claims

Claim Denials That Turn on Storm Evidence

Six categories of storm claim dispute decided by the weather record and the paperwork rather than by the roof, each grounded in a source.

When the record decides the file, not the roof

Some claim disputes really are about the roof: an inspector and a contractor disagree about whether a mark is a hail hit or a blister. Those get settled there.

Others are not about the roof at all. They turn on which event is named, whether the data shows anything at that location, what a reported size implies, what the policy excludes, and who prepared the estimate.

What follows is six such categories, each grounded in a published source. They are types of dispute, not frequencies. Nothing here says how often any of them happens or how often carriers deny claims, because no source consulted for this piece reports that.

Wrong date of loss

The claim names a date, the record does not line up with it, and the file stalls before anyone looks at a shingle. Two features of the public record make that easy.

The first is statutory, in at least one state. Florida Statutes section 627.70132 provides that for claims resulting from hurricanes, tornadoes, windstorms, severe rain, or other weather-related events, the date of loss is the date the hurricane made landfall or the other event "is verified by the National Oceanic and Atmospheric Administration." In Florida the date of loss is tied to verification, not to the day somebody noticed damage. That is Florida. Check your own state's law and read your own policy.

The second has nothing to do with law. The Storm Prediction Center groups its daily storm reports by a 1200 UTC to 1159 UTC day rather than a local calendar day. A late evening storm and an after-midnight storm can land on the same report day, and a report day read as a local calendar date puts the file off by a day from the start. The same page also labels those reports preliminary.

No event in the record at that location

The absence of a record is ambiguous, and both sides tend to read it as proof of their own position.

The National Weather Service is direct about it. If an event is missing from both the Storm Data publication and the Storm Events Database, it "was not reported to the National Weather Service". It says the event was not reported. It does not say the event did not occur.

So the line cuts both ways. A missing report is not evidence of a storm, and not evidence against one.

The radar research is why the second half matters. Wendt and Jirak, in Weather and Forecasting, April 2021, compared MESH, the maximum estimated size of hail diagnosed from radar, against Storm Data hail reports for 2012 to 2019 over the contiguous United States. MESH estimates of severe hail hours per year were higher at all CONUS locations than estimates built from reports, and across much of the High Plains MESH put the count on the order of 20 more hail hours per year than Storm Data recorded. The authors conclude severe hail is plausibly underreported there because of low population density, while allowing that MESH likely overestimates severe hail to some degree.

The radar estimate is not a confirmation, and the report count is not a census.

Preexisting wear and cumulative damage

Here the roof and the record meet. The carrier's position is that what is on the slope is age, wear, or the accumulated effect of earlier small storms rather than the event claimed. That argument long ran on assertion, because the published impact testing concentrated on severe-size hail striking new product.

A 2025 paper changes what can be said about it. Meisenzahl, Giammanco and Hedayati, in Frontiers in Materials on 29 September 2025, fired ice spheres of 17.8 mm and 25.4 mm at asphalt shingle specimens, 1,000 impacts per specimen, at a concentration of 44 impacts per square foot drawn from field data.

What matters here is how weathered specimens behaved under a severe impact. Granule loss from a single 50.8 mm impact, which is 2 inches, averaged 192.2 square mm on the naturally weathered group, against 57.2 square mm for the control group and 20.0 square mm on the new baseline. The authors report an average performance decline of 47 percent, range 39 to 67 percent.

So age and prior small-hail exposure genuinely change what one storm does to a roof. The category describes a real mechanism, and an older roof can lose far more material to the same stone than a new one. One limitation: the authors tested six products, two specimens each, call the sample small, and say more testing is needed.

Hail size below a damage expectation

The record shows an event, but at a size the carrier says should not have produced the damage claimed.

There is a real data point behind that. IBHS tested commercially available asphalt shingles with 1.5-inch and 2.0-inch laboratory manufactured hailstones on new products bought through the typical consumer supply chain. All products tested with 1.5-inch laboratory hail were rated Good or Excellent performers, and IBHS says that in their new state both impact-rated and non impact-rated shingles should offer good protection for 1.5 inch or smaller hail.

Three qualifications travel with that, and IBHS states all three: the products were new, IBHS did not test all available asphalt shingles, and IBHS is a nonprofit research organization funded by the property insurance industry. The sub-severe work above speaks to the first.

Reported sizes have their own texture. The NWS reference chart pairs diameters with everyday objects: 1 inch a quarter, which is severe criteria, 1 1/2 inch a walnut or ping pong ball, 1 3/4 inch a golf ball, 2 inch a hen egg. The same page notes most local hail reports are three quarters of an inch or smaller. And the MESH paper notes that hail is often estimated by the public by comparison to a reference object of known size, a reason to carry a reported size as an estimate rather than a measurement.

Cosmetic damage exclusions, as Texas wrote them

Both sides agree there was hail and that there are marks. The dispute is whether the policy pays for appearance.

Texas put the mechanics on the public record. Texas Department of Insurance Bulletin B-0030-98 adopts endorsement HO-145 for Texas Homeowners Forms HO-A, HO-B and HO-C, and endorsement TDP-022 for Texas Dwelling Forms TDP-1, TDP-2 and TDP-3, both effective May 2, 1998.

The conditions matter. The endorsement may be attached only to policies insuring risks eligible for and receiving a credit for a roof covering meeting U.L. Standard 2218 or another approved standard. It must be signed by the insured before attachment and is void unless signed.

So in Texas this exclusion is tied to an impact-resistant roof credit and to a signature. Whether a file has either is a question about that policy's own documents. Other states handle them differently.

Contractor conduct that disqualifies an estimate

This category is the most within a contractor's control. Two of the states researched here provide that an insurer need not consider an estimate from a contractor who did a specific thing.

Colorado's residential roofing article provides at 6-22-105(1) that a roofing contractor paid from property and casualty insurance proceeds "shall not advertise or promise to pay, waive, or rebate all or part of any insurance deductible", and at 6-22-105(2) that if the section is violated the insurer is not obligated to consider the contractor's estimate of costs.

Minnesota Statutes section 325E.66 reaches the same consequence. A residential contractor paid from the proceeds of a property insurance claim may not advertise or promise to pay, directly or indirectly, all or part of any applicable insurance deductible. If the section is violated, the insurer need not consider the contractor's estimate.

Two states, named. The consequence is unusually specific: the estimate stops counting. A marketing decision made months before a storm can take a contractor's numbers off the table in a file where the weather evidence was fine.

What to carry into the file

Five of those six categories are decided by documents rather than observation, so the useful move is to build the documentary side at intake, not at dispute.

Fix the date and name the source that fixes it, under the report-day convention you read it. Record what the public data does and does not say about that location, in the agency's own words. Note the roof's age and known prior exposure. Keep any reported hail size labeled as an estimate. Read the policy for the endorsement and signature a cosmetic exclusion may depend on. And keep your own advertising clean, because in at least two states it decides whether your estimate is considered at all.

None of that settles an argument about whether a mark is hail. It removes the arguments that were never about the mark.