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The Roofing Manual

Storm damage

Signs of Hail Damage Homeowners Miss

A contractor's ground-level checklist for hail damage: granule piles, dented gutters, AC fins, splatter marks, and why leaks show up 1 to 3 years later.

Written and reviewed by James Turner

Roofing contractor with 20+ years in roofing and insurance restoration

Published Jul 2, 2026 · 6 min read

A storm rolled through last month, half the street has a roofing sign in the yard, and your roof looks fine from the driveway. Here is the uncomfortable truth from somebody who inspects these for a living: hail damage that totals a roof is usually invisible from the ground. You are not going to see it from the driveway, and neither is your neighbor.

But the storm leaves evidence where you can reach it. Granules piled at the downspouts, dents in the gutters, dinged AC fins, splatter marks on the fence. Find two or three of those and your roof took hits, and the clock is already running: policies commonly want hail claims filed within one to two years, while hail leaks commonly take 1 to 3 years to show up. Waiting for a ceiling stain is how homeowners eat 15,000 dollar roofs they had coverage for.

Why hail damage is invisible from the ground

Hail rarely punches a hole in a shingle. What it does is knock granules loose and fracture the fiberglass mat underneath, a wound the size of a dime or a quarter that reads as a faint dark smudge from 25 feet below. The roof sheds water fine the day after the storm. Then UV light goes to work on the exposed asphalt, the fracture opens a little more with every heat and freeze cycle, and 1 to 3 years later a stain blooms on a bedroom ceiling.

That lag is the trap. The damage happened on a specific date, the date of loss, which is the foundation of any claim. But the proof weathers away while you wait for a symptom.

What a hail bruise actually is

A bruise is displaced granules with a fractured mat underneath. The stone crushes granules into the asphalt or knocks them off entirely, and the impact cracks the fiberglass core that gives the shingle its strength. Press a fresh bruise with your fingers and it gives slightly, like the bruise on an apple. That soft spot is the tell.

Pattern matters as much as the mark. Hail hits scatter randomly, run heavier on the slopes that faced the storm, and show up on soft metals on those same sides. Wear, blistering, and foot scuffs follow patterns and high-traffic paths. Random and directional means storm. Adjusters are trained on exactly this, and we wrote up what they look for on a hail inspection so you can see the whole checklist.

The ground-level evidence checklist

Take your phone and 15 minutes, and walk the whole house:

  1. Granule piles at downspouts and splash blocks. A storm that bruises shingles strips granules, and the gutters deliver them to ground level. A handful at each splash block right after a storm is a flag. Some shedding is normal on a brand-new roof, so weigh the roof age.
  2. Dents in gutters and downspouts. Sight down the length of each run in low-angle morning or evening light. Aluminum remembers every stone that hit it.
  3. AC condenser fins. Flattened or peppered fins on the storm-facing side. Adjusters check this exact spot to confirm hail size.
  4. Window screens and window wraps. Torn or dimpled screens, dents in aluminum window wrap and fascia.
  5. Mailbox, grill lid, patio furniture. Soft metal that sits out all night is a free hail gauge.
  6. Splatter marks. Clean spots on dirty fences, decks, and driveways where hail knocked the grime off. These fade in weeks, so photograph them the day you find them.

Shoot everything with a coin or tape measure for scale and your phone timestamp on. Two or more of those flags and your roof took the same storm the metal did. Zero flags, and you probably do not have a hail problem from that event.

The time limit that beats homeowners who wait

Policies commonly require storm claims within one to two years of the date of loss, and some are shorter. Set that against the 1 to 3 year leak lag and you can see the squeeze: a hail roof often starts leaking after the window to claim it has closed. The carrier denying a three-year-old storm is not being sneaky. That is the contract you both signed. Deadlines vary by policy and by state, so read yours and put the date on a calendar.

This is why the ground-level walk the week after a storm matters so much. It costs nothing, takes 15 minutes, and it is the difference between a documented date of loss and a leak with no claim attached to it.

Why the neighbors' new roofs are evidence

Hail falls in swaths a few miles wide. If four houses on your street got insurance-paid roofs after the June storm, that same storm crossed your roof, and the carriers already know it: they pull weather data for your address the moment you call. Roofing yard signs are free intelligence. Ask the neighbor which storm date their claim used, which carrier paid, and who did the inspection.

A street full of new roofs does not prove yours is totaled. Age, pitch, slope direction, and shingle brand all change how a roof takes hail. What it proves is that your roof has earned a real inspection this month, not whenever you get around to it.

What you can check yourself, and what needs a pro

Safe self-checks, with your feet on the ground:

  • Everything on the checklist above, photographed and dated.
  • Binoculars on the roof: dented box vents and ridge vents, split pipe boots, dark smudges concentrated on one or two slopes.
  • The attic after the next hard rain: flashlight on the underside of the decking, looking for damp spots, water stains, or rusty nail tips.

What a pro adds is a trained eye and a method: chalked 10 by 10 test squares on each slope, hit counts per square (many carriers look for around 8 or more hits in a test square to total a slope), photos of every marked bruise, and a written report tied to a storm date. That report becomes the backbone of the claim. Most reputable local roofers inspect for free, and local matters, because the out-of-town door knockers working the storm are a topic of their own.

What to do next

If the walk-around turned up two or more flags, get a local roofer on the roof this week and photograph everything today, before the splatter marks fade and the granules wash down the drain. Then spend three minutes with the insurance claim quiz. It will tell you honestly whether the damage likely clears your deductible and whether filing makes sense at all, because a thin claim can cost you more than it pays.

If the checklist came up empty and you cannot name a storm date, do not go fishing for a claim. Set a reminder to walk the house after the next big cell instead. The 15-minute walk is the whole trick. Do it while the evidence is still on the ground.

FAQ

Frequently asked questions

What does hail damage look like on an asphalt shingle roof?

Up close: dark round bruises the size of a dime to a quarter where granules were knocked away, with a soft spot underneath where the fiberglass mat fractured. A fresh hit gives under your fingers like the bruise on an apple. Hits scatter randomly and run heavier on the slopes that faced the storm. From the ground, almost all of it is invisible.

How long after a hailstorm can I file an insurance claim?

Most policies require storm claims within one to two years of the date of loss, and some allow less. Your specific policy and state law control the deadline, so read yours instead of trusting a rule of thumb. The trap is that hail leaks often appear 1 to 3 years after the storm, which can be after the filing window has already closed.

Does hail damage always cause a leak?

No, and that is exactly why it gets missed. A bruised shingle usually sheds water fine at first. The fractured mat and exposed asphalt then break down under sun and weather, and leaks commonly appear 1 to 3 years later. By then the granule evidence has washed away and deadlines may have passed, so inspect after the storm, not after the stain.

Can I check for hail damage myself?

From the ground, yes: granule piles at downspouts, dented gutters and AC fins, torn screens, and splatter marks on fences are all reliable flags you can photograph safely. Leave the rooftop part to a professional. Walking a damaged roof is dangerous, it can scuff the evidence, and a trained inspector documents hit counts the way adjusters expect.

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