Commercial Roofing Documentation Guide

• →Commercial roof claims carry higher total values — membrane replacement, insulation, cover board, and equipment coordination multiply line-item scrutiny at desk review.
• →Roofing assemblies are complex — multi-layer systems with cover board, insulation, vapor barriers, and attachment methods require documentation beyond surface membrane photos.
• →Multiple trades intersect on commercial roofs — HVAC, electrical, sheet metal, and structural work must be documented for detach-reset, crane, and staging line items.
• →Documentation requirements exceed residential templates — roof plans, moisture surveys, core samples, and manufacturer compliance records are commonly expected on low-slope files.
• →Carrier scrutiny increases with claim size — specialist adjusters, engineer review, and third-party consultants evaluate moisture proof, repairability, and code arguments more aggressively.
• →Business interruption and operational constraints affect production — after-hours access, phased sections, and occupied buildings require contemporaneous access and coordination logs alongside roof evidence.

• →TPO — document heat-weld seam failures, hail punctures, UV chalking vs functional damage, and manufacturer weld requirements; estimating must address insulation and cover board beneath single-ply scope.
• →EPDM — photograph seam adhesive failures, ballast displacement, membrane shrinkage pulls at parapets, and patch history; black membrane hail impacts require close-ups showing substrate exposure.
• →PVC — document heat-welded seams, plasticizer migration, chemical exposure, and color-matching constraints; manufacturer specs often restrict patch size and require full-section replacement.
• →Modified bitumen — capture granule loss, ply separation, hail fractures in cap sheet, and torch-applied repair history; multi-ply systems require layer documentation during core sampling.
• →Built-up roofing (BUR) — photograph blisters, gravel displacement, felts exposure, and flood coat conditions; estimating must address surfacing, insulation, and structural deck condition when wet.
• →Metal roofing — document seam separation, clip damage, hail dents affecting water-shedding, and fastener back-out; standing seam and R-panel systems require profile identification and manufacturer repair limits.
• →Spray polyurethane foam (SPF) — photograph hail impacts showing foam exposure, coating failure, and moisture intrusion at penetrations; recoating requirements and substrate condition drive replacement vs repair disputes.
• →Roof coating systems — document base membrane condition beneath coating, adhesion failures, and whether storm damage affects substrate or coating only; carriers often dispute full system replacement when coating alone is damaged.
• →Index assembly type on every photo label and the roof plan — desk reviewers apply different repairability thresholds by system, and mismatched system identification triggers scope exclusions.

See the Roof Repairability Documentation Guide when carriers approve patch-only scope on systems where manufacturer guidance requires section replacement.

• →Complete safety planning before roof access — fall protection, parapet heights, skylight hazards, and written job hazard analysis documented for crew and carrier review.
• →Confirm roof access authorization with property management or building engineer — log access times, escorts, and after-hours restrictions contemporaneously.
• →Capture drone imagery and ground photography when safe and permitted — establish building context, elevation overview, and areas inaccessible by foot traffic.
• →Photograph roof overview from each corner and mid-field — wide shots showing drainage paths, equipment layout, and primary damage zones before close-up work.
• →Assign consistent zone labels on the roof plan before detailed documentation — section names carry through photos, moisture maps, cores, and estimate lines.

• →Document test squares or sample areas on membranes when hail or impact surveys are required — location, dimensions, and impact counts tied to roof plan zones.
• →Perform moisture surveys when interior leaks, ponding, or storm openings suggest wet insulation — scan grids mapped to roof plan with readings and anomaly flags.
• →Core sample when moisture survey or visual evidence indicates wet substrate — photograph each core location, layer stack, and wet insulation before closing; retain samples per manufacturer protocol when testing.
• →Conduct interior inspections below affected zones — ceiling tiles, deck underside, and mechanical rooms with moisture readings tied to roof plan coordinates.
• →Create ceiling maps linking interior stains and readings to roof zones, drains, and penetrations — water migration paths support scope beyond visible roof surface damage.
• →Document roof-mounted mechanical equipment — HVAC curbs, duct openings, refrigerant lines, and electrical disconnects with detach-reset condition and storm displacement.

Moisture survey and core sampling costs are recoverable on many commercial files when contemporaneous results justify wet insulation replacement — document authorization requests and results in the claim file.

• →Photograph every documented condition with overview and close-up pairs — desk reviewers cannot approve scope they cannot locate on the roof plan.
• →Annotate photos with zone labels, direction, and date — use consistent naming that matches the carrier sketch and estimate room or section labels.
• →Record field measurements for parapets, crickets, saddles, and cut-up geometry omitted from aerial reports — reconciliation tables save adjuster time at review.
• →Document seams, flashings, coping, edge metal, expansion joints, drains, and scuppers as separate indexed categories — not merged into generic roof damage folders.
• →Capture interior water migration with ceiling maps and moisture readings correlated to roof zones — interior evidence supports insulation and deck scope carriers omit from exterior-only inspections.
• →Photograph temporary repairs and emergency dry-in before permanent work — date-stamped mitigation records support emergency scope lines and timeline arguments.
• →Attach manufacturer specifications, warranty requirements, and code citations as supporting documents — not as substitutes for contemporaneous field photos.

