Writing Adjuster-Ready Supplement Requests for Hail Damage Claims

Adjusters deny supplements when causation or timing is ambiguous. Field teams lose weeks of recovery when photos lack scale or when radar ties are missing. Adopt a consistent evidence kit. Present the event, the inspection, and the proposed change in measured steps.

What adjusters actually look for

Adjusters aim to match a claimed change to a confirmed event. They expect:

• A dated event reference tied to NOAA data or a spotter-verified local storm report. Use dual-polarization radar hail detection or NEXRAD hail indications when available. Cite the radar time (UTC) and the observed hail size. Example: "NEXRAD hail detection 2026-05-12 16:05 UTC; radar-derived peak 1.75 inch."
• Time-stamped photos and video from the inspection. Include device time, timezone, and file-level timestamps.
• A clear causal narrative linking the storm to observable damage on the property. List measurements and exact locations on the roof or exterior.
• Line-item scope changes tied to visible defects on the inspection day. Attach measurements or sample counts for degraded areas.

Build a tight opening paragraph for the supplement

Open with one declarative sentence stating who inspected what, when, and why. Include coordinates or a street intersection if appropriate. Example sentence structure:

Inspector name, company, inspected 14:20 local time on 2026-05-12 at 32.82 N, -96.75 W following a spotter-verified 1.75-inch hail report and radar hail detection at 16:05 UTC.

Follow with the single-sentence summary of the requested change. Example: "Requesting supplement of $3,200 to repair south-facing asphalt shingles where granule loss and fractured tabs were documented." Keep amounts and scope separate from the evidence section.

Photo and video standards

Use a minimum of six images for each roof face or affected elevation. Required views and rules:

• Overall elevation shot from ground or ladder showing the entire slope with compass direction labeled. Include a neighborhood landmark or GPS coordinates in the file name.
• Mid-range shot showing the defect in context with a 1-foot scale or a measuring tape extended next to the defect.
• Close-up at 12–18 inches capturing material failure or impact morphology. Use macro mode for metal dents.
• A ruler or coin shot for scale. Use the NWS object scale when describing hail sizes. Example: "Observed quarter-sized impacts (1.00 inch) on south field of roof."
• Timestamped video sweep of the roof with the inspector narrating defects and locations. Save as MP4 with device-generated timestamp.
• Interior shots only when water entry or secondary damage is claimed. Photograph stains with a scale and note time first seen.

File naming convention. Use YYYYMMDD_sampleaddr_direction_photo#. Example: 20260512_ElmSt_SW_overview1.jpg. Keep original EXIF data intact. If you edit, preserve the original as a separate copy.

Measurement and sampling methods

Document counts and measurements. Use plain metrics. Examples:

• "South slope: 24 shingle tabs fractured across 6 adjacent starter courses. Average fractured tab length 1.1 in."
• "Gutter section 10 ft east of downspout: three 0.75 inch dents, measured with steel rule."

For granule loss, sample and weigh if possible. Record a plated area dimension and material loss in grams per square foot. For metal, measure dent depth and length with calipers. Include a brief methodology line in the supplement so the adjuster can replicate the sample.

Citing NOAA and local storm reports

Reference NOAA data to anchor timing and hail size. Provide:

• Radar time stamp and the supporting observation. Example: "Dual-polarization radar hail signature at 2026-05-12 16:05 UTC centered 32.83 N, -96.74 W."
• If available, cite a spotter-verified local storm report. Example: "Local storm report 2026-05-12 16:12 local – spotter verified 1.75-inch hail at 32.85 N, -96.72 W."

Do not rely on a general warning polygon instead of radar or spotter evidence. If you reference a warning area, label it as an NWS alert area and do not treat it as a confirmed hail footprint.

Language and structure for the body of the supplement

Write short bullet-backed paragraphs. Use numbers and coordinates. A suggested block:

• Event reference: NEXRAD hail detection 2026-05-12 16:05 UTC; spotter-verified 1.75 inch at 32.85 N, -96.72 W.
• Inspection: 2026-05-13 14:20 local by John Doe, Inspector ID 42. Photos 20260513_ElmSt_* attached.
• Findings: South-facing slope – 24 fractured tabs; three areas of exposed mat; granule loss averaging 18 g/sq ft over 12 ft2.
• Proposal: Replace south-facing slope (720 sq ft) and replace damaged gutters 10 ft east of downspout. Supplement request $3,200. Line items attached.

Include an attachments list at the end. Number each file and cross-reference it in the Findings section.

Common denial triggers and how to avoid them

• No time link between storm and inspection. Avoid by citing radar time and providing inspection timestamps within 48 hours.
• Photos without scale. Always include a ruler, coin, or tape measure in close-ups.
• Scope changes without visible defects. Tie every additional line item to a photographed defect and a measured sample.
• Using only an NWS alert area as evidence. Use radar detections or local storm reports for confirmation.

Quick inspection checklist (field card)

• Record radar/spotter reference and UTC time.
• Take overall, mid-range, close-up, scale, and video files.
• Name files with date, address, and direction.
• Measure and count; note units and sampling area.
• Attach estimate with line-item links to photos by number.

Closing the supplement

End with a one-sentence restatement of the requested action and the attachments index. Example: "Requesting $3,200 supplement to replace 720 sq ft of south-facing slope and 10 ft of gutter; attachments 1–12 provide the inspection evidence referenced above." Keep language neutral and precise.

Actionable takeaway. Treat each supplement as a mini-investigation. Provide NOAA timing, spotter verification where available, time-stamped imagery with scale, and repeatable measurements. Adjusters approve supplements that make the causal link explicit and verifiable.