Wind and Hail Damage: Scope Development, Insurance Claims, and Repair Standards
The hail and wind restoration business generated approximately $15 billion annually in the United States before the recent carrier-side tightening that began around 2020. The tightening was not arbitrary — it was a response to documented over-scoping, storm-chasing practices, assignment-of-benefits abuse, and fraud in the storm restoration market. The result is a significantly more adversarial claims environment in which even legitimate, well-documented claims are routinely initially underpaid, require supplements, and occasionally proceed to appraisal.
Professional contractors who understand the claims process, produce carrier-grade documentation, and write technically sound scopes navigate this environment far better than contractors who rely on volume and speed. This guide provides the technical and procedural foundation for developing wind and hail scopes that are defensible from the first contact through final payment. For the field inspection and documentation that precedes scope development, see Roof Damage Assessment and Emergency Tarping. For the broader storm damage framework, see the Storm Damage Restoration Complete Professional Guide.
The Functional vs. Cosmetic Damage Distinction: The Central Battleground
No issue in storm damage restoration has generated more carrier disputes, state insurance department guidance, and litigation than the functional vs. cosmetic damage distinction. Understanding it precisely is no longer optional for contractors operating in the hail market.
Functional damage impairs the performance of the damaged component’s intended function. For a roof covering, the intended function is waterproofing and weather resistance. On asphalt shingles: functional hail damage includes mat bruising with granule displacement that exposes the fiberglass mat (eliminating the granule layer’s UV protection, creating premature mat oxidation and eventual waterproofing failure); impact craters that create surface irregularities affecting drainage patterns; and damage to sealant strips that compromises wind resistance. The word “functional” in this context means a quantifiable reduction in the material’s ability to perform — not an immediate active leak.
Cosmetic damage affects appearance but does not impair function. Surface scuff marks on shingles, minor granule loss without mat exposure, and impact dings in metal gutters, flashing, or trim without structural distortion are cosmetic. Many carriers have inserted cosmetic damage exclusions into homeowner policies, removing coverage for cosmetic damage on specific materials. As of 2025, cosmetic damage exclusion language is present in a significant proportion of homeowner policies in Texas, Colorado, Minnesota, South Dakota, and other high-hail-frequency states.
The testing protocols: The probe test is the primary field method for distinguishing functional hail bruising from age-related weathering on asphalt shingles. A probe (pick, ice pick, or calibrated probe tool) is pressed firmly into a suspected hail bruise. Fresh functional bruising yields under probe pressure — the mat beneath the impact site is still relatively soft and the depression is compressible. Age-hardened weathering produces a rigid, non-yielding surface even where granule loss is apparent. The HAAG protocol for hail damage testing on asphalt shingles specifies probe testing methodology, documentation standards, and the distinction between functional and non-functional indicators.
Hail Damage Scope: Material-by-Material Framework
Hail affects multiple building materials simultaneously. A comprehensive hail damage scope covers every exterior material system, not just the roof.
Asphalt shingles: The scope line item for asphalt shingle replacement is typically “Remove and Replace Roofing — Composition Shingles” with appropriate unit pricing per square (100 square feet). Supporting the replacement scope requires: hail impact density count (number of functional impacts per 10 sq ft test square, averaged across multiple field locations), meteorological evidence of hail size at or above functional damage threshold, probe test results documented in writing, and photographs of representative functional damage sites with scale. Partial roof replacement in the same color/exposure is accepted in some markets but requires matching confirmation before scope is finalized — if the damaged square is discontinued, matching failure drives toward full replacement.
Gutters and downspouts: Aluminum gutters are among the most clearly legible hail damage indicators — hail impact produces circular dents with clean edges and raised rims that are visually distinct from accidental impact damage (which tends to be random in shape) and from installation error (which produces linear deformation). Spatter density in gutters should be consistent with the hail density observed on the roof. Gutter replacement scope includes remove and replace gutters, downspouts, and end caps, with notes on any specialty profiles (half-round, K-style) that require special order material with extended lead time.
