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finally found an underlayment that lasts—what's your experience?

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traveler453670
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(@traveler453670)
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The packaging says it can handle “up to 60 days exposure,” but I’d take that with a grain of salt... marketing always sounds better than reality.

Yeah, those “60 days” claims always crack me up. I left a scrap of synthetic out behind my garage for a week and it looked like it’d been through a blender. For my main roof, I still stick with felt—cheap, easy, and if it gets trashed, I’m only out a few bucks. If I ever get brave enough to tackle the house roof solo, maybe I’ll try the fancy stuff... but only if the weather app promises me a miracle.


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(@robotics985)
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I hear you on the “miracle” weather app—mine’s more like a roulette wheel. I’ve tried a couple of those synthetics that promise the moon, and honestly, they’re not all bad, but 60 days? Maybe if you live somewhere with zero wind, rain, or sun. Around here, felt’s still my go-to for quick jobs. If I’m feeling fancy (or the boss is watching), I’ll splurge on the pricier stuff, but only if I know the shingles are going on ASAP. Otherwise, it’s just feeding the squirrels some new bedding material...


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(@fishing728)
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- Totally get where you’re coming from—those “60-day” synthetics sound great until a real storm rolls through.
- I’ve had felt blow off in a single windy afternoon, but sometimes it’s just the fastest option.
- Around here, squirrels and raccoons seem to love anything left exposed for more than a week...
- If you can get shingles on quick, splurging makes sense. Otherwise, yeah, might as well just toss cash in the yard.
- Hang in there—weather roulette is real, but you’re not alone.


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nalapupper196
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I hear you on the critters—raccoons chewed right through my old felt last spring. Didn’t even make it a week before I had to patch things up. I switched to one of those heavier synthetics after that, but honestly, I’m not convinced they’re all that much tougher in a real windstorm. We had a nor’easter blow through last fall and I still found a few corners flapping.

I’ve wondered if it’s more about how well it’s fastened than the material itself. My neighbor swears by cap nails every six inches, but that feels like overkill for a temporary layer. Anyone tried the peel-and-stick stuff? I keep hearing it’s great for low-slope roofs, but not sure if it’s worth the extra cost for a standard pitch.

Weather roulette is right... sometimes it feels like you’re just gambling with whatever you put up there. Curious what’s actually held up for folks in windy spots—especially if you had to wait a while before shingling.


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stevencollector3526
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I’ve had similar issues with both felt and synthetics—wind always seems to find a way under the edges, no matter what. Cap nails every six inches does seem like a lot, but I’ve noticed that when we skimped on fasteners, the corners peeled up faster, especially if there was any delay before shingling. Peel-and-stick is solid for low-slope, but on a regular pitch, I’m not sure it’s worth the extra money unless you’re expecting a long wait or really nasty weather. Has anyone actually seen a big difference in longevity between brands of synthetic? Some claim “high wind resistance,” but I haven’t noticed much in practice.


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