• →Functional damage — document loss of water-shedding integrity, open seams, punctures through membrane, and displaced flashings; distinguish from cosmetic surface marks that do not affect performance.
• →Cosmetic damage — record hail dents, coating scuffs, and minor discoloration separately; carriers deny replacement when only cosmetic conditions are documented without functional impairment.
• →Repairability — photograph conditions exceeding manufacturer patch limits, saturated insulation, and multiple impact areas per section; cross-reference the Roof Repairability Documentation Guide for brittle or aged membrane disputes.
• →Moisture intrusion — moisture survey maps, core sample photos, and interior readings must align on wet insulation scope — unsupported wet claims are commonly excluded at desk review.
• →Manufacturer guidance — attach spec sheets showing maximum patch size, compatible materials, and required replacement triggers when disputing carrier patch-only scope.
• →Testing results — include core sample moisture content, adhesion tests, and thermographic survey reports indexed to roof plan zones with date and technician identification.
• →Prior repairs — document existing patches, overlays, and maintenance history before attributing conditions to the reported storm — carriers separate pre-existing from storm-created damage.
• →Storm-created openings — photograph displaced metal, punctured membranes, and broken skylights with storm date context and weather verification when available.
• →Emergency mitigation — record temporary dry-in, flood coats, and tarp installations with materials, labor, and location before permanent scope is negotiated.

• →Roof measurements — field dimensions, drone reports, and cut-up geometry reconciled to carrier sketch with variance table for crickets, parapets, and multi-level sections.
• →Waste factors — document cut-up complexity, irregular perimeters, and equipment obstructions that increase material waste beyond standard macros.
• →Tear-off — progressive photos showing existing layers, insulation condition, and deck exposure; layered systems require layer count documentation during removal.
• →Insulation replacement — moisture survey maps and core samples indexed to wet zones; photograph removed wet insulation with thickness and type labels.
• →Cover board — document existing cover board type, damage, and manufacturer requirement for replacement when insulation is removed on single-ply systems.
• →Fasteners and adhesives — record attachment method, pull-off conditions, and code-driven reattachment requirements when re-cover is not permitted.
• →Flashings and sheet metal — index bent, cracked, or displaced metal to specific wall, curb, and edge locations; photograph custom-fabricated conditions beyond standard flashing macros.
• →Crane and material staging — document building height, access constraints, street closure needs, and rooftop staging limitations with photos and site logistics notes.
• →HVAC detach and reset — photograph each unit, curb, and disconnect before removal; document refrigerant recovery, rigging, and reset requirements with equipment inventory.
• →Electrical disconnects — record units requiring licensed disconnect and reconnect with panel locations and permit requirements where applicable.
• →Safety requirements — document parapet heights, tie-off points, warning line setups, and OSHA-driven protection that supports safety line items on commercial production.

See the Roof Measurement Documentation Guide for measurement file standards and the Roofing Supplement Checklist before submission.

• →Residential shingle photo templates applied to low-slope membrane claims — missing seam, flashing, and insulation documentation.
• →No roof plan or zone labels — reviewers cannot correlate photos, moisture maps, and estimate sections.
• →Moisture survey performed without mapped results tied to insulation scope — wet insulation charges denied as unsupported.
• →Core samples taken without location photos and layer documentation — sample results disconnected from estimate quantities.
• →HVAC and equipment detach-reset omitted from photo index — mechanical lines cut at carrier review despite field requirements.
• →Interior ceiling damage not mapped to roof zones — water migration scope excluded when exterior photos alone are submitted.
• →Temporary emergency repairs not documented before permanent scope — mitigation timeline disputes weaken emergency line items.

• →Safety plan and roof access authorization on file before inspection begins.
• →Roof plan with zone labels consistent across photos, moisture maps, cores, and estimate.
• →Overview and close-up photo pairs for field damage, seams, flashings, coping, edge metal, joints, drains, and penetrations.
• →Drone and ground photography captured when permitted — building context and inaccessible areas documented.
• →Moisture survey and core sampling complete where wet insulation is suspected — results mapped to zones.
• →Interior inspection and ceiling mapping correlated to roof zones and water migration paths.
• →Mechanical equipment inventory with detach-reset photos and disconnect documentation.
• →Measurements reconciled to carrier sketch — cut-up geometry and parapet dimensions recorded.
• →Manufacturer specs, test results, and code citations attached as supporting documents.
• →Contractor narrative indexed to estimate lines — scope comparison table complete.
• →Supplement package reviewed against Roofing Supplement Checklist before submission.