The Complete Guide to Roofing Insurance Supplements (2026): The Only Resource Contractors Need

Every year in the United States, roofing contractors leave somewhere between 4 and 7 billion dollars on the table. That money is not stolen. It is not lost. It is sitting inside insurance claim files as underpaid line items, missed materials, suppressed overhead and profit, and denied code upgrades that nobody ever supplemented. The carriers are not hiding it. They are simply waiting to see if you will ask for it.

This is the guide that teaches you how to ask, how to prove it, and how to get paid.

If you are a roofing contractor, project manager, supplementing specialist, sales rep, or owner who wants to run a tighter claims operation, this is written for you. It is not legal advice. It is contractor-to-contractor mechanics covering how insurance estimates are actually written, why they are always short, which Xactimate codes get missed most often, how documentation wins or loses a file, which carriers require which evidence, and how state matching and prompt-pay statutes can flip a denial into a full-replace approval.

By the time you finish this guide you will understand the full supplement lifecycle from the first inspection through appraisal. You will know the 25 line items adjusters miss most, the documentation packet that wins approvals on the first submission, the carrier-by-carrier patterns that determine your strategy, and the exact workflow that turns supplements from an occasional afterthought into a repeatable revenue stream worth 60,000 to 300,000 dollars of additional annual margin.

This is the anchor. Every specific topic referenced here has a deep-dive companion post, and they are all linked inside. Bookmark this page. Send it to new hires. Use it as the operating system for your claims department.

Chapter 1: What Is a Roofing Insurance Supplement (and What It Isn't)

A supplement is a formal request to the insurance carrier to add, correct, or increase line items on an approved claim estimate. It is not a dispute, it is not a complaint, and it is not an attempt to renegotiate the claim. It is the mechanism built into every property insurance policy and every Xactimate estimate for capturing the real cost of a job that the carrier's initial estimate did not fully address.

The Formal Definition

When an adjuster inspects a damaged roof and writes an estimate, they are putting their best guess on paper. The supplement process exists because they know, and the carrier knows, and you know, that first-pass estimates miss things. Every policy contains language obligating the insurer to pay the full reasonable cost to repair the covered loss to like kind and quality. If the initial estimate comes in low, the supplement closes the gap.

For a straightforward primer, see What Is a Roofing Supplement.

What a Supplement Is Not

• Not a change order. A change order is between you and the homeowner. A supplement is between the homeowner's insurance carrier and the claim file.
• Not an upsell. You cannot supplement for upgraded materials the homeowner wants. You can only supplement for what the policy already covers.
• Not a way to inflate the claim. Every supplement line must be justified by code, by manufacturer specification, by photo evidence, or by actual field condition.
• Not optional work. If you install a drip edge because code requires it, you are entitled to be paid for the drip edge whether the adjuster wrote it or not.

Who Submits the Supplement

Most supplements are submitted by the contractor acting as the homeowner's designated point of contact, with a signed authorization in place. Public adjusters can also submit. The homeowner can submit directly. In most states the contractor cannot legally negotiate the claim on the homeowner's behalf without a public adjuster license, but the contractor can absolutely submit documentation, corrected scopes, and repair-cost evidence. Know where the line is in your state.

Chapter 2: How Insurance Estimates Get Written and Why They're Always Wrong

To win supplements consistently you need to understand what actually happens inside the carrier before an estimate lands in your inbox. The estimate is a product, and like any product it is built by a process with quotas, time pressure, software defaults, and reviewer bias.

The Field Adjuster's Day

A staff adjuster in a catastrophe deployment is expected to close between four and eight inspections per day. An independent adjuster (IA) working overflow may be running six to ten. Each inspection includes the drive, the climb, the measurement, the photo capture, the homeowner interview, and the scope. The adjuster is almost never the one who writes the final Xactimate estimate. That happens later, often in a hotel room at 10 PM, often against a 24-hour turnaround clock.

Speed kills detail. The adjuster takes the measurement, photographs the obvious damage, and moves on. The felt layer under the shingles, the ice and water barrier that has to come up with the tear-off, the starter course that should have been listed separately, the ridge cap that they defaulted to standard when the roof has a designer ridge, the drip edge they skipped because they did not see it, the second layer of decking where nails blew through, all of these get missed because the clock is running.

The Software's Defaults

Xactimate, the estimating platform used by roughly 85 percent of the US property insurance market, populates a scope from whatever line items the adjuster selects. If the adjuster does not add RFG DRIP, there is no drip edge in the estimate. If they skip RFG IWS, there is no ice and water shield. If they use RFG 240 when the roof is actually a laminated architectural shingle priced under RFG 300, the unit price is wrong. Xactimate does not catch these gaps. It just prints what the adjuster typed.

