How to Build a Hail Test Square for an Adjuster Inspection

A hail test square is the most basic tool you have when you meet an adjuster on a roof, and it is the one most crews get wrong. The square itself is simple: a measured area of the roof, usually 10 feet by 10 feet, that you mark out so everyone standing on the roof is looking at the same patch and counting the same hits. Done well, it turns an argument about whether a roof is damaged into a shared count both sides can see. Done poorly, it gives the adjuster a clean reason to write the roof off as cosmetic, old, or fine.

The goal here is not to teach you tricks or to coach you into manufacturing damage. Manufactured damage is fraud, it is obvious to a trained adjuster, and it ends careers. The goal is to show you how to lay out a square that accurately and defensibly represents what the storm actually did to the roof, so that real damage gets counted and a fair conversation happens. If a roof is not damaged, a good test square should show that too. The whole point of the method is that it removes opinion and replaces it with something measurable.

What follows is the full workflow a sharp storm crew uses: how to pick the slope, how to chalk the square so it reads in a photo, what to mark and how, how to count and classify hits, how to handle the soft metals and accessories that make or break a claim, how to photograph all of it so it survives a desk review, and how to run the meeting itself. There are worked examples, real numbers, the mistakes that get squares thrown out, and the edge cases that separate a documented hailstorm from a denied claim.

What a Hail Test Square Actually Proves

Before you chalk anything, be clear on what the square is for, because that drives every decision after it.

A test square answers one question for the adjuster: across a representative, measured area of this roof slope, how many hail strikes are there that have damaged the shingle, and is that count consistent with the storm? An adjuster is not trying to find one hit. They are looking for a pattern of impact across the slope that matches a hail event, distributed in a way that wind-driven hail produces, and severe enough to have compromised the shingle. The square is how you both measure that pattern in one place instead of arguing about the whole roof.

Most insurance carriers and the loss-estimating standards their adjusters work from treat hail damage as a count-per-square problem. The widely used informal benchmark across the industry is somewhere around eight or more legitimate hail hits within a 10-by-10 area on a slope to support full slope or roof replacement, though that number is not a law, it varies by carrier, by region, by shingle type, and by the adjuster. Do not treat any single threshold as gospel. Treat the square as the place where you and the adjuster establish the real count, then let the count speak.

The square also proves something quieter but just as important: that you inspected the roof properly. When you mark a clean square, count carefully, and photograph it with scale and context, you are demonstrating that you know what you are doing. Adjusters meet a lot of contractors who point vaguely at granule loss and say "see, hail." A measured square tells them they are dealing with someone who documents, and that changes the tone of the entire meeting.

Cosmetic versus functional damage

Understand the line the adjuster is drawing. Functional hail damage means the impact has compromised the shingle's ability to do its job: the mat is fractured, the granule layer that protects the asphalt is knocked away, the self-sealing or the integrity of the shingle is at risk so the shingle will fail sooner than it should. Cosmetic damage means the surface looks marked but the shingle still functions. Many carriers exclude cosmetic damage entirely, and some policies carry a specific cosmetic damage exclusion endorsement that an adjuster will lean on hard.

Your test square has to show functional damage, not merely dark spots. That means when you find a hit, you have to be able to demonstrate granule displacement exposing the asphalt, a bruise you can feel, or a fracture in the mat. A spray of dark circles that are really just scuffs, blistering, or manufacturing marks will get your square dismissed, and worse, it will make the adjuster distrust everything else you show them.

Tools You Need On the Roof

Keep your kit small and consistent. Fumbling for gear in front of an adjuster reads as inexperience.

A few rules about the chalk. Use a color that contrasts with the shingle so the borders are obvious in a photo, and the same color every time so your documentation looks like a system. Do not use spray paint on a shingle you might be repairing instead of replacing. Do not use red chalk; it can stain, and on a denied roof the homeowner is left with red lines they did not want. Sidewalk chalk and lumber crayon both brush off or weather off quickly, which is what you want.