Painted wood trim and fascia: Wood trim painted surfaces show hail impact as surface paint penetration, raised wood fiber at impact sites, and in severe cases, wood splitting. Document with close-up photography; the impact marks on painted wood are often less obvious than on asphalt but are present and distinguishable from normal weathering. Scope lines for painted wood typically include repair or replace with repaint.
Vinyl and fiber cement siding: Vinyl siding cracks under hail impact above approximately 1.5 inches, producing characteristic spider-web fractures or split lines. Fiber cement siding is more resistant but shows impact marks at large hail sizes. The scope challenge for siding is matching — siding manufacturers frequently change colors and profiles, and discontinued products create matching issues that can drive full-structure scope even when only one elevation was damaged. Establishing the manufacturer, product line, color name, and production date before writing siding scope prevents scope disputes downstream.
HVAC equipment: Condenser fins on air conditioning units are extremely vulnerable to hail damage — even 1.0-inch hail can bend or crush fins sufficiently to reduce heat transfer efficiency by 20–40%. The scope for HVAC hail damage is not typically full unit replacement (unless the compressor housing is punctured or internal components damaged); it is fin straightening (if within the service threshold) or fin coil replacement, plus an HVAC technician’s evaluation for internal damage. Insurance carriers may require an independent HVAC technician’s report for unit replacement scope — do not assume replacement is covered without confirming with the carrier before the unit is removed.
Skylights and windows: Hail-cracked skylight glazing is clearly functional damage — broken glass has no waterproofing function. Window frame damage (bent or cracked extruded aluminum) and broken glazing in windows are straightforward replacement scope. The subtlety is impact-damaged insulated glass units (IGUs) that have not yet broken — concentrated hail impact on an IGU can damage the seal between the glass panes, causing progressive fogging as the desiccant is exhausted. IGU seal failure from hail impact is a documented phenomenon and, where verifiable, is a legitimate scope item even before visible fogging occurs.
Wind Damage Scope: Causation Analysis and Documentation
Wind damage scope development requires a causation argument that the wind event — not age deterioration, manufacturer defect, or installation error — was the proximate cause of each scope item. This argument must be made for every scope line, not just for the overall claim.
Missing and lifted shingles: Missing shingles attributable to wind are documented by: pattern consistency with documented wind direction; concentration in aerodynamically high-stress zones; evidence of intact sealant adhesion on adjacent shingles (indicating the damaged shingles failed under load, not due to sealant absence); and meteorological evidence of wind speeds at or above the manufacturer’s wind resistance rating for the installed product. Most three-tab asphalt shingles are rated for 60-70 mph; most architectural shingles are rated for 110-130 mph. Documentation of installed product’s wind rating is part of the scope file.
Granule loss from wind: Wind-driven granule loss is distinct from both hail-related and age-related granule loss. Wind abrasion produces directionality in the loss pattern — granules are displaced from the windward face of each shingle in a directionality consistent with the storm’s wind direction. Age-related granule loss produces diffuse, non-directional distribution. Hail-related granule loss concentrates at discrete impact sites. Documenting the directionality of granule loss in the field inspection supports wind causation.
Soffit and fascia damage: Wind lifts soffit panels from the windward elevation and can tear fascia boards from their backing. The damage pattern on soffits should be consistent with the documented wind direction — windward elevation damage with intact leeward elevation soffits is consistent with wind causation; damage on all four elevations without directional pattern may indicate age-related fastener failure rather than wind event loading.
Fence and outbuilding damage: Fences, detached garages, sheds, and carports are often included in wind damage scope. These structures typically have lower wind resistance than the main structure and provide corroborating evidence of wind loading consistent with the documented event.
Writing the Scope: Xactimate Best Practices for Storm Claims
Xactimate is the dominant estimating platform in property insurance claims — approximately 85% of U.S. property claims are estimated in Xactimate at some stage of the adjustment process. Writing storm scopes in Xactimate-compatible format is not a preference; it is a professional requirement for working efficiently in the carrier ecosystem.
