The carrier's scope of loss is the single most important document on a storm job, and most reps barely read it. They flip to the bottom number, see whether it's enough to start, and move on. That's how money gets left on the table — because the gaps that turn into supplements are hiding in lines you skipped.
This guide walks you through a scope the way an experienced supplementer reads it: top to bottom, line by line, looking for what's there, what's underpriced, and what's missing entirely. Get good at this and you'll catch real money on jobs you'd otherwise close short.
What a scope of loss actually is
A scope of loss is the carrier's itemized estimate of what it costs to repair the covered damage. On most storm jobs it's built in Xactimate, the pricing software the majority of carriers use. Each line is a task — tear off, install, flashing, gutters — priced by the local unit cost the carrier's database carries for that month.
The thing to understand is that the scope is the carrier's opening position, not the final word. It reflects what the adjuster saw, what they thought to include, and what their software defaulted to. Adjusters are human, they work fast, and they don't know your roof the way your crew does. The scope is a starting estimate you're allowed to challenge with documentation. If you treat it as fixed, you've already lost.
If you're newer to the full claim lifecycle, it's worth stepping back to see where the scope fits in the complete storm damage claims process before you start tearing the document apart.
Read the header before the line items
Before you look at a single roofing line, read the top of the document. The header tells you the rules of the whole job.
- Date of loss. This is the storm event the claim is tied to. Pricing is pulled for that period, and coverage hinges on it. If the date is wrong or vague, flag it.
- Policy number and coverage type. Confirm you're working the dwelling, not a separate structure or contents claim.
- Deductible. This is the homeowner's out-of-pocket share. It gets subtracted from what the carrier pays, not from the total cost of the job. Know it before you talk money with the owner.
- Price list / pricing date. Xactimate price lists update regularly. If the scope is running on an old list, your costs may have moved since the estimate was written — that alone can justify a revision.
Get these four wrong and everything downstream is off. Get them right and you know exactly what you're working with.
The money columns: ACV, RCV, depreciation, and the net
This is where most reps get confused, so slow down here. A typical scope summary shows a few numbers stacked at the bottom, and they are not the same thing.
| Term | What it means |
|---|---|
| RCV | Replacement cost value — what it costs to redo the work today, no deductions |
| Depreciation | Wear-and-age value the carrier holds back from RCV |
| ACV | Actual cash value — RCV minus depreciation |
| Deductible | The homeowner's share, subtracted from the payout |
| Net claim (first check) | Usually ACV minus the deductible |
The relationship that matters: RCV minus depreciation equals ACV. The carrier's first check is typically the ACV minus the deductible. The depreciation they held back isn't gone — on most replacement-cost policies it's recoverable depreciation, released as a second check once you finish the work and prove it. If you don't understand the difference between ACV and RCV, you'll either underbid the job or scare the homeowner with a number that looks too low. The first check is supposed to look small. That's the system working as designed.
A practical move: total the depreciation line. That's the second check you're working toward. Knowing it up front changes how you scope completion paperwork and how you talk to the owner about the back half of the money.
Going line by line: what to check on every item
Now the actual reading. Work down the roofing section and ask three questions of every line: Is the quantity right? Is the price right? Is anything that belongs next to this line missing?
Quantities. Check the squares against your own measurement. Check waste factor — steep and cut-up roofs need more than the default. Check that ridge, hip, and starter lengths match the roof geometry. A scope built off a quick eyeball or an aerial report can run light on linear-foot items.
Activity types. Look at whether each line is "replace," "detach and reset," or "repair." Carriers sometimes scope a detach-and-reset where the component can't survive removal and actually needs replacement. Vents, pipe boots, and flashing are common offenders.
Pricing. Compare unit prices against the current local price list. If the scope used an outdated list or a generic line where a more specific one applies, you have a documented basis to revise.
The goal isn't to nitpick every penny. It's to build an accurate picture of the real job and let the difference between that and the scope speak for itself.
Where the gaps live
Once you can read the scope cleanly, finding the gaps gets easier. These are the items most often missing or underscoped — the ones that become supplement line items:
- Code-required upgrades. Drip edge, ice-and-water shield, and proper underlayment are frequently mandated by local code but left off the initial scope. If code requires it, it belongs on the estimate.
- Steep and high charges. Roofs over a certain pitch or height carry legitimate additional labor that default scopes routinely omit.
- Flashing and accessories. Step flashing, counterflashing, pipe boots, and ridge vent that can't be reused after tear-off.
- Detach and reset. Solar, satellite dishes, gutters, and detached structures that have to come off and go back on.
- Layers. A second layer of shingles means a second tear-off line. Easy to miss on a quick inspection.
- Disposal and access. Dumpster, debris haul-off, and difficult-access charges when the property warrants them.
Every one of these is a real cost you'll incur on the job. If it's on the roof and not on the scope, it's a gap.
Turn the gaps into a supplement, not an argument
Finding gaps is half the work. Getting them paid is the other half — and that's a documentation game, not a debate. Photos tied to each missing line, your own measurements, the code section that requires the upgrade, and current pricing. A supplement that reads like a clean revision of the carrier's own estimate gets approved far more often than one that reads like a complaint.
We go deep on building that case in our guide to writing roofing supplements that get approved, but the foundation is always the same: you can only supplement what you can prove, and you can only prove it if you read the scope closely enough to know what's missing in the first place.
Build a habit, not a one-off
The contractors who consistently capture full claim value don't read the scope once and file it. They read it the same way every time — header, money columns, line by line, then gaps — so nothing slips. Make it a standard step in your file workflow and a checklist your reps actually follow. Catching one missing code line per job adds up faster than chasing new leads to make up the difference. Whether you keep this in a insurance-restoration roofing CRM or a clipboard, the discipline is what pays.
Reading a scope well is a skill, and like any skill it gets faster with reps. The first few take time. After a few dozen, you'll spot a light flashing line or a missing steep charge in seconds — and that speed is money.
This article is general information for restoration contractors, not legal or insurance advice. Coverage, code requirements, and carrier practices vary — confirm specifics for your jurisdiction and policy.
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