Step One: Pick the Right Slope and the Right Square

This is where most of the real skill lives. A test square is only as honest as the location you choose, and choosing well is both a technical and an ethical decision.

Read the storm before you read the roof

Hail comes in driven by wind, so it does not hit every slope equally. The slopes facing into the storm take the hardest, most direct impacts; the leeward slopes may show little or nothing. If you snap your square on the protected side and find nothing, you have not proven the roof is undamaged, and if you only square the worst slope you have not represented the roof either. You need to know which direction the storm came from.

You can read storm direction several ways: the spatter marks on soft metals and painted surfaces (hail leaves clean, oxidation-removing spatter that points back toward the storm's approach), the directional bruising on the shingles, and the public storm record. The National Weather Service and the Storm Prediction Center publish storm reports and hail size estimates by location and date, and your local NWS office archives event data. Pull the storm date and the reported hail size for the address before you ever get on the roof, so you know what you are looking for and which slopes should have taken the hit.

Pick a representative square, then a worst-case square

The defensible approach is to document more than one square. Lay a representative square on the predominant storm-facing slope, where you expect average impact, and be prepared to mark the worst slope as well. Adjusters often want to see the slope that faces the storm, and many will pick the square themselves. If you have already identified the storm direction and marked a clean, honest square on the correct slope, you look prepared rather than like you cherry-picked.

Avoid these spots when you place a square:

• The bottom three feet near the eave, where foot traffic, ladder contact, and runoff concentrate and confuse the picture.
• Directly around penetrations, valleys, and the ridge, where the shingle behaves differently and where damage is real but not representative of field shingles.
• Any area with obvious mechanical damage, prior repair, or scuffing from a previous inspection.
• A patch you happen to know has the most hits if it is not representative; document that separately as a worst-case, labeled honestly.

The middle of the field on the storm-facing slope is your representative square. Center it where the shingle is clean and typical so the count reflects the slope, not an artifact.

Step Two: Lay Out and Chalk the Square

Now the physical work. The standard is a 10-foot by 10-foot square, which equals one roofing square of 100 square feet. Some adjusters and some carriers prefer a 10-by-10; others will work in a smaller test area and scale the count. Default to 10-by-10 unless the adjuster asks for something else, because it matches how roofing is estimated and how the per-square thresholds are expressed.

The layout, step by step

1. With a partner, hook your tape at a clean starting point in the field of the slope and measure out 10 feet horizontally. Mark both ends.
2. From each end, measure 10 feet up the slope and mark. You now have four corner marks forming a 10-by-10.
3. Check it is square. Measure the diagonals corner to corner; on a true square they are equal at about 14 feet 1 inch (the diagonal of a 10-foot square is 10 times the square root of 2, roughly 14.14 feet). If the diagonals match, your square is true.
4. Snap your chalk lines between the corners along all four sides. Snap firmly so the line is crisp and continuous, because a broken or faint line photographs badly and a desk reviewer will question whether the area is really 100 square feet.
5. Stand back and look at it. The square should read instantly as a clean box on the slope. If a line wandered, re-snap it.

A crisp, correctly sized, verified-square box is doing quiet work in every photo afterward. It tells the reviewer the area is exactly what you claim, that you measured rather than eyeballed, and that the count inside is over a known 100 square feet.

When 10-by-10 will not fit

On small roofs, cut-up slopes, dormers, and steep complex roofs, a full 10-by-10 may not fit on a single clean plane. Two options. First, use a smaller test square, commonly a 5-by-5 (25 square feet) or another defined area, count the hits in it, and clearly note the actual dimensions so anyone can scale the result; four hits in a 5-by-5 is the same density as sixteen in a 10-by-10. Second, document multiple smaller squares across the slope and report each separately. Whatever you do, never claim a 10-by-10 result from an area that was not actually 10-by-10. State the real dimensions on the photo and in your notes.

