Roof adjuster visit: storm damage vs wear, and how they decide

An adjuster standing on your roof is answering one question: did a specific weather event cause this, or did time. Almost every homeowners policy covers the first and excludes the second, so the entire outcome of a claim turns on which category the damage lands in. Understanding how that call gets made is worth more than any argument you can make on the day.

The Insurance Institute for Business and Home Safety, a research body funded by the insurance industry, has spent more than a decade studying exactly this. Its work is the closest thing to a neutral technical account of what hail and wind actually do to a shingle, and it is publicly available.

What the research says damage looks like

IBHS notes that asphalt shingles make up about 80 percent of installed residential roofs in the United States, which is why they have been the focus of its hail programme since the research centre opened in 2010. When IBHS rates shingles it fires laboratory-made hailstones at 1.5 and 2.0 inches and assesses three modes of damage: dents, tears, and granule loss.

Those three words are the vocabulary an adjuster is working in, and they are more specific than most homeowners expect. A roof that looks battered is not the test. A bruise that fractures the mat, a tear, or a patch stripped of its mineral surface is.

On the wind side, IBHS research found that sealant strength is a critical factor in resisting wind damage, particularly after hail impact. That finding matters for claims because it describes a sequence: hail weakens the seal, and a later wind event lifts shingles that would otherwise have held. Two events, one visible outcome, and a genuine question about which one to file against.

Storm damage against wear, feature by feature

Row three is the one to know before anybody climbs a ladder. Hail does not distinguish between roofing and gutters, so soft metal on the property carries a record of whether hail of a damaging size actually fell there. Its absence is a strong signal, and adjusters check it early.

The grey area the research has moved into

The clean split above is the working model, and IBHS research published in 2025 complicates it in a way homeowners should know about. Studying sub-severe hail, stones roughly 0.7 to 1 inch, combined with natural weathering, IBHS reported that shingles exposed to both became markedly more susceptible to damage from later severe hail, with granule loss the mechanism: once the mineral surface is stripped, the asphalt beneath degrades faster under ultraviolet light.

Read honestly, that finding cuts both ways and is being argued in both directions. It supports a homeowner’s contention that small hail causes real damage rather than none. It equally supports an insurer’s position that the resulting deterioration is long-term wear, which policies generally exclude. We are not going to pretend that is settled, because it is not, and anyone telling you it is settled has a stake in the answer.

What it does mean practically is that a roof in a hail-prone area may fail earlier than its rated life, and that the reason may be legitimately contested. That is a reason to document condition over time rather than only after a storm.

What to have ready before the inspection

1. A date for the event. Adjusters work from storm data. Knowing which day you are claiming against, and that hail or wind of a relevant magnitude was recorded locally, frames everything else.
2. Photographs from before, if you have them. Even phone pictures taken for another reason establish prior condition, which is the single hardest thing to prove after the fact.
3. The soft metal. Point out gutters, vents, flashing and any downspouts. It is the corroborating evidence for hail size and it is on your property already.
4. Interior evidence. Attic staining, damp insulation and daylight through the deck connect roof condition to actual water entry.
5. The roof’s age and any prior repairs, honestly. Misstating it damages credibility on everything else you say.

You are entitled to be present during the inspection, and it is worth being there. Not to argue, but to see what gets photographed and to hear which slopes were walked.

The decision this actually feeds

If the damage reads as wear, this is a maintenance question rather than a claim, and filing produces a denial on your record without producing money. Our guides to when a repair is urgent and when a roof has reached replacement are the relevant next step.

If it reads as storm damage, the next question is how the settlement is calculated, which is a separate mechanism with its own traps around depreciation and matching. That is covered in our piece on how a roof claim is actually paid. And whatever the inspection concludes, do not let a contractor who wants the job be the one who tells you what your policy covers. The FTC lists exactly that as a warning sign in its guidance on post-storm contractor tactics.

Questions readers actually ask

Why does the adjuster keep looking at my gutters?

Because soft metal records hail impact that shingles can hide. Gutters, vents and flashing dent at sizes that may leave ambiguous marks on asphalt, so their condition helps establish whether hail of a damaging size actually fell on your property. No marks on any soft metal is a strong indication that it did not.

Is granule loss automatically storm damage?

No. Granule loss is one of the three damage modes IBHS assesses, alongside dents and tears, but the pattern decides the interpretation. Loss concentrated in random impact marks reads differently from loss spread evenly across slopes and pooled below downspouts, which reads as age.

Can wind damage a roof that hail already hit?

That sequence is documented. IBHS found sealant strength to be a critical factor in wind resistance, particularly after hail impact, which describes hail weakening the seal and a later wind event lifting shingles that would otherwise have held. It is worth knowing because it can make the choice of which event to claim against a real question.

Should I get my own inspection first?

An independent assessment before filing is usually worth it, from someone who is not bidding on the repair. It tells you whether there is a claim at all, which matters because a denied claim still appears in your loss history. Whoever assesses it, do not sign a contract or an assignment of benefits to secure an opinion.

Written by

Keith Guirao

Founder & Editor, ConsumersWeek

18+ years in consumer marketing and lead generation across insurance, personal finance, and home services. ConsumersWeek explains how these products are priced and sold so you can evaluate them with the same information the industry has.

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