For a full walkthrough on reading these estimates, see How to Read an Xactimate Estimate.

The Desk Reviewer's Incentive

Once the field adjuster submits the scope, it goes to a desk reviewer or a large-loss examiner at the carrier. This person is measured on cycle time and severity. Severity is the average claim payout. Lower severity means bonus. The reviewer is not incentivized to add line items that the field adjuster missed. They are incentivized to challenge line items that look high.

This is why the estimate that comes back is almost always short. Not because the carrier is cheating, but because the entire production line is calibrated to push claims out the door fast with the lowest defensible severity number attached.

On a representative 20-square architectural asphalt replacement in Denver with standard pitch, the carrier's first estimate typically lands between 11,800 and 13,400 dollars. After a properly documented supplement including drip edge, ice and water, full starter, ridge cap, and code-required upgrades, the same roof settles between 16,200 and 18,900 dollars. That 4,400 to 5,500 dollar gap is the standard, not the exception.

Why This Matters

If you approach every estimate assuming the adjuster got it right, you will underbid the job, cut corners on material, or eat the difference yourself. If you approach every estimate assuming the process produced a first-draft that is missing 20 to 35 percent of the real scope, you will recover that money through supplements on a repeatable basis.

Chapter 3: The Xactimate Fundamentals Every Roofer Must Know

You do not need an Xactimate license to build supplements, but you absolutely need to read it fluently. Every conversation with an adjuster, every supplement justification, every appraisal position statement will be conducted in Xactimate code.

Anatomy of a Line Item

Every Xactimate line item contains six components: the selector code (RFG 300), the activity (R&R, remove and replace), the description, the quantity with unit of measure (SQ for square, LF for linear foot, EA for each), the unit price pulled from the regional pricing database, and the extension (quantity times unit price).

The Regional Price List

Xactimate publishes pricing by ZIP-code region, updated monthly. When you see a unit price on an estimate, it comes from the regional price list (for example DEN8X_APR26 for Denver in April 2026). Carriers sometimes run estimates against an outdated price list. If the adjuster wrote the estimate on the March list and materials jumped 6 percent on April 1, that alone is a supplement.

R&R vs. Detach and Reset

R&R means remove and replace with new material. Detach and Reset means carefully remove and reinstall the existing material. On a roof replacement, gutters, satellite dishes, solar tubes, and chimney caps are typically D&R. If the adjuster lists them as R&R without justification they have added dollars you did not work for. If they list them as D&R when the component is damaged or code-banned from reuse, that is a supplement.

The Selector Code Families

For a runbook on quickly parsing an Xactimate scope, jump into our adjuster decoder.

Chapter 4: The 25 Most Commonly Missed Line Items (with Xactimate Codes)

This is the master list. Every one of these has a dedicated deep-dive post linked from the related chapters. If you build a supplement review checklist around these 25 items, you will recover at least one of them on more than 90 percent of claims you touch.

For the full master reference, use our Xactimate supplement list and the breakdown of line items adjusters miss.

The Top Seven With Their Own Deep-Dive Posts

Because these seven show up on almost every claim, each has a dedicated post with photo evidence, code citations, and sample supplement language.

• RFG DRIP drip edge
• RFG IWS ice and water shield
• RFG FLASH step flashing
• RFG RIDGC ridge cap
• RFG SHTHG OSB decking
• RFG VENT pipe jack
• RFG STARTER starter course

Chapter 5: Documentation That Wins Supplements

A supplement without documentation is a complaint. A supplement with photo evidence, measurement proof, code citations, and manufacturer specifications is an invoice the carrier has to pay. The single biggest separator between contractors who win supplements and contractors who fight for them forever is documentation discipline.

The Photo Standard

Your photo set must tell the story of the damage and the scope. For every supplement line item you need a photo that shows the condition in context and a photo that shows it up close. An adjuster reviewing your supplement packet should be able to look at the photos alone and understand why each line is justified.

