Damage identification
Wind damage against ordinary wear: the distinction most claims turn on
Wind is the peril most often responsible for roof damage in Greater Houston, it damages roofs in a way that is nearly invisible from the ground, and the difference between wind damage and wear is the difference between an event and an expiry. Because sun ages a roof so quickly here, the two conditions coexist on almost every roof over ten years old — which is what makes this the hardest and most consequential distinction in the market.
What wind actually does
Wind does not push a roof down. It lifts it. Air moving over the roof plane creates negative pressure above the surface, and that suction is strongest at the perimeter — the eaves, the rakes and the ridge — and at any change of plane. A shingle only resists it in three ways: the nails holding it, the sealant strip bonding it to the course below, and the course above holding its head down.
So wind damage happens in a sequence. First the sealant bond breaks and the tab starts to move in a gust. Then the shingle folds back and creases across its width, which permanently damages the mat even if it lies back down afterwards. Then, in a later storm, it tears off. Somebody looking at the roof between the first and third stages sees a roof that looks perfectly normal and is not.
Two different kinds of wind
This market gets both, and they leave different evidence.
| Thunderstorm and squall-line wind | Tropical system wind | |
|---|---|---|
| Duration | Minutes. A gust front passes | Hours. Sustained wind with an embedded gust structure |
| Direction | One direction, usually | Rotating through the event, so a roof is loaded from several sides in turn |
| Typical evidence | Damage on the slope facing the storm, ridge cap gone, a run of creased courses | Damage on more than one elevation, cumulative seal failure, and far more wind-driven water |
| In the NOAA record | Yes — 256 damaging-wind reports across the service area from 2021 onward | No. Hurricane and tropical storm wind is catalogued under separate event types this site’s extract does not include |
| Establishing the date | Check the recorded storm dates for your ZIP code | The landfall date is public and unambiguous |
The strongest straight-line wind day in the record for this service area is 16 May 2024: 24 separate damaging-wind reports and estimated gusts to 104 miles per hour in Harris County. A fast-moving line of storms can do wind damage on the scale of a landfalling hurricane, in twenty minutes, on a day nobody named.
Telling wind and wear apart
| Characteristic | Wind damage | Ordinary wear here |
|---|---|---|
| Where it is | Eaves, rakes, ridge, and the slope facing the storm | Worst on the south and west slopes, following the sun |
| Pattern | Directional and abrupt — a run of courses, one slope, one corner | Gradual and even, following sun exposure and the water paths |
| The shingle itself | A crease or fold line across the width; the tab lifts by hand | Cracking, curling corners, cupping, brittleness, granule loss |
| The seal | Broken. The tab is not stuck to the course below | Often still sealed even on a spent roof, because heat keeps reactivating the strip, until the asphalt hardens past the point of bonding |
| Ridge cap | Frequently the first thing lost — it is the most exposed piece on the roof | Weathers with everything else, and faster than the field because it is doubly exposed |
| Timing | Traceable to a date, and to a recorded event | No date. It has been happening every sunny day since installation |
| What else is affected | Fence panels, tree limbs, siding at the corners, gutters pulled at one end, turbine vents spun off | Nothing. It is not an event |
The crease is the diagnostic. A shingle that has been folded back and released holds a line across its width, visible in raking light and permanent. Sun ageing does not produce a straight line across a course; nothing but a fold does.
Why the edges lose first
Uplift is highest at the perimeter of the roof, which is why the details there carry the whole thing:
- Starter course
- A purpose-made starter strip puts an adhesive bead right at the eave and the rake, bonding the first course down. Cut-up shingles used as starter put the adhesive in the wrong place, so the first course is effectively unbonded from day one. See starter strip.
- Drip edge
- Metal at the eave and rake that stiffens the edge, supports the overhang and stops wind getting under the first course. A roof with no drip edge has a soft, liftable edge all the way around, and the shallow eaves on much of this housing stock give wind an easy start. See drip edge.
- Nailing pattern
- Nails must land in the manufacturer nail line, at the specified count, driven flush and not through the surface. High nails miss the underlying course entirely, which means each shingle is held by half of what it should be. This is the single most common installation defect and it is invisible once the roof is on.