Step Three: Find, Verify, and Mark Each Hit

This is the heart of the work. You are going to inspect every square foot inside the chalk and mark each legitimate hail strike so it can be counted and photographed.

What a real hail hit looks like and feels like

A functional hail hit on an asphalt shingle has a recognizable signature. You will see a roughly circular area, often with the granules knocked away to expose the darker asphalt underneath, sometimes with a soft, slightly indented center. Critically, you can often feel it. Run your fingers or your palm lightly over the area and a true bruise feels soft, like the give in a bruised apple, because the mat behind it has fractured. That tactile bruise is one of the strongest indicators of functional damage, because it shows the impact reached the structural mat rather than only the surface.

Fresh hits look different from old ones. A recent strike shows clean, sharp granule displacement and exposed asphalt that has not yet weathered or oxidized; the exposed asphalt looks black and fresh. Older damage and weathering show oxidized, dull, lighter exposed asphalt and rounded edges. Adjusters use this to judge whether the damage matches the storm date on the claim, so be honest with yourself about whether what you are seeing is fresh storm damage or old wear.

What is not a hail hit

Knowing the false positives is what makes your count credible. Do not circle any of these as hail:

• Blistering. Bubbles in the asphalt from trapped gases or moisture; they pop and lose granules but have no impact bruise behind them, and the loss pattern is irregular, not circular impact.
• Manufacturing or handling marks. Granule clumping, factory scuffs, and bare spots present from day one.
• Foot traffic and mechanical scuffs. Linear or smeared granule loss, often concentrated on traffic paths and around penetrations.
• Algae, lichen, and organic staining. Discoloration with no displacement and no bruise.
• Normal granule loss from age. Diffuse thinning across the shingle, not discrete circular impacts.

If you circle blisters and call them hail, a competent adjuster will catch it in the first thirty seconds and will reasonably distrust the rest of your square. Your credibility on the whole roof rides on not marking junk.

Mark each hit clearly

Go square foot by square foot. When you confirm a legitimate hit, circle it with your lumber crayon or keel. Keep the circle close around the actual impact, not a giant ring, so the photo shows the strike inside it. Use a consistent mark for every hit so the count is unambiguous. Count out loud with your partner and write the running number down. When you are done, the inside of the square should show a set of clearly circled impacts that you can photograph and tally.

If you are also distinguishing severity or freshness, you can use a second color or a small notation, but keep it simple. The adjuster wants to count clean circles, not decode a legend.

Step Four: Count, Classify, and Record

Now turn the marks into numbers that mean something.

The count

Tally the circled hits inside the square. Write the total on your notepad or in your app next to the slope identifier (for example, "South slope, representative 10x10, 11 hits"). If you marked a worst-case square separately, record that count and its location and dimensions separately and label it as worst-case so no one can accuse you of presenting the worst patch as typical.

A worked example. Say a roof has four slopes and the storm came from the southwest:

That table tells a coherent storm story: heavy on the storm-facing slopes, almost nothing on the protected slope, which is exactly what wind-driven hail does. A coherent pattern across slopes is far more persuasive than a single high number on one square, because it matches physics and is very hard to fake. An incoherent pattern (heavy on the leeward slope, nothing facing the storm) is a red flag the adjuster will notice, and so should you, because it may mean the marks are not storm hail.

Classify the damage as functional

For your strongest hits, be ready to show why they are functional, not cosmetic: the exposed asphalt from granule loss, the soft bruise you can feel, the fractured mat. If the carrier's position is going to be "cosmetic only," your notes and close-up photos of granule displacement and bruising are your counter. Note any hits where you can clearly feel a soft mat fracture, because those are the hardest to dismiss as surface marks.