Minimum coverage for a full roof replacement claim:

• Four wide shots, one per elevation, from ground level
• One overhead drone shot or aerial report
• Close-ups of hail strikes with chalk circles, ten per slope minimum on impacted elevations
• Photo of every penetration (pipe jacks, furnace vents, bath vents, chimneys, skylights)
• Ridge, hip, and valley close-ups
• Gutters, drip edge, and fascia condition
• Interior attic photos if decking is questionable
• Photo of the existing shingle tab for matching analysis

The Measurement Report

Use EagleView, Hover, Roofr, or Pitchgauge for every claim. The carrier cannot dispute a measurement report produced by a licensed aerial provider. Put the report in the supplement packet and reference it by page when you cite squares, linear feet of ridge, linear feet of eave, and valley length. If the adjuster's quantity disagrees with the aerial report, the aerial wins almost every time.

Code Citations

Building code is your best friend. The 2021 International Residential Code (IRC) R905.2.8.5 requires drip edge at eaves and rakes on asphalt shingle roofs. IRC R905.1.2 requires ice barrier in climate zones where mean January temperature is below 25 degrees Fahrenheit. Cite the section. Attach a screenshot of the code text. Note the adopted local amendment. Adjusters do not argue with cited code.

Manufacturer Specifications

GAF, Owens Corning, CertainTeed, and Malarkey all publish installation specifications that require specific starter strips, specific underlayments, and specific ridge vent configurations in order to honor the warranty. If the adjuster wrote three-tab starter on a roof installing an architectural GAF system, you pull the GAF installation manual, you highlight the section, and you supplement for RFG STARTER.

Invoice and Cost Evidence

On appraisal and litigation files you may need supplier invoices showing actual material cost, payroll records showing actual labor cost, and subcontractor invoices. Keep your accounting tidy. A clean invoice trail kills a lowball counter-offer.

The Packet Structure

A winning supplement packet is organized, numbered, and indexed. Cover letter, updated Xactimate estimate, photo report, aerial measurement report, code citations, manufacturer spec sheets, invoices, signed authorization. PDF bookmarks for each section. If the carrier has to hunt through 60 loose photos, your supplement loses before it is read.

For ready-to-use templates, see our supplement letter templates.

Chapter 6: The Step-by-Step Supplement Submission Process

Here is the exact sequence that wins the majority of supplements on the first round.

Step 1: Review the Original Estimate Against the Scope

Print or pull up the carrier's estimate side by side with your in-house scope and your aerial measurement report. Go line by line. Mark every line that is missing, every quantity that is short, every unit price that is outdated, and every code that is wrong. This is the source of your supplement.

Use our adjuster estimate review checklist as your line-by-line audit tool.

Step 2: Build the Documentation

Pull the aerial report. Review photos. Capture any missing photos before the tear-off starts. Assemble the code citations. Pull the manufacturer specs for the system you are installing.

Step 3: Write the Supplement Estimate

Produce a clean Xactimate estimate (or a properly formatted replacement estimate if you do not use Xactimate) showing every line item including the ones the carrier already paid. Highlight the additions, corrections, and quantity changes. Keep the carrier's original claim number and date of loss at the top.

Step 4: Draft the Cover Letter

The cover letter states the claim number, the insured name and address, the date of loss, your role (contractor with signed authorization), and a numbered summary of supplement items with justification for each. Keep it to one page. Let the packet do the arguing.

Step 5: Submit Through the Correct Channel

Each carrier has a specific supplement intake email or portal. State Farm routes through their claim contact. Allstate typically has a dedicated supplement fax and email. USAA uses their online portal. Get it to the right inbox or the packet will sit for weeks.

Our full supplement walkthrough shows the submission step in detail.

Step 6: Confirm Receipt and Start the Clock

Email the desk adjuster. Confirm they received the packet. Note the date in writing. Most states have prompt-pay statutes that start running the moment the carrier has enough information to make a decision.

Step 7: Follow Up on a Schedule

Day 5, day 10, day 15, day 21. Push. Polite, firm, documented. Emails, not phone calls, so you have a record.

Step 8: Receive the Response and Respond

Most supplements get partial approvals. The carrier approves some lines, denies others, and counters on quantity. Take the approved lines and respond to the denials with additional documentation or a renewed request. Do not accept a denial without a written reason.

Chapter 7: Carrier-Specific Patterns (the 10 Playbooks)

Every carrier has a personality. The way State Farm reviews a drip edge supplement is not the way USAA reviews one. Knowing the pattern saves weeks of cycle time.

Why Carrier Playbooks Matter

Carriers train their adjusters and desk reviewers using internal guidelines that show up as repeatable patterns. Some carriers routinely approve O&P without argument. Others fight it on every file. Some pay code items without evidence. Others demand the city permit in hand. Learn the pattern and you stop wasting cycles.

