What Goes Into an Insurance-Grade Roof Inspection Report
Zone diagram: Every commercial roof we inspect gets a to-scale zone diagram with the full perimeter, all drains, all penetrations, all rooftop equipment locations, and a grid overlay that allows every photo to be referenced to a specific location. The zone diagram is the foundation of the report. Without it, an adjuster reviewing hundreds of photographs has no way to understand the spatial relationship between damage points.
Photo log: Every significant damage point gets a photograph keyed to the zone diagram. We label photos with the zone grid reference, the direction of the photograph, and the date and time of the inspection. For large roofs, we use GPS-tagged photography that embeds the coordinate data in the image file.
Cause-of-loss analysis: We describe each damage finding in terms of its likely cause, event-related damage versus pre-existing deterioration. Event-related damage shows specific characteristics: consistent damage density aligned with the storm track direction on hail events, perimeter-zone concentration on wind events, ice-dam infiltration patterns at parapets on winter events. Pre-existing deterioration shows different characteristics: uneven weathering, prior-repair evidence, and damage patterns inconsistent with the event's known characteristics.
Common Documentation Mistakes That Hurt Claims
Conflating pre-existing condition with event damage: A roof with aged sealant, prior patches, and weathered membrane that sustains a hail event has both pre-existing condition and event damage. A report that presents the full roof condition as event damage will be challenged by the adjuster. Our reports are specific about what was pre-existing and what the event caused, which makes the event-damage portion of the claim defensible.
No zone reference on photographs: A stack of 200 photos without location references is not useful documentation. Adjusters cannot walk the roof with a photo stack and identify where each photo was taken. Zone-referenced photos tied to a diagram are the minimum standard for a defensible commercial roof claim report. We produce this format on every inspection regardless of claim size.
Missing cause-of-loss narrative: Damage without a cause-of-loss explanation leaves the adjuster to make their own determination, which may not favor the insured. We describe the physical characteristics of the damage that support the reported cause, impact density on hail claims, perimeter concentration on wind claims, parapet ice-dam signatures on winter claims.
St Louis-Specific Documentation Considerations
Multiple damage events: Commercial roofs in the St Louis metro are subject to multiple significant weather events per year. A building that sustained hail damage in April, wind damage in June, and ice storm damage the following February has a complex damage history that requires careful documentation to distinguish which damage occurred in which event. We maintain inspection records for buildings on our maintenance programs specifically to support this kind of multi-event documentation.
Working with public adjusters: Many commercial building owners in St Louis use public adjusters to manage large or contested claims. We work with public adjusters regularly. Our documentation format is designed to give the public adjuster everything they need without creating a situation where the contractor is perceived as inflating the claim. Accurate documentation serves the public adjuster's interests as much as it serves the building owner's.
Working with counsel: For claims that go to dispute or litigation, our inspection reports are produced to a standard that holds up under deposition and cross-examination. We document what we observed, how we observed it, and what our professional assessment is, not what the insured wants us to find. That standard makes our reports useful in dispute resolution rather than counterproductive.
Documentation Protocol by Damage Type in St Louis
Derecho and wind damage: Fastener pull-test results at minimum 20 locations across the affected area, with comparison to the as-specified fastener pullout value for the building's deck type. Wind uplift calculation for the building's actual exposure category. Perimeter survey photos at 25-foot intervals. Parapet survey with displacement measurements. The fastener pull-test is the most important element in a derecho claim because it is what distinguishes storm damage from a pre-existing installation defect in cases where adjusters raise contributory negligence.
Hail damage: Test squares documented per current Insurance Institute protocol. Test square locations at field, perimeter, and corner zones at a density of one square per 10 squares of roof area. Impact count per test square, average impact diameter, and membrane condition assessment at each impact. Adjacent assembly damage, HVAC unit housings, skylights, and metal flashing, documented separately with photographs.
Ice and winter damage: Core sample locations mapped on the zone diagram with moisture content readings. Infrared survey images where applicable. Documentation of parapet base flashing condition and termination bar adhesion at each parapet face. Edge metal displacement measurements. Ice dam formation evidence at parapet locations where infiltration is suspected. Drain infrastructure condition, primary, overflow, and interior leader.
The Insurance Window and Proactive Documentation
Missouri's insurance claim window for property damage is typically one year from the event date, but the most defensible documentation is the documentation produced closest to the event. Waiting until leaks appear, often six to twelve months after a hail or wind event, means the damage has been further modified by weather, maintenance traffic, and time, all of which complicate the cause-of-loss attribution.
For buildings on our annual maintenance program, we track significant weather events in the St Louis metro and proactively schedule post-event inspections when an event meets our threshold for potential damage. Building owners do not have to monitor weather data or decide whether an event was significant enough to justify an inspection. We make that determination for the buildings on our maintenance roster and notify the owner when a proactive inspection is warranted and when the documentation produced has insurance claim value.
Multi-Building Portfolio Documentation After Major Events
Property management companies and REITs managing commercial portfolios in the St Louis metro face a documentation challenge after major weather events: multiple buildings potentially damaged simultaneously, a single insurance carrier, and a need for consistent documentation across all buildings to support a coordinated claim submission.
We produce coordinated inspection reports for portfolio accounts after major weather events, with consistent format across all buildings, a summary document that provides the full picture of the portfolio's storm damage, and individual building reports that contain the granular documentation each individual building claim requires. That coordination reduces the administrative burden on the property management team and typically accelerates claim resolution compared to multiple independent contractor reports submitted without consistent format or summary context.