Line item selection: Use the most specific applicable line item rather than a generic substitute. “Remove and Replace Roofing — Composition Shingle — Laminated, High Grade” captures material quality differences that affect the price and that will be argued if a generic line item is used. When a specific Xactimate line item does not exist for a required scope element, use the closest available line item with an F9 note explaining the deviation and the basis for the price modifier used.
F9 notes on contested items: Any scope item that is likely to be disputed by the carrier’s adjuster should carry a detailed F9 note explaining: the physical evidence that supports the line item, the photo reference number that documents it, the standard or code requirement that mandates it (for code upgrade items), and the basis for the quantity used. F9 notes are the narrative equivalent of the contractor’s argument in the supplement process — write them as if you are explaining the item to someone who is looking for a reason to deny it.
Code upgrade items: Full roof replacements triggered by storm damage often require code-mandated upgrades that were not present in the original installation — ice and water shield at eaves and valleys (required by IRC R905.2.7 in most jurisdictions), drip edge installation (IRC R905.2.8), ridge ventilation upgrades, and in some jurisdictions, high-wind fastening patterns. These are not contractor upsells — they are building code compliance requirements that the carrier is obligated to cover as part of restoring the property to a legally compliant condition. Each code item requires a local code reference in the F9 note.
Overhead and profit: Overhead and profit (O&P) on storm damage claims is a source of persistent dispute. The Xactimate standard applies 10% overhead and 10% profit as a default on most line items; carriers routinely challenge O&P on claims where they argue only a subcontractor is involved, not a general contractor. The standard for O&P application is the presence of a general contractor who is managing multiple trades, coordinating material delivery and sequencing, providing project warranty, and carrying project liability insurance. Document the scope of project management on any claim where O&P is challenged.
The Supplement Process: How to Manage It Professionally
The supplement process — submitting additional scope items not included in the initial carrier estimate — is now an expected phase of storm restoration claims rather than an exception. The average storm restoration claim requires at least one supplement, and commercial and complex residential claims frequently require multiple rounds. Managing this process professionally determines both the speed of payment and the contractor-carrier relationship quality.
Supplement timing: Submit the supplement as soon as the additional scope is documented — do not batch multiple supplements. A supplement submitted before the carrier’s initial payment is processed creates a cleaner administrative trail than a supplement submitted after payment is received and applied.
Supplement documentation: Every supplement item requires the same documentation standard as original scope: physical evidence photograph, F9 note or written explanation, measurement basis, and Xactimate line item. A supplement that is a list of additional line items without supporting documentation will be challenged item by item; a supplement that is a documented argument for each item moves through review faster.
Hidden damage supplements: Hidden damage revealed during tear-off — rotted decking, degraded underlayment, deteriorated flashing that was not visible until removal, damaged structural members under intact finish materials — is the most common supplement category. Document hidden damage in real time with photographs and written notes that include the date, location, and conditions under which it was discovered. “We found rotted decking when we tore off” with a photo of rotted boards is a legitimate supplement; a verbal claim after the fact without contemporaneous documentation is not.
The Appraisal Process: When Disputes Cannot Be Resolved
Most property insurance policies contain an appraisal clause that allows either party to demand an appraisal when there is a dispute about the amount of loss. The appraisal process is not litigation — it is a contractual dispute resolution mechanism that produces a binding award through a panel of two appraisers (one selected by each party) and an umpire. Understanding when appraisal is appropriate and how to support it is a professional skill for storm contractors operating in high-dispute markets.
Appraisal is most appropriate when: the carrier has made a payment, but the contractor believes the scope is materially underpaid; supplementation has been exhausted without resolution; and the disputed amount justifies the cost and time of the appraisal process (typically 60–120 days and $3,000–$10,000 in professional fees on each side). Appraisal is not a guarantee of contractor-favorable outcome — it is an independent evaluation that sometimes confirms the carrier’s position. Strong technical documentation going into appraisal significantly improves outcomes.
