Swapping Out Roof Vent Boots With The Seasons - Worth The Hassle?

Yeah, I hear you - patches can definitely turn into a gamble after a harsh winter, especially up north. I’ve had a “good” patch fool me once and it wasn’t pretty when the snow melted. Still, if you’re on top of yearly checks and use high-quality sealant, sometimes it does hold up. Just feels like rolling the dice compared to swapping out the boot, which is a bit more peace of mind for not a ton of cash.

Just feels like rolling the dice compared to swapping out the boot, which is a bit more peace of mind for not a ton of cash.

That’s honestly the way I look at it too. I’ve patched plenty of vent boots over the years, and sometimes you get lucky, but a lot of the time - especially after a rough winter up here - the patch just doesn’t hold up like you hope. The freeze/thaw cycles are brutal on sealants, even the high-end stuff. I’ve seen what looked like a solid patch in October turn into a leaky mess by March.

Swapping out the whole boot isn’t a huge job, and the cost is usually pretty reasonable compared to the headache of chasing leaks later. I get that it can feel like overkill if the patch seems fine, but peace of mind counts for a lot when you’re talking about water getting into your attic or walls. Plus, new boots usually last a good while - most of the ones I’ve put in are still going strong years later.

That said, if someone’s on a tight budget or can’t get up there right away, a careful patch with quality sealant and regular checks can buy you some time. Just wouldn’t bank on it for more than a season or two, especially if your winters are anything like ours. I’ve had homeowners swear by certain brands of sealant, but honestly, nothing beats just replacing the boot if you can swing it.

Funny enough, I had a customer last year who kept patching the same boot every spring. By the third year, he finally let me swap it out and hasn’t had a single drip since. Sometimes it’s just worth doing it right and not having to think about it again for a while.

Has anyone here actually had a patch job last more than a couple winters? I’ve seen folks try everything from roof cement to those rubber sleeves, but the results seem all over the place. I always wonder if climate makes the biggest difference or if it’s just luck of the draw. For those who swap boots, do you usually replace with lead, plastic, or something else? I’ve seen mixed results with each.

In my experience, patch jobs rarely last more than a couple winters, especially up here in the Midwest where freeze-thaw cycles are brutal. Lead boots seem to hold up best for us, though they’re not cheap. Plastic gets brittle fast in the cold. I’ve seen rubber sleeves work okay as a stopgap, but not as a long-term fix. Climate definitely plays a big role - what lasts in Texas won’t survive a Michigan winter.

I’m with you on the Midwest freeze-thaw being brutal - my rubber boot actually cracked in two after one bad February. Ever tried those silicone ones? I’ve heard they’re a bit more flexible in the cold, but I’m not sure if they’re worth the extra cost. Also, does anyone actually swap boots seasonally or is that just asking for trouble (and a lot of ladder time)?