- Fastener pull-through
- A nail is only as good as what it is in. In older decking, thin board sheathing, or damp OSB, the head pulls through the shingle or the nail withdraws from the deck. In a humid attic with poor ventilation the deck is exactly the thing that gets damp, which is how a ventilation problem becomes a wind problem.
This is why the honest local framing on this site is edge detailing over printed ratings. In a market that records this many damaging-wind reports and gets a tropical season on top of them, the starter course and the drip edge do more for a roof than the wrapper the shingles came in.
How much wind it takes
Less than people expect, and it depends far more on the roof than on the gust. A well-nailed, properly started roof with intact seals shrugs off a strong thunderstorm. An older roof whose seals have already released — or whose asphalt has hardened past the point of resealing, which this climate arranges early — can lose courses in a gust that does nothing to the house next door. Both roofs experienced the same weather; only one had anything left holding it down.
This is also why a roof can be damaged by a storm that was not remarkable. A NOAA damaging-wind report is filed at a threshold, and plenty of roof damage happens below it. Equally, a recorded event near your ZIP code does not mean your roof was damaged. The record tells you which dates are worth asking about, and nothing more — see Storm Check.
What to do after a wind event
- Walk the property from the ground. Shingle pieces in the yard, ridge cap on the lawn, a lifted corner on a rake, gutter pulled loose at one end, a turbine vent missing.
- Photograph what you find, with the date. Photographs taken now are worth more than a recollection later, and in this climate the evidence degrades visibly over a single summer.
- Look at the neighbors’ roofs. Damage down one side of a street is the signature of a squall line and it supports the account of what happened.
- Check the date against the record. Recorded storm dates lists the significant wind days by county. For a tropical system, use the landfall date.
- Get it looked at close up. The seal check is the part that cannot be done from the ground, and it is the part that determines whether there is damage at all.
- Do it before the next system. An unsealed course that survived one storm is an open invitation to the next one, and between June and November there usually is a next one.
Do not let anyone lift shingles on your roof to demonstrate damage to you. Lifting a sealed shingle breaks the seal. A demonstration can create exactly the condition it claims to find, and it is not always accidental.
Where this leaves you
Wind damage is an event, with a date, and it is treated as a sudden accidental loss. Wear is the roof reaching the end of its service life, and no policy covers a roof for getting old. Most disputed roof claims in this market live exactly on that line, and because sun ages a roof here so fast, carriers see a great deal of genuine deterioration presented as storm damage — which makes them harder on the claims that are real. The way to be on the right side of it is documentation taken promptly, with dates that match the record and photographs that show specific slopes, not a stronger opinion later. Does insurance cover a roof replacement sets out how carriers draw the distinction.
Had a windy night and want the seals checked before the next one?
Request a free inspectionMy shingles are all still there. Can there still be wind damage?
Yes, and this is the most common version of it here. Shingles that were lifted and folded back are creased and unsealed even though they are still on the roof. They will come off in a later storm, and the damage dates from the earlier one.
How can anyone prove which storm did it?
Nobody proves it absolutely. What supports it is a date that corresponds to a recorded event near the address, damage in a direction consistent with that event, and documentation taken close to the date rather than a year later.
The roof is 15 years old and the wind took some shingles. Is that wind damage or wear?
It can genuinely be both, and that is what makes these claims difficult. An old roof holds less well, and an old roof also has less remaining value. The technical question is whether the specific damage was caused by the event; the settlement question is what the roof was worth before it — see ACV vs RCV.
Does a higher wind rating on the shingle solve this?
Only partly. A wind rating is achieved under test conditions with correct installation, correct starter, correct nailing and a fully sealed roof. On a real roof the rating is a ceiling that only good detailing lets you reach, which is why the installation matters more than the number. On the coast, note that windstorm compliance depends on products with published evaluations as well as on workmanship.
All work is performed by insured local roofing professionals. Texas does not license roofing contractors at state level, so insurance, references and a written scope are what there is to check.