Public adjusters and contractor-retained appraisers specialize in storm damage appraisal representation. In states where assignment of benefits is still permitted, contractors may hold a direct financial interest in the appraisal outcome. In states with AOB restrictions, the contractor’s role is typically limited to providing technical support and documentation to the policyholder’s appraisal team rather than serving as an independent appraisal interest holder.
Post-Storm Market and CAT Response Considerations
Major convective events create regional contractor shortages that drive both material lead times and temporary price increases. Xactimate pricing updates (monthly for standard pricing, weekly for emergency pricing in declared disaster areas) lag market reality in the immediate aftermath of major events — and the gap between Xactimate pricing and actual material/labor cost in a CAT market is a legitimate supplement ground when documentation of actual cost supports the variance.
Emergency Xactimate pricing zones are declared by Verisk following major weather events and provide temporary price increases that partially reflect market conditions. Contractors working in declared disaster areas should monitor for emergency pricing activation and apply it to claims in the affected geography during the active period.
Connecting Wind and Hail Scope to the Full Storm Workflow
Wind and hail scope covers the exterior building envelope — the entry points for storm damage. Where that envelope was breached, water intrusion follows, requiring a parallel and separately documented mitigation scope under ANSI/IICRC S500. For the complete water intrusion response protocol, see Storm Water Intrusion: Extraction, Drying, and Mitigation Protocol. For the initial roof assessment and emergency stabilization that precedes scope development, see Roof Damage Assessment and Emergency Tarping. Return to the Storm Damage Restoration Complete Professional Guide for the full program framework.
Frequently Asked Questions
How do you document hail damage for an insurance claim?
Hail damage documentation requires: pre-work photographs of all affected surfaces with scale references; meteorological verification of hail size at the property (NOAA NEXRAD data or a certified storm report); probe testing of suspected impact sites on asphalt shingles to distinguish functional mat bruising from weathering; hail impact density counts in multiple 10-square-foot test areas; documentation of all affected exterior surfaces (gutters, AC units, siding, trim); and a written scope of loss with line items, measurements, and photo references for each item.
What size hail causes functional damage to asphalt shingles?
No universal threshold exists — outcomes depend on hailstone density, fall velocity, fall angle, shingle age, and mat condition. Generally, hail 1.0 inch or larger is capable of producing functional bruising on aged shingles; hail 1.5 inches or larger consistently produces functional damage on most asphalt shingles. Class 4 UL 2218 impact-resistant shingles resist functional damage from hail up to approximately 2 inches. The carrier’s often-cited 1.0-inch threshold is not an industry standard and is not defined in any building code.
Can a wind damage claim be denied if wind speeds were below the threshold?
Carriers frequently deny wind claims by citing insufficient recorded wind speeds at the nearest station. This argument is vulnerable because: station data does not reflect conditions at the property; local pressure effects cause damage at lower average speeds; and installation deficiencies lower the effective resistance of a specific structure. A forensic meteorologist’s site-specific wind analysis and, in contested cases, a structural engineer’s assessment of the building’s actual wind resistance are the appropriate technical responses.
What is an Xactimate F9 note and how is it used in storm claims?
An F9 note is a line-item annotation in Xactimate that documents justification, special conditions, or explanatory notes directly attached to any scope line item, visible to the adjuster as part of the estimate. In storm claims, F9 notes document why a line item is included, the measurement basis, material specifications, code references, and links to supporting photographs. Well-written F9 notes on contested scope items significantly reduce supplement cycle time.
What is a matching claim in storm damage restoration?
A matching claim arises when replacing storm-damaged materials creates a visible mismatch with undamaged adjacent materials — particularly when the damaged material is discontinued or weathered to a different appearance. Most policies require restoration to pre-loss condition, creating an obligation to address visible mismatch through full replacement or supplemental finishing. Several states have affirmed carrier matching obligations; others have enacted cosmetic damage exclusions that complicate matching arguments. Policy language and state guidance must be reviewed for each specific claim.