Flashing’s a pain to install, sure, but it’s saved my bacon more than once.
I hear you on the flashing. Every time I try to save a few bucks or hours with deck mounts, I end up regretting it when the next big storm rolls through. Had one tenant call me about a “mysterious drip” in their living room—yep, deck mount seal had given up after just two winters. Flashing’s annoying, but at least I sleep better when the forecast says “torrential.” If you’re not up for annual roof yoga, flashing is probably worth the hassle.
I’ve seen a lot of deck-mounted seals fail after a couple of years, especially in areas with heavy wind-driven rain. One job stands out—brand new install, everything looked tight, but after a spring storm, water found its way in right along the mounts. The repair ended up costing more than if we’d just done proper flashing from the start. It’s more work upfront, but I’d rather deal with that than chase leaks every season. Deck mounts might be fine in milder climates, but anywhere storms are common, flashing just holds up better in my experience.
I get where you’re coming from—leaks are a nightmare, and I’ve seen my fair share of them after storms. But I’ve actually had some good luck with the newer deck-mounted seals, especially on low-slope roofs where traditional flashing can be tricky to install right. The key for me has been making sure the sealant is compatible with both the roof material and the mount, and then double-checking everything after the first big rain.
One thing I noticed: a lot of failures seem to happen when installers rush or skip the manufacturer’s prep steps. If you really follow those instructions—clean surfaces, use the right torque, let things cure—it can hold up surprisingly well. That said, I do agree that in places with crazy wind-driven rain (I’m thinking coastal areas), nothing beats a properly installed flashing system for peace of mind.
But for folks in drier climates or on newer roofs, deck mounts might save time and money without much risk. Just gotta weigh the trade-offs and maybe check in on them every year or two... leaks have a way of sneaking up on you.
I’ve seen those deck-mounted seals hold up, but I’m still cautious. After a few hurricanes down here, I’ve had to deal with some nasty surprises—sealant that looked fine for a year, then just gave out under heavy wind-driven rain. You’re right though, installer error is a huge factor. The prep work and following the manufacturer’s steps are non-negotiable. For me, if the roof is older or the area gets wild storms, I’d still lean toward traditional flashing. On newer roofs or in milder spots, deck mounts can make sense... just gotta keep an eye on them.
I hear you on the hurricanes—down here, I’ve seen deck seals that looked perfect until a sideways rain found the tiniest gap. My step-by-step: if your roof’s got some years on it or you’re in a storm zone, I’d still go with flashing. For newer roofs, deck mounts are tempting, but I’d double-check the install and maybe even do a water test before calling it good. Sometimes the “easy” option just means more headaches later...