Record collateral and accessory damage

The field shingles are only part of the case. Soft metals and accessories often carry the clearest, most undeniable hail evidence on the whole property, and they help corroborate the storm date and direction. Document all of it, separately from the shingle square:

• Soft-metal vents, pipe jacks, roof caps, and turbines. Dents in aluminum or thin steel are unambiguous and easy to photograph with raking light. Mark and shoot each one.
• Metal flashing, valleys, and drip edge. Dents and dimples here are strong corroboration.
• Gutters and downspouts. Dents on the top edges and faces, especially aluminum, point clearly to hail and show the size and direction.
• Window screens, wraps, and fascia. Tears and dents support the event.
• Air conditioner condenser fins, gable vents, mailboxes, and other site collateral. Dented condenser fins are a classic corroborating data point. Photograph them; they help establish that real hail of a real size hit this address.
• Spatter marks. The clean spots where hail removed oxidation or dirt from painted metal, vents, and even the shingles, which show the storm's direction and that impacts occurred.

This collateral is often what wins a contested roof. An adjuster can argue a shingle bruise is cosmetic; it is much harder to argue with a row of dented vents, a dented gutter, and dented condenser fins that all match the same storm.

Step Five: Photograph It So It Survives a Desk Review

The adjuster on the roof is often not the person who approves the claim. A desk reviewer or a supervisor may make the call from your photos and the field adjuster's report, and they were not on the roof. Your photos have to carry the whole story to someone standing in an office. This is where a lot of good field work dies, because the documentation does not survive the trip downstairs.

The photo sequence

Shoot a layered sequence that lets a reviewer zoom from the property down to a single hit without ever losing the thread:

1. House and address. A photo establishing the property, ideally with the house number visible, so every following photo is tied to this address.
2. Full roof and each slope. Wide shots showing the roof and orientation, so the reviewer can see which slope each square is on.
3. The whole chalked square in context. A shot showing the entire 10-by-10 on its slope, with the crisp borders visible and enough surrounding roof to place it. This proves the area and location.
4. The square with hits circled. The same square close enough to see the circled impacts, so the reviewer can count them in the photo.
5. Individual hit close-ups with scale. Tight shots of representative hits with a tape measure, coin, or ruler in frame for scale, showing the granule displacement and exposed asphalt. Include at least a few showing a clear bruise.
6. Soft-metal and accessory damage. Each dented vent, gutter, flashing, and the condenser fins, with scale where useful and raking light to make dents read.
7. Spatter and directional evidence. Shots of spatter on metals that show the storm direction.

Make the photos hold up

• Use scale. A ruler, tape, or coin next to a hit tells the reviewer the impact size, which they will compare to the reported hail size for the date.
• Use raking light for dents. Dents in metal disappear in flat light. Shoot soft-metal damage in low-angle morning or evening light, or hold a light at a low angle, so the dents cast shadow and read clearly.
• Keep the date, time, and location stamp on. Use an inspection app or camera setting that embeds date, time, and GPS, so the documentation is tied to when and where you stood. Do not alter these.
• Shoot more than you think you need. Storage is free; a second trip up a ladder for the photo you missed is not, and a denied claim for thin documentation is expensive.
• Never edit the images. Cropping for a report is fine; altering, enhancing, or staging is fraud and destroys your credibility and possibly your license.

A clean photo set means that if the claim goes to a re-inspection, an appraisal, or a supervisor review weeks later, the evidence stands on its own without you re-climbing the roof.

Knowing Which Roofs Are Worth Squaring in the First Place

There is a step that happens before any of this, and getting it right saves enormous time: deciding which roofs in a storm-hit area are even worth the ladder. Chalking squares on roofs that took no real impact, or on roofs too new to have a case, burns your crew's hours and trains adjusters to expect weak claims from you. The crews that win are the ones who show up to the roofs the storm actually wore out, with the storm already understood.

This is where per-roof storm modeling earns its place in the workflow. RoofPredict estimates a roof-age range for each address from aerial imagery and models the storm physics on each individual roof, the likely hail impact and wind exposure for that specific structure, rather than just telling you a ZIP code got hail. The practical value before an inspection is simple: it helps you prioritize which homes to knock and which roofs to inspect first, so your crew spends its days on roofs where a test square is likely to tell a real damage story, and skips the new roofs and the ones the storm barely touched.

