Yeah, those miracle tapes and "roof in a can" sealants look great on the shelf, but they’re really just buying you some time—sometimes not even much of that. I’ve patched more than a few leaks for neighbors after a storm, and on an old shingle roof, it’s like trying to plug a boat with chewing gum. Might hold through one rain, but if you’ve got curling or missing granules, water’s gonna find its way under no matter how much goop you slap on.
Flat roofs are a different story. Had a buddy use that peel-and-stick stuff on his garage membrane and it held up surprisingly well for about six months… until the squirrels started using it as their personal slip-n-slide. But yeah, if your shingles are shot, best case is you stop the drip for a week or two while you line up real repairs.
I get why folks want quick fixes—nobody wants buckets in the hallway—but sometimes it’s just delaying the inevitable. Been there myself. Got caught once in a summer downpour with nothing but duct tape and an old tarp… let’s just say it wasn’t my proudest moment.
- Been there with the “miracle” patches—used a can of that spray stuff on my dad’s old shed roof last year.
- Held up for maybe two storms, then started leaking again where the shingles were curling.
- Tarp and bricks actually worked better in a pinch, though it looked pretty rough from the street.
- I think if you’ve got a newer roof and just a small hole, the tape or sealant might buy you a few days.
- Once the shingles start breaking down, nothing really sticks for long... learned that the hard way.
- Guess it’s better than nothing if you’re waiting on a roofer, but yeah, definitely not a long-term fix.
Spray sealants are like duct tape for roofs—might hold for a bit, but you’re gambling if you trust them through a real downpour. I’ve seen folks slap on that “miracle” stuff and then end up with buckets in the living room anyway. Honestly, tarps may be ugly but they’re usually your best bet for a night or two, especially if you’ve got curling or brittle shingles. Once those start going, nothing sticks. Seen it a hundred times… Fix it right when you can, but yeah—sometimes you just gotta MacGyver it until help arrives.
Spray sealants are like duct tape for roofs—might hold for a bit, but you’re gambling if you trust them through a real downpour.
Yeah, I’ve gotta agree with this. I’ve watched tenants try all kinds of “as seen on TV” spray stuff when they spot a drip, and it’s almost never a long-term fix. Maybe buys you a couple hours if the rain’s light, but once the water really starts coming down, it just finds another path in.
Tarps are ugly as sin, but honestly? They’re the only thing I’ve seen actually keep water out overnight—especially if you get them tight and weighted down around the edges. I’ve had to tarp over everything from old asphalt shingles to flat rolled roofs after windstorms. The trick is making sure water can’t sneak under at the top edge... otherwise you’re basically funneling rain right into your attic.
One thing I don’t see mentioned much: plastic sheeting inside the attic or crawlspace. Not pretty, but if water’s already getting in and you can’t get up on the roof (or it’s just not safe), tacking up heavy plastic over insulation or ceiling joists can keep things from getting totally soaked below. It won’t stop the leak, but sometimes it’ll save your drywall or floors until someone can patch things properly.
I do wonder if anyone’s had luck with those peel-and-stick roof patches? I tried one once on a small flat-roof tear and it held for maybe a week before peeling up at the corners. Maybe better results in dry climates? Here in the Midwest, between wind and humidity, nothing seems to last unless it’s nailed or screwed down.
Curious what folks use for temporary fixes on metal roofs too—tarps tend to slide right off unless you anchor them really well. Anyone found something that actually grips?
End of the day, like you said: “Fix it right when you can.” But yeah... sometimes you just need to keep the rain out long enough to call in backup.
Peel-and-stick patches are hit or miss in my experience—humidity and temperature swings here in the Midwest really mess with the adhesive. For metal roofs, I’ve had better luck using magnetic tarps or even just sandwiching the tarp edges under 2x4s weighted down with bricks. Not pretty, but it’ll usually hold through a storm. Plastic sheeting inside is underrated, though—saved a client’s hardwood floors once when we couldn’t get up on a steep roof during an ice storm.