I get the appeal of overlays, especially when money’s tight. I was in a similar spot a couple years ago—old three-tab shingles, no leaks, but the roof just looked tired. Overlay seemed like a quick win, but I kept wondering about hidden issues. How do you really know there’s no soft spots or sneaky rot without pulling everything up? My neighbor did an overlay and ended up with some weird lumps after a year... turned out there was warped decking underneath that nobody caught.
I’m not saying overlays are always bad—sometimes they’re the only thing that fits the budget. But I do worry about what you might miss under there, especially if you’re in a wetter climate or have an older house. Plus, doesn’t adding another layer make it hotter inside during summer? Maybe that’s just my imagination.
Curious if anyone’s had luck with overlays lasting more than 10 years? Or is it pretty much always a stopgap?
Overlay jobs can be a real mixed bag. I’ve seen a few last 12-15 years, but honestly, that’s more the exception than the rule—especially if the first layer wasn’t in great shape. You’re right about the heat, too. Two layers can trap more warmth, which isn’t just in your head. Around here (Midwest storms galore), overlays tend to hide problems until they’re way worse. If you’re planning to stay put long-term, full tear-off is usually worth it... but yeah, the price tag stings.
If you’re planning to stay put long-term, full tear-off is usually worth it... but yeah, the price tag stings.
Couldn’t agree more—my wallet still gets nervous thinking about the time we did a full tear-off. But honestly, even though I grumbled at the cost, I haven’t regretted it (much). Our old roof had two layers and you could just feel the heat radiating down in the summer. Made the upstairs feel like a sauna with carpeting.
I get why folks go for an overlay—cheaper, faster, less mess—but after seeing what was hiding under our first layer (think: mystery stains and some sketchy plywood), I’m glad we ripped it all off. Especially with Midwest weather—one good hailstorm and you want to know exactly what’s up there.
Not saying overlays are always bad, but if you’re planning to stick around, tearing it down to the bones gives some peace of mind. Plus, you only have to listen to the roofers stomping around once instead of twice... silver linings, right?
I get where you’re coming from—full tear-off does give you a clean slate, and you’re right about the peace of mind. But I’ve seen overlays work out just fine in certain cases, especially when the first layer is still in decent shape and there’s no major water damage or rot underneath. Not every roof with two layers is a disaster waiting to happen.
One thing folks don’t always realize: overlays can actually help insulate a bit more, which might sound weird given your sauna experience upstairs, but it really depends on attic ventilation and insulation too. If the old shingles are lying flat and there’s no soft decking, sometimes an overlay makes sense for the budget—especially if you’re not planning to be in the house for 20+ years.
I’d just say it’s worth having someone check for soft spots or signs of leaks before deciding. And yeah, Midwest hail is brutal... but even with a tear-off, if you don’t address attic airflow or insulation, you’ll still get that heat buildup. Sometimes it’s not just what’s on top, but what’s underneath and around it that matters most.
That’s a good point about attic airflow—sometimes people focus so much on the shingles, they forget what’s going on underneath. Have you ever run into issues with local code limiting overlays? Around here, two layers is the max, but I’ve seen some older homes with three.