Be clear about the honest limits, because this is where overpromising gets contractors in trouble. A model is odds, not proof. It tells you the storm likely loaded this roof hard and that the roof is old enough to have a case; it does not prove damage and it is not evidence for a claim. The chalk square on the roof, the counts, the bruises you can feel, and the photos are the proof. The roof-age figure is a range, not a manufacture date, and the storm model is a probability, not a verdict. Used the right way, it is a targeting and routing tool that gets your inspectors and your test squares onto the roofs most likely to need them, and keeps you from wasting a meeting with an adjuster on a roof that was never going to support a claim. Used the wrong way, as a substitute for the physical inspection or as something you wave at an adjuster, it will hurt you. Inspect the roof, document the roof, let the square and the photos make the case.

Running the Adjuster Meeting Itself

The square is built and documented; now you have to use it well in the room, which is to say on the roof. The meeting is where preparation either pays off or unravels.

Before the adjuster arrives

Do your own full inspection first, on a separate day if you can, and document everything: every slope, the squares, the collateral, the storm data. Pull the NWS or SPC storm report for the date and address so you know the reported hail size. Walk the property for ground-level collateral. By the time the adjuster shows up, you should know this roof better than anyone, and your documentation should already be complete. You are not discovering the roof together; you are walking the adjuster through what you have already found.

On the roof with the adjuster

• Let them work; do not crowd or coach them. Your job is to make sure the real evidence is in front of them, not to argue them into a number. A pushy contractor makes an adjuster defensive and gives them reasons to dig in.
• Offer the slope you both expect to matter. If the adjuster wants to pick the square, let them; your honest prep means any representative square on the storm-facing slope tells the story. If they square a leeward slope, professionally note the storm direction and ask to also square the storm-facing slope.
• Show, do not tell. Hand them the feel of a bruise. Point to the granule displacement and the exposed fresh asphalt. Walk them to the dented vents and the gutters and the condenser fins. Let the physical evidence do the persuading.
• Agree on the count together. The strongest outcome is a square where you and the adjuster counted the same hits and agree on the number. That shared count is the whole reason the square exists.
• Stay inside your lane. Document conditions and provide your estimate of the repair. Do not represent yourself as a claims expert, do not tell the homeowner their claim will be approved, do not discuss waiving or absorbing the deductible, and do not negotiate the claim on the homeowner's behalf. The homeowner owns the claim and the carrier decides coverage. In most states, stepping into adjusting or negotiating the claim crosses into unlicensed public adjusting, which is a legal problem you do not want. Your role is to document the roof accurately and provide a fair, itemized estimate.

After the meeting

Give the homeowner a copy of your documentation and your estimate. If the field adjuster's findings differ from yours, the path forward is the carrier's process, including re-inspection and, where the policy provides it, appraisal. Keep your documentation organized by address and date so it is ready if the claim is reviewed again. Good records age well; vague ones do not.

Common Mistakes That Get a Test Square Dismissed

A round-up of the errors that turn a real damage roof into a denied claim, drawn from what goes wrong in the field.

• Marking cosmetic marks, blisters, and scuffs as hail. The fastest way to lose all credibility. Mark only functional impacts you can verify.
• Snapping a square that is not actually square or not actually 10-by-10. If the diagonals do not match and you do not measure, a reviewer can argue the area and the density are wrong. Verify the diagonals.
• Cherry-picking the single worst patch and presenting it as representative. It reads as dishonest and it does not match the rest of the roof. Document a representative square and label any worst-case square as worst-case.
• Only squaring the slope with damage and ignoring the storm direction. A coherent multi-slope pattern is more persuasive than one hot square and is harder to dispute.
• Thin or unscaled photos. No scale, flat light on metal, no context shot, no date stamp. The desk reviewer cannot verify what they cannot see.
• Ignoring the collateral. Skipping the vents, gutters, and condenser fins throws away the strongest corroboration on the property.
• Using red or permanent marks, or spray paint, on a roof that may be repaired or denied. Leaves the homeowner with a defaced roof and looks unprofessional.
• Overstating to the homeowner. Promising approval, promising to handle the deductible, or calling yourself a claims specialist creates legal exposure and breaks trust when the carrier decides otherwise.
• Treating a storm model or a roof-age estimate as proof of damage. It is a targeting tool, not evidence. The physical square and photos are the evidence.
• Inspecting roofs that never had a case. Wastes your crew and trains adjusters to expect weak claims from you. Prioritize the roofs the storm actually loaded.

