Yeah, swapping boots every year seems like overkill to me too. I’m in the Midwest as well, and my roof’s pushing 18 years. I just check things over every spring and after big storms—usually it’s just a bit of cracked caulk or a loose nail, nothing major. Tried that eco silicone once, and honestly, it’s held up better than I expected, but I still keep a tube of the old black stuff around just in case. Unless you’re seeing real damage, I’d say save your cash and just keep an eye out for trouble spots.
I get where you’re coming from, and I definitely agree that swapping boots every year is probably overkill for most roofs. Still, I ran into a weird issue last winter that made me rethink just waiting for obvious signs of damage. I’m also in the Midwest, and we had a stretch of freeze-thaw cycles that must’ve been rough on my vent boots. Didn’t notice anything during my usual spring check, but by the time summer storms rolled in, water had started seeping in behind the flashing. Ended up with a small patch of ceiling damage before I caught it.
Unless you’re seeing real damage, I’d say save your cash and just keep an eye out for trouble spots.
That’s solid advice for sure, but I’d add—don’t just watch for cracks or loose nails. If your boots are older (mine were original to the house, about 14 years), it might be worth proactively swapping them before they fail, especially if you’ve got a low-slope roof or tricky weather swings. The silicone sealant helps, but it can hide deterioration underneath. Just my two cents... sometimes a little preventive work saves a bigger headache down the line.
I get the urge to swap them out early, especially after a leak, but honestly, most vent boots are designed to last at least 10-15 years—sometimes longer if you’re not getting direct sun all day. Midwest freeze-thaw is brutal, but I’d argue regular, thorough inspections (lifting the boot edge, checking for soft spots) catch most issues before they turn into leaks. Full replacement every decade or so is usually enough unless you’re seeing clear signs of UV cracking or the rubber’s gone brittle. Silicone can definitely mask problems, though... I’ve seen it hide splits until water’s already inside.
I’ve seen more vent boot failures after hail than from age, honestly. Folks think it’s just the shingles that take a beating, but those rubber boots get pitted and start cracking way sooner if you’ve had a couple nasty storms roll through. Ever had one split right at the seam after a big hail event? I’m curious if anyone’s tried those all-metal retrofit collars—do they actually hold up better in the long run, or just delay the inevitable?
Ever had one split right at the seam after a big hail event?
Yeah, I’ve seen that a bunch—especially on roofs that are only a few years old but got hammered by golf-ball hail. The rubber just doesn’t stand a chance. I’ve put on those all-metal retrofit collars for folks who didn’t want to yank the whole boot, and honestly, they do buy you time. They’re not a forever fix, but they’ll outlast the rubber by a mile if you get another storm. If you’re in a spot that gets regular hail, it’s worth it just to avoid leaks between full replacements.