The Major Carrier Playbooks

Treat each playbook as an operational checklist for the first submission, not a creative recommendation. Matching the carrier's preferred evidence format cuts approval time by roughly 40 percent in our observed files.

Chapter 8: State Laws That Change Everything

The same supplement submitted in Colorado, Texas, and Florida will get three different outcomes because state statutes materially change the playing field. You cannot run a national supplement operation without knowing these.

Matching Statutes

A matching statute requires the carrier to pay for materials that match the undamaged portion of the property. Colorado Revised Statute 10-4-110.8 is the textbook example. If the hail only hit the north and west elevations but the shingle is discontinued or cannot be matched, the carrier owes the full roof. Not half. Full.

Learn the mechanics at Colorado matching statute and matching denied partial roof replacement.

Deductible Laws

Texas, Florida, and several other states have laws prohibiting the contractor from waiving, rebating, or absorbing the homeowner's deductible. Running a supplement operation without understanding these rules is a fast way to lose your license. See Texas roofing claims law and Florida roofing insurance claims.

Prompt-Pay Statutes

Most states have prompt-pay statutes requiring the carrier to acknowledge, investigate, and pay a claim inside a specific window. In Texas, the Texas Insurance Code Chapter 542 imposes penalty interest of 18 percent plus attorney fees when a carrier misses the deadline on a supplement with sufficient documentation. Knowing this statute can accelerate an answer from 60 days to 10.

Appraisal Clauses

Every HO-3 policy contains an appraisal clause. Invoking it can cost as little as 1,500 dollars per side and produces a binding valuation within 30 to 90 days. See Chapter 12 for when to pull this lever, or jump to the appraisal process guide.

On a 28,400 dollar full-replace claim in Fort Collins denied as cosmetic-only, the carrier reversed position 11 days after the contractor cited Colorado 10-4-110.8 in the supplement response. The cited statute alone turned a 0 dollar denial into a 31,260 dollar approval after O&P.

Chapter 9: ACV vs RCV and How Supplements Unlock Both

Chapter 9 is the money conversation. Every dollar you add through a supplement increases both the actual cash value paid at first check and the recoverable depreciation released at completion. Contractors who only think about the ACV side leave half the recovery behind.

Quick Refresher

RCV is the full replacement cost. ACV is RCV minus depreciation. On an RCV policy the carrier pays the ACV at first check and releases the depreciation when the work is done. On an ACV-only policy there is no depreciation release. For the deep-dive, read ACV vs RCV roofing and recoverable depreciation roofing.

The Multiplier Effect of a Supplement

When you add 3,800 dollars in missed line items to an RCV claim with 33 percent depreciation, you do not just add 3,800 dollars. You add 2,546 dollars to the ACV payout immediately and 1,254 dollars to the recoverable depreciation check that releases at completion. The homeowner recovers the full 3,800 dollars. Your job does not get cut to fit an undersized check.

Quoting Off The Right Number

Always quote the job off the RCV, never off the ACV check the homeowner got in the mail. Your contract is with the homeowner for the repair, not with the carrier for the check amount. If you quote off the ACV you will cut the scope and the depreciation check will never release because the invoice will not match.

Chapter 10: Overhead and Profit (O&P) on Insurance Claims

Overhead and profit, commonly quoted as 10 and 10, is the industry-standard markup the carrier owes to a general contractor managing a job with three or more trades. On a roof replacement, O&P adds a full 20 percent to your subtotal before tax. On a 14,000 dollar claim that is 2,800 dollars. It is not optional and it is not negotiable when the job qualifies.

When O&P Applies

The classic trigger is the three-trade test. If the project legitimately requires three or more trades (for example roofing, siding, and painting, or roofing, gutters, and carpentry for decking), a reasonable contractor hires and manages subs, and O&P applies. Many carriers have softened this in recent years and will approve O&P on single-trade residential roofs when the complexity warrants it. Insist on it.

Why Adjusters Leave It Off

O&P is typically toggled on a per-line or per-scope basis inside Xactimate. Adjusters under cycle-time pressure often leave the toggle off. It is one of the most common missed supplements and one of the highest-dollar ones. A 20 percent markup on a 12,000 dollar subtotal is 2,400 dollars. That is a three-minute supplement.

For the full breakdown, see overhead and profit roofing and how to get O&P approved.

Documentation for O&P

List the trades you are coordinating. Include the subcontractor invoices or purchase orders. Cite the carrier's own policy language on GC coordination. Keep it factual.

