. Here in the Midwest, it’s a toss-up if we get enough runoff for them to actually do anything.
Honestly, if your shingles are still holding after all that, you’re doing something right. Zombie apocalypse or not, at least we know where to hide out if it comes to that...
I get the worry about wind and snow, but I actually went with the taller standoffs for my setup. My installer was pretty convincing about the airflow thing—he said even in our winters, it helps keep ice dams from forming under the panels. I was nervous at first (especially after seeing what last January did to my neighbor’s old satellite dish), but so far, nothing’s budged. Maybe luck, or maybe just a solid install? Hard to say.
About the zinc strips—I hear you on the Midwest weather being unpredictable. I tried them mostly out of curiosity and, honestly, haven’t noticed much difference. Moss still pops up here and there. Maybe it’s more of a Pacific Northwest solution.
I will say, though, I’m not sure I trust sealant alone for long-term peace of mind. We had a freak rainstorm right after our panels went up and found a tiny leak near one bracket. Ended up redoing that section with extra flashing just to be safe. Not fun while it lasted, but at least it’s dry now...
I’m not sure I trust sealant alone for long-term peace of mind. We had a freak rainstorm right after our panels went up and found a tiny leak near one bracket.
That’s exactly why I always push for extra flashing, especially with solar installs—sealant just doesn’t cut it in the long haul, especially once you get freeze/thaw cycles. Curious, did your installer use the pre-fab flashing kits or just improvise with what was on hand? I’ve seen both, but the kits seem to hold up better in my experience.
I hear you on the flashing kits, but honestly, I’ve had a few leaks even with the pre-fab stuff—always seems to come down to how careful the crew is.
Sometimes, though, a good sealant touch-up every couple years does the trick if you’re on top of it. I’ve got a building from the 80s that’s still dry, and it’s mostly thanks to regular checkups, not fancy hardware.“sealant just doesn’t cut it in the long haul”
That’s been my experience too—doesn’t matter how fancy the flashing kit is if the install crew’s rushing or just not paying attention to detail. I’ve seen more leaks from sloppy work than from “bad” materials. I do think you’re right about sealant, though. Folks love to bash it, but if you’re actually checking things every couple years and not just slapping it on and forgetting, it can buy you a lot of time.
Had a client with a 70s ranch—original roof lasted almost 30 years, mostly because the owner was borderline obsessive about inspecting every spring and fall. He’d catch the tiniest cracks or loose nails before they turned into real problems. Not everyone’s got that kind of patience, but it really does make a difference.
I will say, though, in my area (lots of wind-driven rain), even the best sealant starts to fail if the flashing isn’t tucked right or there’s a weird roof angle. Sometimes you just can’t beat good old-fashioned craftsmanship... or maybe just a little paranoia about water intrusion.