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Why does picking between layering new shingles or ripping everything off have to be so confusing?

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jerryclark816
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I get the frustration. I went through this last year after a hailstorm tore up my roof (asphalt shingles, Midwest winters). I did a ton of research and ended up doing a full tear-off, even though layering was cheaper upfront. My main worry was trapping moisture or missing hidden deck damage—plus, my insurance only covered a full replacement. The patchwork look drives me nuts too, and I didn’t want to risk warranty issues down the line. It hurt to write that check, but at least now I don’t stress every time it rains. Still, I wish there was a less painful option...


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tobyt58
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Tearing off always feels like a gut punch to the wallet, but you nailed it—hidden deck damage is a sneaky culprit, especially after hail. I see so many folks layer new shingles and then kick themselves later when leaks show up from rot they missed underneath. Did you notice any surprises once the old shingles came off? Sometimes it’s just a couple bad boards, sometimes it’s a horror show... Midwest winters don’t mess around. Curious if your contractor found anything unexpected?


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medicine781
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Had a similar situation last year—thought I’d just be swapping out shingles, but once the tear-off started, we found a patch of decking that was basically mulch from years of slow leaks. Midwest freeze-thaw cycles are brutal on old roofs. My contractor said it’s more common than folks realize, especially if there’s been hail. Did you end up replacing any insulation or just the boards? Sometimes the moisture gets trapped and messes with the R-value, too...


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geocacher16
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- Same deal here—thought I’d save by just adding a layer, but once they pulled up the old shingles, two spots of decking were soft as a sponge.
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“patch of decking that was basically mulch from years of slow leaks”
— That’s exactly what mine looked like under the bathroom vent.
- Didn’t replace insulation, but now I’m wondering if I should’ve. Contractor said it “looked fine,” but who really knows what’s going on behind those boards?
- Midwest weather just eats roofs alive. I get wanting to save money, but skipping the tear-off seems risky if there’s any hint of leaks or hail damage.
- Anyone else shocked at how fast costs add up once you start pulling things apart?


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marycosplayer4964
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I’ve been through this dance a couple times now, and every time I think I’ve budgeted enough, something else pops up. Midwest winters are brutal on roofs—ice dams, wind, hail, you name it. I tried the “just add a layer” approach once, thinking it’d save me a few grand, but when they started pulling things up, half the decking near the chimney was basically compost. Ended up replacing more wood than I expected, and the labor costs just kept climbing.

About the insulation—if you didn’t see any obvious water stains or mold, you’re probably fine, but it’s always a gamble. I had a spot above my kitchen where the insulation looked okay from below, but once we opened it up, there was a patch that was damp and starting to smell. Not enough to be a health hazard yet, but definitely not ideal. Sometimes I wonder if contractors just say “looks fine” because they don’t want to deal with the extra work unless it’s glaringly bad.

I get why people want to skip the tear-off, especially with prices these days, but in my experience, you’re just kicking the can down the road if there’s any sign of leaks or storm damage. Plus, layering shingles can void some warranties and make future repairs harder. I know some folks swear by it, but I’m not convinced it’s worth the risk unless your decking is in perfect shape.

Curious if anyone’s tried those synthetic underlayments instead of felt? I’ve heard they’re supposed to be more durable, but I haven’t pulled the trigger yet. Also, has anyone actually seen a big difference in attic temps or moisture after swapping out old insulation during a roof job? I keep hearing mixed things about whether it’s worth the extra cost.


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