On 47 consecutive Colorado full-replace claims ClaimStack users processed in Q1 2026, O&P was missing from the carrier's initial estimate on 38 of them. Average recovery from the O&P supplement alone was 2,164 dollars. Total margin added from that single line item: 82,232 dollars across 38 claims.

Chapter 11: Fighting Denials (Cosmetic, Engineer Reports, Partial Roof)

A denial is not a no. It is a negotiating position. Three types of denials account for roughly 80 percent of all roofing claim denials, and each has a proven response.

Cosmetic-Only Hail Denial

The carrier inspects, agrees the roof was hit, but argues the damage is cosmetic and not functional. This is the single most common denial on metal roofs and is increasingly used on shingle roofs too. The response is to cite the policy language on direct physical loss, provide independent engineering or a certified storm report, and demand the specific policy endorsement that supposedly excludes cosmetic damage. Most policies do not contain a cosmetic exclusion.

Deep-dive: cosmetic-only hail damage denial.

Engineer Report Denial

The carrier hires an engineering firm (Haag, Rimkus, Donan, Nelson Forensic) that produces a report concluding the damage is mechanical, weathering, or manufacturer defect. The response is to produce a counter-engineer. Cite the report's methodology flaws. Pull the policy language on burden of proof. Escalate to appraisal if the carrier will not budge.

Playbook: engineer report denied roof claim.

Partial Roof / Matching Denial

The carrier approves the damaged slope only and refuses to pay for matching on undamaged slopes. In states with matching statutes you cite the statute. In states without statutes you cite the policy language on like kind and quality, the manufacturer discontinuation letter, and the visual mismatch photo evidence.

See matching denied partial roof replacement.

Decking Denial

A frequent sub-denial is the adjuster refusing to pay for decking replacement. Their argument is that the decking is reusable. Your counter is the local code requirement for nail-pullout tested sheathing, the manufacturer requirement for a clean deck, and photo evidence of the actual condition. See adjuster won't approve decking.

General Denial Strategy

Any denial can be escalated. Document the reason. Request the specific policy citation supporting the denial in writing. Respond with point-by-point evidence. Escalate to a supervisor. Invoke appraisal. See the full denial playbook at roofing claim denied.

Chapter 12: When to Use Appraisal vs. Litigation

Not every supplement dispute belongs in court. Most do not. The appraisal clause inside the policy is a faster, cheaper, binding path for valuation disputes and it should be your default lever before you ever call a lawyer.

What Appraisal Is

Appraisal is a contractual remedy built into every standard HO-3 policy. Each side picks an appraiser. The two appraisers pick an umpire. They evaluate the scope and cost and produce a binding valuation. It handles disagreements over the amount of loss, not coverage disputes.

Full walkthrough: insurance appraisal process roofing.

When Appraisal Is the Right Call

• The carrier agrees the loss is covered but disputes the scope or cost
• Negotiations have stalled for 30+ days
• The gap between the carrier's position and yours is at least 3,000 dollars
• You have documentation that will survive umpire review

When Litigation Is the Right Call

• The carrier is denying coverage entirely
• Bad-faith behavior (ignored correspondence, missed prompt-pay deadlines, fabricated engineer reports)
• The claim value crosses 25,000 dollars and the dispute is legal, not valuational
• State law provides fee-shifting that makes the attorney economics work

Appraisal takes 30 to 90 days. Litigation takes 9 to 24 months. Pick the tool that fits.

Chapter 13: Building a Supplement Workflow in Your Business

The difference between a contractor who does an occasional supplement and one who pulls 80,000 dollars of additional annual margin from supplements is not talent. It is workflow.

The Four-Role Operation

The Twelve-Touch Follow-Up Schedule

Every supplement submission should trigger a follow-up sequence. Day 1 submit. Day 3 confirm receipt. Day 7 check status. Day 10 nudge. Day 14 escalate. Day 21 supervisor. Day 28 appraisal demand letter on the desk. Without a tracking cadence, 30 percent of your supplements will sit untouched for months.

KPIs to Track

• Average supplement dollars per claim
• Supplement approval rate (approved lines / submitted lines)
• Average cycle time from submission to approval
• Percentage of claims with O&P approved
• Percentage of denials overturned
• Depreciation recovery rate

Tools That Compound Your Operation

Pair the right software stack. Aerial measurement (EagleView or Hover). Photo documentation (CompanyCam). Estimating (Xactimate or Roofr). Supplement automation (ClaimStack). CRM (JobNimbus, AccuLynx, Jobber). Each tool picks up one piece. The operator with integrated tools processes three times the volume per claims coordinator compared to a paper-and-email shop.