Edge Cases and Harder Roofs

The basic method covers most asphalt roofs. Here is how to handle the situations that trip crews up.

Steep and complex roofs

On a steep or cut-up roof you may not get a clean 10-by-10 on a single plane. Use a smaller defined test area, document its real dimensions, and shoot multiple smaller squares across the storm-facing planes. Safety first: a steep roof you cannot stand on safely is one you inspect with the right fall protection and, where appropriate, from a ladder or with imagery, not by free-climbing. Follow OSHA fall-protection requirements; no square is worth a fall.

Tile, metal, and wood roofs

The count-the-bruises method is built for asphalt composition shingles. On other materials the evidence is different. Hail on tile shows cracks, chips, and broken tiles rather than granule loss, and you document the broken and cracked units and the pattern. Metal roofs show denting that you photograph with raking light, and the question is often cosmetic versus functional depending on the panel and the policy. Wood shakes show splitting and impact fractures with fresh, light-colored exposed wood. The principle is the same: a measured, representative area, honest marking of genuine storm damage, scale, and strong photos. The specific signature changes with the material.

Old roofs and the age question

An old, worn roof is the hardest case, because the adjuster will argue the granule loss and the wear are age, not hail. Your defense is the discrete, fresh impacts with sharp exposed asphalt, the feelable bruises, and the matching collateral and spatter that tie damage to the specific storm. Fresh damage looks fresh; weathered loss does not. Be honest with yourself: if a roof is failing from age and there is no genuine storm signature, a test square should show that, and pushing a non-storm roof through an inspection damages your reputation with the carrier and risks a fraud finding.

Mismatched or discontinued shingles, and slope versus full roof

When a damaged slope cannot be repaired with matching shingles because the line is discontinued, that becomes part of the scope conversation, and matching provisions vary by policy and state. That is an estimate and policy matter, not a test-square matter, but it is worth knowing before the meeting because it affects whether the conversation is about a slope or the whole roof. Document the shingle type and any matching problem so the estimate reflects reality.

Re-inspections and appraisal

If the first inspection comes back short and the homeowner disputes it, there is usually a re-inspection process and, depending on the policy, an appraisal clause. This is exactly why bulletproof documentation matters: in a re-inspection weeks later, your original dated, scaled, address-tagged photos and your verified squares are the record. The crew with clean documentation is in a far stronger position than the crew relying on memory.

Matching Hail Size to Shingle Behavior

A detail that separates a sharp inspector from an average one is understanding how hail size relates to what you should expect to find, so you can sanity-check your own square against the storm record. Small hail, in the range under an inch, rarely produces functional damage on a sound asphalt shingle; it tends to leave spatter and superficial marks. As stones grow past an inch and toward an inch and a half, functional bruising becomes common, and at larger sizes you expect clear granule displacement, fractured mats, and obvious soft-metal denting. Older, more brittle shingles bruise at smaller sizes than fresh, pliable ones, and cold weather makes shingles more brittle, so the same stone does more on a cold day or an aged roof.

Use this to keep yourself honest. If the storm report says three-quarter-inch hail and you are circling forty hits in a square with deep mat fractures, something is off, and an adjuster will spot the mismatch immediately. If the report says two-inch hail and you find a strong, coherent pattern of fresh bruises and dented vents, your square and the record reinforce each other, which is exactly the corroboration you want. The reported size is also why scale in your photos matters so much: a reviewer compares the impact diameter in your close-ups against the size reported for the date, and consistency between the two is persuasive.

