Shingles Missing or Lifted After a Montana Windstorm? What to Do Next

QUICK ANSWER: Missing or lifted shingles after a windstorm mean the wind got underneath the shingle tabs and broke the adhesive seal strip that normally glues each row down flat. Once that seal breaks, a shingle can blow off outright, or it can stay in place but stand up, creased and unsealed, which leaves the roof deck and underlayment exposed to the next round of wind and rain. From the ground, look for bare patches, shingles standing at an odd angle, and granules or shingle pieces scattered in the yard. Any spot with exposed underlayment or bare decking needs a tarp and a roofer soon; lifted-but-intact shingles need to get resealed before the wind picks up again, even if they look mostly fine.



Western Montana gets its share of hard, fast wind, the kind that comes down off the mountains and through the valley with barely any warning, rattling windows and stripping branches off trees. When it dies down and you walk outside to look at the roof, you might see a shingle sitting in the yard, a bare patch on a slope, or a row of tabs standing up like they got peeled back and never laid flat again. It's not always obvious what you're looking at or how urgent it is. Here's what wind actually does to an asphalt roof, how to read what you're seeing, and what to handle right away versus what can wait for a scheduled repair.

What to Check Once the Wind Dies Down

Before anything else, stay off the roof. A roof that just took a beating from high wind is not the place to be walking around, especially if it's still gusty, wet, or there's debris on it you can't see from a ladder. Everything you need for a first read can be done from the ground.



Walk the perimeter of the house and look up at each roof plane from a distance, using binoculars if you have them. You're looking for a few specific things: bare patches where the shingle color looks different or darker than the surrounding roof, shingles that are visibly standing up or curled instead of lying flat, and any spot where you can see a strip of black paper or bare wood instead of shingle. Then walk the yard, the gutters, and anywhere debris could have landed, shingles, shingle pieces, and dark sandy granules often turn up on the ground, in gutters, or against the base of the house well before anyone spots the actual gap on the roof.

Check the attic too, if you can get up there safely. A flashlight sweep along the underside of the roof deck, especially near any spot you flagged from outside, can catch a fresh damp patch or a sliver of daylight before it turns into a stain on the ceiling below. None of this requires getting on the roof itself. It just requires a careful look from where you already stand.

What's Actually Happening to a Wind-Lifted Shingle

Asphalt shingles are held down two ways: nails driven through the upper part of each shingle, and a factory-applied strip of adhesive along the shingle's face that bonds it to the row below once it's warmed by the sun and pressed down. That seal strip is what keeps the tabs flat against the roof day to day; the nails hold the shingle's position, but the seal is what resists wind trying to get underneath it.

High wind attacks that seal directly. Once a gust gets a finger under the bottom edge of a tab, whether from age, a weak seal, or just enough force, it acts like wind under an airplane wing, lifting the tab up and away from the roof. If the gust is strong enough and the shingle is caught at the right angle, it tears loose from the nails entirely and goes airborne, which is the shingle you find in the yard. If it isn't quite strong enough to rip the shingle off, the tab lifts, flexes, and comes back down, but the seal strip underneath has already separated and doesn't reseal itself. The shingle looks like it's back in place, sometimes with a visible crease where it folded, but it's no longer bonded down.

That's the part that trips people up.



A missing shingle is obvious. A shingle that got lifted and dropped back down often isn't, and most homeowners walk right past it thinking the roof came through fine. It's just as much of a problem, because the seal that kept wind, rain, and snow-melt from working underneath it is gone.

TIP: When you're doing your ground-level check, take a slow pass around every side of the house, not just the side the wind seemed to hit hardest. Gusty wind swirls around a roofline and can lift shingles on a side that looks untouched from the driveway. Note which slopes have bare patches, which have shingles standing up, and roughly where on each slope you saw it. That short list, with rough locations, saves a lot of time when a roofer walks the property and needs to know where to start looking closest.

Why a Shingle That's Still There Can Still Be a Problem

It's tempting to write off a storm as harmless if nothing actually blew off the roof. But a shingle that got lifted and settled back down, without resealing, is sitting in a kind of holding pattern. It's covering the roof deck the way it's supposed to, so from a distance or a quick glance it reads as fine. Structurally, though, that tab has no bond to the shingle underneath it anymore.

The next time wind comes through, even a weaker gust than the one that first popped the seal, that same tab has nothing holding it down except the nails higher up on the shingle. It lifts again, more easily this time, and each cycle of lifting and dropping tends to crease and weaken the shingle further, making the tab more likely to tear loose or let water track underneath along the crease. This is why a roof that made it through a windstorm looking intact can still lose shingles in a much smaller wind event weeks or months later, the damage already happened, it's just been sitting there unsealed and waiting for the next gust to finish the job.



Underneath any shingle, whether it's missing entirely or just unsealed, is the underlayment, a water-resistant layer that's meant to be a backup, not the main defense. It handles brief exposure reasonably well, but it isn't built to shed wind-driven rain or repeated snow-melt over an open stretch of roof indefinitely. Once shingles are gone or unsealed over a section of roof, the underlayment is doing a job it wasn't designed to do alone, and it's a matter of time, not chance, before water finds a seam or a nail hole and gets into the roof deck.

What Needs Attention Now vs. What Can Wait

Not every bit of wind damage carries the same urgency, and it helps to sort what you found into two buckets.



Anything with exposed underlayment or bare wood decking needs attention right away. That's a section of roof with no shingle covering left at all, and it has no real protection against the next rain or snow. If you can see black paper or wood where a shingle should be, that spot needs to be tarped or covered until a permanent repair can happen, especially with more weather likely to roll through. The same goes for any spot where you noticed water staining on the attic underside of the deck or on a ceiling below, that's a sign water is already getting past the underlayment and it shouldn't sit unaddressed.

Shingles that are lifted, creased, or curled but still attached and still covering the roof can typically wait for a scheduled repair rather than an emergency one, as long as the weather forecast gives you a reasonable window. They're not letting water in yet, but as covered above, they're unsealed and vulnerable, so "can wait" means days, not an entire season. The goal is getting a roofer up there to re-seal or replace those tabs before the next real wind event catches them in that already-weakened state. Scattered granule loss on shingles that are otherwise flat and sealed sits at the bottom of the list. Mention it to a roofer at the same visit. It's a wear indicator, not an active leak point.

WARNING: Do not climb onto the roof yourself to inspect or tarp storm damage, even if it looks like a quick fix. A roof surface after high wind can hide loose or lifted shingles you can't see until you step on them, and a wet, sap-slicked, or debris-covered roof adds a fall risk that isn't worth it for a look you can get from the ground or a ladder. If a section needs to be covered before a roofer can get there, that's a job for someone with the right harness and footing, not a homeowner on a ladder with a tarp.

Reading the Roof After the Wind Passes

A windstorm doesn't have to strip half your roof bare to leave real damage behind. Between the shingles you can see missing and the ones that lifted and dropped back into place without resealing, the roof can be carrying more vulnerability than a glance from the driveway suggests. Knowing what to look for from the ground, where the urgency actually sits, and why an intact-looking shingle can still be compromised puts you in a position to act on the right things at the right pace instead of guessing.

If a recent windstorm left your roof looking questionable, or you're not sure whether what you're seeing needs a tarp today or a repair next week, get a second set of eyes on it before the next front moves through. Havoc Roofing LLC checks wind-hit asphalt roofs across the Missoula and Bitterroot Valley area shingle by shingle, tab by tab, catching the lifted and unsealed spots that don't show up as an obvious gap, and getting them resealed or replaced before the next gust finishes what this one started. Get your roof looked at while the fix is still small.