How to Supplement a Roof Claim in Xactimate

How do you write a roof supplement in Xactimate that carriers reconcile quickly?

A roofing supplement is an itemized request for labor, materials, or code-mandated work uncovered after the carrier writes their opening scope. Getting it approved without weeks of friction comes down to three mechanics: itemize omissions line by line using standard trade metrics (SQ, LF, SF); attach clear photo documentation with roof diagrams; and deliver an updated ESX file that highlights the delta against the original paperwork.

Skip the arguments over unit pricing. Reconcile your scope directly against the local monthly price list, account for manufacturer specs (starter strip, drip edge, ridge cap), and tie missing components to photographic evidence from the tear-off or initial walk. Source: Storm Xactimate.

What is a roofing supplement on an insurance claim?

A supplement bridges the gap between an adjuster's preliminary estimate and the physical realities of the roof. Adjusters often write initial scopes from a brief walk or a desk review. Once crews begin tear-off, hidden realities surface: rotted decking, unpermitted historical layers, municipality code upgrades, or complex step-flashing details.

Treat supplements as technical corrections, not pricing battles. You are not disputing what Xactimate charges per square of architectural shingles; dynamic regional price lists dictate that figure. A valid supplement corrects quantities, includes omitted building components, or accounts for real-world labor factors.

Timing the claim's accounting phases is just as critical:

• Actual Cash Value (ACV): Released up front based on depreciated initial scope values.
• Replacement Cost Value (RCV): Paid out only after work is completed and verified.
• The Supplement Window: Any missing materials or required labor must be documented and submitted before submitting the final RCV invoice.

Standard carrier guidelines and the Florida Office of Insurance Regulation require contractors to substantiate every added line item with accurate measurements and date-stamped photos.

How do you compare an adjuster's scope to an ESX file?

When an adjuster's scope falls short, running their paperwork against a complete ESX file is the fastest way to isolate the omissions. Because the ESX file holds raw Xactimate project data—sketch geometry, line items, and selector codes—a side-by-side comparison pinpoints errors within minutes.

Start with roof geometry. Compare the squares (SQ) allocated for tear-off and replacement. Run the adjuster's linear footage for valleys, eaves, and rakes against a certified aerial measurement report from EagleView, Hover, or GAF QuickMeasure. If the adjuster pulled tape by hand, manual errors almost always show up in these totals.

Next, examine waste calculations. Adjusters routinely apply a flat percentage across the entire roof surface, but roof geometry dictates true cut waste. A 10/12 hip roof cut up by valleys and dormers produces far more cut waste than a simple 4/12 gable. Inspect the Xactware / Verisk category code (RFG) structure to verify that the waste factor reflects the roof's true architectural complexity.

Finally, match category and selector codes line by line. If the carrier paid to tear off laminated shingles but omitted the labor to remove adhered ice and water shield, the missing selector code stands out immediately against a properly built ESX file.

Which Xactimate roofing line items do adjusters miss most often?

Writing a clean supplement means knowing which selector codes adjusters drop most frequently. Overlooking three or four of these on a 40 SQ roof can wipe out a job's profit margin. Back every item using installation manuals from manufacturers like GAF, Owens Corning, or CertainTeed.

• Starter course (RFG ARST or RFG STRTR): Field bundles do not cover starter shingles. Starter course lines both eaves and rakes, demanding standalone labor and material line items.
• Drip edge (RFG DRIP): Adjusters frequently drop perimeter drip edge entirely or miscalculate the linear footage. Always photograph and specify the installed profile size, since oversized profiles require different selector codes than standard narrow edges.
• Ice and water barrier (RFG IWS): Low-slope transitions, valleys, and eaves require self-adhering modified bitumen underlayment. If the scope defaults to standard synthetic or felt underlayment across the whole deck, calculate the LF or SF of required barrier and supplement the difference.
• Steep and high charges (RFG STEEP, RFG STEEP>, RFG HIGH): Pitches between 7/12 and 9/12 trigger RFG STEEP, while 10/12 to 12/12 slopes require RFG STEEP>. Two-story access demands RFG HIGH. Apply these modifiers to both tear-off and application lines to reflect reduced labor productivity and safety setups.
• Ridge cap shingles: Hips and ridges require dedicated hip and ridge caps quantified in linear feet. Adjusters occasionally assume cap shingles are absorbed by the field shingle waste percentage; manufacturer instructions show they are not.
• Overhead and Profit (O&P): Multi-trade jobs require supervision. If the project pairs reroofing with trades like seamless gutters, exterior paint, or interior drywall repairs, document the coordination needed to substantiate 10 & 10.

