The insurance supplement and adjuster playbook: getting paid for the full scope

The claim gets approved, the check comes in, and you tear off the roof, and now you’re staring at rotted decking, a missing kickout flashing, and a ventilation setup that won’t meet code on the reinstall. None of it is on the adjuster’s estimate. This is the moment most of an insurance roofer’s margin is won or lost, and it’s also where the honest operators separate themselves from the ones who end up on a fraud complaint. This guide is about doing it right: getting paid for the full, legitimate scope through supplements, and keeping the adjuster on your side while you do.

If you haven’t read storm damage and insurance claims, start there. That covers honest inspection and staying out of the storm-chaser ditch. This one picks up after approval, on the money.

What a supplement actually is

A supplement is a documented request to add to an already-approved claim scope when the real work exceeds what the original estimate covered. The adjuster wrote the first estimate off a ground inspection or a quick walk. They physically could not see the decking under the shingles, the felt condition, or a flashing detail buried behind siding. When tear-off reveals more, the carrier’s own policy language typically obligates them to pay to restore the property to pre-loss condition and to code. A supplement is how you get that on paper.

Supplements are normal and expected. A good adjuster is not surprised to receive one. They know their first number was an estimate built on incomplete information. What gets you in trouble is not asking for a supplement; it’s asking without proof, or padding one with things that aren’t there.

The line items that are almost always short

Most re-roof estimates come in through Xactimate, the pricing software the majority of US and Canadian carriers use. Xactimate has a line item for nearly everything, priced to regional averages that update periodically. Your job is not to fight the pricing. It’s to make sure every line the job genuinely requires is on the estimate. The items commonly missing from a first-pass estimate:

• Code-required items. Drip edge, ice-and-water shield where the building code mandates it, and other items your local code requires on a reroof. Carriers generally owe code upgrades triggered by the repair, but the amount and any cap depend on the policy’s ordinance-or-law coverage. This varies by policy and jurisdiction, so confirm the coverage before you promise the homeowner it’s covered.
• Decking replacement. Priced per sheet or per board foot, and impossible to know until tear-off. Photograph every rotted or delaminated sheet with a tape measure and the address visible.
• Ventilation. If the existing intake/exhaust won’t meet code or won’t satisfy the shingle manufacturer’s warranty requirements on the reinstall, the corrected ventilation is part of restoring the roof properly, not an upsell.
• Flashing. Step flashing, kickout flashing, chimney and wall flashing, pipe boots. “Reuse existing” is often on the first estimate; if it’s corroded or was never there, that’s a documented add.
• Steep/high charges, multiple layers, and detach-and-reset for solar, satellite, gutters, or HVAC condensers on the roof.
• Waste factor. Cut-up and hip-and-ridge roofs carry more waste than a simple gable. See material waste and margin control for how waste actually eats a job.

Every one of these is legitimate when it’s real. Every one is fraud when it isn’t. The photo is the difference.

Documentation is the whole game

An adjuster cannot approve what they can’t see, and they answer to a file reviewer who wasn’t on site. Give them a package that makes approval the easy decision:

• Photograph in sequence, date-stamped. Before tear-off, during (the moment each hidden condition is exposed), and after. The mid-tear-off photos are the ones that win supplements: rotted decking with a tape measure in frame, the absent flashing, the daylight through the sheathing.
• Measure and label everything. Square footage of decking replaced, linear feet of flashing, count of penetrations. Vague requests get denied; a labeled photo of 14 sheets of delaminated OSB with the measurements gets paid.
• Reference the code section. When you supplement a code item, cite the specific code (and edition) your jurisdiction has adopted. “Required by code” with the section number is far stronger than “required by code.”
• Match the estimate format. If the carrier works in Xactimate, submit your supplement as Xactimate line items, not a handwritten scope on your letterhead. You’re speaking their language and removing friction.
• Keep one clean file per claim. Photos, measurements, the signed contract, the original scope, and your supplement request. If the claim is ever questioned, this file is your protection, the same discipline that protects you on any storm job.

Work with the adjuster, not against them

The roofers who get supplements approved fastest have relationships with adjusters built on never having burned them. Meet the field adjuster on the roof when you can, walk the damage together, and hand them a clean scope. When a supplement comes up mid-job, notify before you cover the work back up. A photo of exposed decking is worth ten emails after it’s shingled over.

Be reasonable and be right. If a line is genuinely disputable, make your case with the documentation and the code reference and let it play out professionally. If you’re wrong on a line, drop it. One padded supplement can cost you every future claim that adjuster or carrier touches. Calm, documented, and honest gets approved. Combative and inflated gets flagged.

The legal line: do not cross it

This is where roofers lose their license or worse, so be precise. Rules vary by state and province; the safe move is to know your own jurisdiction and confirm anything you’re unsure of with a local attorney, not to assume.

• Never waive, rebate, absorb, or “eat” the deductible. The homeowner owes their deductible; that’s the deal with their carrier. Offering to cover it, or inflating the estimate to hide it, is insurance fraud and is explicitly illegal in many US states. Don’t do it, and don’t let a competitor’s “we’ll cover your deductible” pitch pull you into matching it.
• Don’t practice public adjusting without a license. Negotiating the claim value on the homeowner’s behalf, or representing them to the carrier, is regulated public-adjusting activity in most US states and is restricted in Canada too. You document your scope and price your work; the homeowner and their carrier settle the claim amount. Supplementing your own contracted scope with evidence is your business; negotiating the homeowner’s overall settlement is not your lane unless you’re licensed for it.
• Be careful with AOB and contingency agreements. Assignment-of-benefits arrangements, where the homeowner signs the insurance proceeds over to you, are heavily restricted or regulated in a number of states after widespread abuse, and the rules keep changing. If you use any assignment or contingency contract, have it reviewed for your specific state and keep it clean: it documents that work is contingent on approval, it does not hand you the homeowner’s claim to negotiate.
• Get the scope and contingency in writing the same way you would on any job.

None of this is legal advice, and the specifics genuinely differ by jurisdiction. Treat “confirm in your state or province” as a real instruction, not boilerplate.

Retail versus insurance margins

Understand why insurance work feels different on the money. On a retail re-roof you set your own price and sell the value, and your margin is whatever the market and your good-better-best proposal support. On an insurance job the base price is largely set by the carrier’s Xactimate scope. You don’t get to mark it up, so your margin depends almost entirely on (a) capturing the full legitimate scope through supplements and (b) running the job efficiently. A roofer who leaves decking, ventilation, and code items unsupplemented is doing the same labor for materially less money, and often doesn’t realize it until the year-end numbers come in.

That’s why the two belong on separate rails. Retail gets the three-tier sell; insurance gets the approved scope plus complete, documented supplements, and any genuine upgrade the homeowner wants beyond like-for-like gets billed to the homeowner out of pocket, itemized clearly, never buried in the claim. Track insurance and retail gross margin separately in your numbers (know your numbers); if insurance jobs are quietly underperforming, unclaimed scope is usually the reason.

The bottom line

Getting paid for the full scope on an insurance re-roof isn’t about beating the adjuster. It’s about out-documenting the problem. Photograph the hidden conditions the moment they’re exposed, measure and label everything, supplement in the carrier’s own format with code references, and build the kind of clean file that makes approval easy. Stay dead-honest: real scope only, no deductible games, no unlicensed negotiating on the homeowner’s behalf. Do that and you protect the two things that keep an insurance roofer in business: your margin and your standing with the adjusters who send you the next claim.

General information for roofing business owners, not legal, insurance, or financial advice. Insurance and public-adjusting rules vary by state and province. Confirm the specifics for your jurisdiction.