Be careful not to overstate the link. The public reports are estimates, often from spotters, and hail size varies street to street within a storm, so a report of one-inch hail does not rule out larger stones at a specific address. The point is not to force the roof to match the report; it is to make sure your documentation tells a coherent, physically plausible story, because coherence is what survives scrutiny.

What to Hand the Homeowner

The homeowner owns the claim, so part of doing this well is leaving them able to represent their own roof accurately. Give them a clean copy of your documentation: the dated photos, the square counts by slope, the collateral, and your itemized estimate. Walk them through what the square showed in plain language so they understand their own roof, without telling them how their carrier will rule. Make clear, in writing, that you document conditions and provide an estimate, that the carrier decides coverage, and that the claim is theirs.

This matters for trust and for staying out of legal trouble. A homeowner who has honest documentation and a clear estimate is in a strong position with their own carrier, and they remember the contractor who treated them straight, whether the claim is approved or not. A homeowner who was promised an approval that never came, or who was told their deductible would be handled, becomes a complaint and a liability. The cleaner and more honest your handoff, the better your reputation ages in a neighborhood, and reputation is what keeps a storm crew working between events.

A Field Checklist You Can Run On Every Roof

Use this as the repeatable workflow so every inspection produces the same defensible documentation.

Before the ladder

• Pull the storm date and reported hail size for the address from NWS / SPC records.
• Note the storm direction from the report and from ground-level spatter.
• Confirm the roof is worth inspecting (old enough, storm-loaded) before committing the crew.

On the roof

• Walk all slopes and identify storm-facing versus leeward.
• Choose a representative square on the storm-facing slope; avoid eaves, valleys, ridges, and penetrations.
• Lay out a 10-by-10 (or a defined smaller area, dimensions noted); verify the diagonals match at about 14 ft 1 in.
• Snap crisp, contrasting chalk borders.
• Inspect square foot by square foot; circle only verified functional hits; feel for bruises.
• Count out loud with a partner; write the count next to the slope ID.
• Mark a worst-case square separately if needed and label it.
• Document all soft-metal, gutter, flashing, screen, and condenser-fin collateral.
• Note spatter and directional evidence.

Photos

• Address shot; full roof and each slope; whole square in context; square with hits circled; close-ups with scale; bruises; all collateral; spatter.
• Date, time, and GPS stamp on; raking light on metal; nothing altered.

Meeting and after

• Complete your own inspection before the adjuster arrives.
• On the roof: show, do not coach; agree on the count; stay in your documentation-and-estimate lane.
• Provide the homeowner your documentation and itemized estimate.
• File everything by address and date for any re-inspection or appraisal.

Putting It Together

A hail test square is not a gimmick and it is not a sales prop. It is the disciplined act of measuring a known area of roof, finding and marking only the damage that is genuinely there, classifying it as functional, corroborating it with collateral and storm data, and photographing all of it so the truth survives a desk review. When you do that, you turn a subjective argument into a shared count, and a fair count is the best thing that can happen to a real damage claim.

The contractors who consistently win contested roofs are not the ones who mark the most circles. They are the ones who square the right slope, mark only real hits, read the storm correctly, document the collateral, photograph with scale and light, and stay honestly inside their role on the roof. Get the targeting right so you are inspecting roofs that actually took a hit, build the square with discipline, and let the evidence speak. That is what holds up, with the adjuster on the roof and with the reviewer who was never there.

FAQ

How big should a hail test square be?

The standard is 10 feet by 10 feet, which equals one roofing square of 100 square feet and matches how the per-square hit thresholds are expressed. On small or complex roofs where a full 10-by-10 will not fit on one clean plane, use a defined smaller area such as 5-by-5 (25 square feet) and clearly note the real dimensions so the density can be scaled. Never report a 10-by-10 result from an area that was not actually 10-by-10.