How do you document code upgrades without crossing into legal advice?

Roofing contractors are not public adjusters. Negotiating claim settlements, interpreting policy provisions, or offering legal opinions crosses into unauthorized public adjusting. Your job is to present physical field facts and applicable building mandates.

Anchor physical conditions directly to municipal requirements. If existing drip edge or underlayment fails current code, take clear photos of the installed component with a tape measure visible. Submit that photo alongside an excerpt from the Florida Building Code (Residential, Chapter 9: Roof Assemblies).

State the condition neutrally: "Existing drip edge has a 1.5-inch deck flange. Attached Florida Building Code Section 905.2.8.5 mandates a minimum 2-inch flange."

This frames the issue as a construction fact rather than a policy dispute. If the carrier questions enforcement, refer them to the local building department for jurisdictional verification.

What is the 25% rule for roofing in Florida?

Florida's legacy "25% rule," historically found in the Florida Building Code Existing Building volume, mandated total roof replacement if more than 25% of a roof section suffered damage within a 12-month period.

Recent updates under Florida Statutes (Title XXXIII) modified how that threshold applies. If an existing roof was permitted and installed under recent editions of the Florida Building Code, full replacement is not automatically required, and localized repairs may be permitted.

Estimators should stick to arithmetic, not statutory debate:

1. Pull certified aerial measurements to lock down total roof square footage.
2. Photograph creased, torn, or lifted shingles across all slopes.
3. Map the exact square footage of damaged areas against undamaged planes.

Deliver the math. Let the carrier, building official, and policyholder determine statutory application, and remind the property owner to confirm current interpretations with their local building department.

How do you maintain supplement speed during active storm seasons?

When storm volume hits, contractors with organized paperwork get paid, while those buried in administrative backlogs stall out.

Standardize photo intake before anything else. Require field crews to work through an inspection checklist before leaving the site: roof overviews, pitch gauge readings, shingle gauge readings, drip edge profiles, valley details, decking condition from the attic space, and all flashings. Missing photos stop an estimate in its tracks.

Ditch manual tape measurements. Order an EagleView, Hover, or GAF QuickMeasure report immediately so the CAD-derived geometry is ready before you start drafting the estimate.

Submit a complete package on the first pass. Send the adjuster an organized PDF with embedded photos alongside the native ESX file. An ESX file lets desk adjusters import your lines directly into their own Xactimate estimate. That saves them from manual data entry and cuts approval turnaround times dramatically.

Track every claim through clear operational checkpoints: Received, Measuring, Building, Review, and Delivered. Transparent file stages keep supplements moving and protect cash flow when call volumes spike.

How Storm Xactimate handles this for you

Storm Xactimate removes the estimating bottleneck by turning field photos, claim paperwork, and aerial measurements into carrier-ready Xactimate files. If you do not have an aerial report, Storm Xactimate provides the measurement automatically. Every scope is built using current regional price lists, checked for critical components like starter course, drip edge, and ice and water barrier, and vetted by an experienced estimator prior to delivery.

Within 24 hours of receiving complete job files (measurements plus required site photos), you receive the final estimate PDF branded with your company logo, complete roof diagrams, organized photo sheets, and the raw ESX file. If an adjuster pushes back with an altered scope, upload their response within 30 days of delivery to initiate an included supplement revision round. Every file tracks through distinct stages: Received, Measuring, Building, Review, and Delivered.

Start an estimate with Storm Xactimate.

Frequently asked questions about Xactimate roof supplements

How to supplement a roof claim?

Collect tear-off and damage photos, compare the adjuster's initial scope against certified aerial measurements, identify missing line items (starter, drip edge, ridge cap, or pitch charges), build an updated Xactimate estimate showing the variance, and submit both the PDF and native ESX file to the desk adjuster for reconciliation.

How much should a 2200 sq ft roof cost?

Roof costs are based on roof squares (SQ)—which include pitch factor, overhangs, and cut waste—rather than interior living area footage. A 2,200 square foot home typically requires between 26 and 32 SQ of roofing materials depending on design complexity. In Xactimate, total cost reflects the current monthly regional price list for tear-off, laminated materials, accessories, and disposal.

Can a roofing contractor negotiate an insurance claim?

No. Contractors cannot negotiate coverage terms, interpret insurance policies, or act as public adjusters. They are legally restricted to documenting physical site conditions, specifying required construction labor and materials, and submitting trade-standard estimates based on construction requirements.

Why is having the ESX file important for a supplement?

The ESX file contains the estimate's underlying geometry, line-item codes, and price list data. Sharing the ESX file enables adjusters to merge your scope into their file directly, bypassing manual data entry and speeding up settlement.