Chapter 14: Common Mistakes That Kill Supplements

Across the thousands of claim files ClaimStack has analyzed, the same handful of mistakes show up over and over. Avoid these and you move from average to elite.

Mistake 1: Submitting Without Photo Documentation

If the adjuster cannot see the condition, they cannot approve the line. Every supplement line needs a photo or a code citation. No exceptions.

Mistake 2: Re-Estimating Instead of Supplementing

Do not throw out the carrier's estimate. Build on top of it. Use the same claim number, the same property, the same date of loss. A complete re-write triggers a desk-review restart and delays payment by weeks.

Mistake 3: Missing O&P

If the job qualifies and the adjuster left it off, you just left 20 percent of the job on the table. Read it every time.

Mistake 4: Quoting Off the ACV Check

The ACV check is not your budget. It is the first of two payments. Quote off RCV, always.

Mistake 5: Skipping the Aerial Report

A hand-measured roof will lose any dispute against a certified EagleView report. Pay the 20 dollars. Put it in the packet.

Mistake 6: Accepting Verbal Denials

If the adjuster denies something on the phone, respond in writing and request the denial in writing with the specific policy citation. Verbal denials are not defensible in appraisal.

Mistake 7: Submitting the Supplement After Completion

Always supplement before the roof goes on, or at minimum before invoicing. A post-completion supplement drags depreciation recovery into a separate cycle and weakens your position.

Mistake 8: Ignoring State-Specific Rules

The Texas deductible law, the Colorado matching statute, the Florida AOB restrictions, the prompt-pay deadlines. These are not footnotes. They are leverage.

Mistake 9: Not Following Up

Supplements in limbo do not approve themselves. Build the follow-up cadence into your workflow.

Mistake 10: Giving Up on a Denial

Most denials are reversible. Document, respond, escalate, appraise. The carrier is counting on contractors to walk away.

Chapter 15: Putting It All Together (Summary Checklist)

Here is the operating checklist. Save it, print it, put it on the wall of your claims office.

On the First Inspection

• Capture the full photo set (wide, overhead, close-ups of every slope and penetration)
• Pull or order the aerial measurement report
• Get the signed authorization and a copy of the declarations page
• Note the date of loss and confirm the depreciation recovery deadline

When the Carrier's Estimate Arrives

• Run it line-by-line against the 25-item checklist in Chapter 4
• Verify O&P is applied where the job qualifies
• Confirm the price list is current (same month as the estimate date)
• Cross-reference quantities against the aerial report
• Identify code-required items missing from the scope
• Flag cosmetic-only or partial-roof language for immediate response

Before Submitting the Supplement

• Assemble the packet: cover letter, updated estimate, photos, aerial, code citations, manufacturer specs
• Number every supplement line with justification
• Confirm the carrier's submission channel (email, portal, fax)
• Reference the carrier's specific playbook (Chapter 7) for format preferences

After Submitting

• Confirm receipt in writing within 48 hours
• Start the prompt-pay clock and note the state deadline
• Run the twelve-touch follow-up schedule
• Respond to partial approvals and denials within five business days
• Escalate to supervisor at day 21 if unresolved
• Consider appraisal demand at day 30 if valuation-only dispute

Before Closing the File

• Complete the work to the full RCV scope
• Capture completion photos (full roof, all slopes, close-ups of supplemented items)
• Submit the depreciation release packet (completion certificate, final invoice, photos)
• Track the depreciation check and navigate any mortgage company escrow
• Collect final payment and close the ticket

The Deep-Dive Case Study

For a full worked example of this entire workflow applied to a real file, see Anatomy of a 14,200 dollar supplement on a Denver hail claim.

The Final Word

Supplements are not a trick. They are not an edge case. They are the built-in mechanism every property policy uses to reconcile first-draft estimates with actual reality. The contractors who treat supplements as a standard part of every claim, backed by disciplined documentation and a workflow that does not miss, build more durable businesses than the contractors who take the first check and move on.

Every chapter in this guide has a companion deep-dive. Every line item has a dedicated reference. Every carrier has a playbook. Every state has a statute sheet. The full network of resources exists so you can run this operation at the same level whether you close 40 claims a year or 400.

Bookmark this page. Share it with your team. Come back to it before every claim review. And if you want the software layer that reads every estimate against Xactimate pricing, flags the 25 missed items, pulls the right carrier playbook, and builds your supplement packet in minutes instead of hours, that is what ClaimStack was built to do.