How many hail hits per square do you need for an adjuster to approve replacement?

A commonly used informal benchmark across the industry is roughly eight or more legitimate functional hail hits within a 10-by-10 area on a slope, but that number is not a fixed rule. It varies by carrier, region, shingle type, policy language, and the individual adjuster, and some policies exclude cosmetic damage entirely. Treat the square as the place where you and the adjuster establish the real count, then let the documented count and the collateral evidence make the case rather than relying on a single threshold.

How do you chalk a test square so it holds up in photos?

Lay out the corners with a tape measure, verify the box is true by checking that the diagonals match at about 14 feet 1 inch, then snap firm, continuous chalk lines in a color that contrasts with the shingle, like blue or orange. Avoid red chalk and spray paint because they can stain or deface a roof that might be repaired or denied. Crisp, verified borders prove the area is exactly 100 square feet, which a desk reviewer needs to trust your hit density.

What does real functional hail damage look like on a shingle?

A functional hit is usually a roughly circular spot where granules are knocked away to expose fresh, dark asphalt, often with a soft, slightly indented center. When you press it, a true bruise feels soft because the mat behind it has fractured, which is one of the strongest signs that the impact reached the structural layer rather than just marking the surface. Fresh storm damage shows sharp, clean granule displacement and dark exposed asphalt, while weathered loss looks dull, oxidized, and rounded.

What gets a hail test square dismissed by an adjuster?

The biggest credibility killer is circling cosmetic marks, blisters, manufacturing defects, or foot-traffic scuffs as hail. Other common reasons include a square that is not actually square or not actually 10-by-10, cherry-picking the worst patch and calling it representative, ignoring the storm direction, and thin photos with no scale, no context, no raking light on metal, and no date stamp. Mark only verified functional impacts and document the collateral so the square is hard to dispute.

Should I only build a test square on the slope with the most damage?

No. A single hot square on one slope is less persuasive than a coherent pattern across the roof. Hail is wind-driven, so the storm-facing slopes take the hardest hits and the leeward slopes show little or nothing. Documenting a representative square on each slope produces a pattern that matches the physics of the storm, which is far more convincing and much harder to dispute than one high count in isolation.

How do I find the storm date and hail size before inspecting?

Pull the public storm record for the address and date. The National Weather Service and the Storm Prediction Center publish storm reports and hail size estimates by location, and local NWS offices archive event data. Knowing the date, the reported hail size, and the storm direction before you climb tells you which slopes should have been hit and what impact size to expect, so you can compare it against the scale in your close-up photos.

What collateral damage should I document besides the shingles?

Soft metals and accessories often carry the clearest hail evidence on the property and corroborate the storm date and direction. Document dented turbine and box vents, pipe jacks, roof caps, metal flashing, valleys, drip edge, gutters and downspouts, window screens and wraps, fascia, and air-conditioner condenser fins. Also capture spatter marks, the clean spots where hail removed oxidation from painted metal, because they show the storm's direction. This collateral is often what wins a contested roof.

Can a storm model or roof-age estimate prove a hail claim?

No. A per-roof storm model and a roof-age range are targeting and routing tools that help you decide which roofs are worth inspecting, so your crew spends its time on roofs the storm likely loaded and skips the new ones. A model is odds, not proof, and a roof-age figure is a range, not a manufacture date. The physical test square, the verified hit count, the feelable bruises, the collateral, and the photos are the actual evidence for a claim.

What should a contractor avoid saying to the homeowner or adjuster?

Stay in the documentation-and-estimate lane. Do not promise that the claim will be approved, do not represent yourself as a claims or insurance specialist, do not discuss waiving or absorbing the homeowner's deductible, and do not negotiate the claim on the homeowner's behalf. In most states, stepping into adjusting or negotiating crosses into unlicensed public adjusting. The homeowner owns the claim and the carrier decides coverage; your job is to document the roof accurately and provide a fair, itemized estimate.