By Camen James, Owner — 100+ Ohio Supplements Won
Short answer: Most Ohio storm-damage roof claims are shortpaid by $2,000 to $8,000+ on the first check. A supplement is the formal request that recovers it. The carrier won't volunteer the missing money — your contractor has to ask, in writing, with photos and code citations. Most contractors don't. The ones who do recover an average of $5,000+ per claim that the homeowner would have paid out of pocket or simply absorbed. If your scope is missing drip edge, ice and water shield, ridge ventilation, or full-slope matching, you are owed a supplement. This guide shows you exactly what one looks like and how to get it paid.
What Is a Supplement (and Why You Likely Need One)
A roof insurance supplement is a formal written request to your insurance carrier to pay for line items that should have been on the original scope but weren't. It's not a new claim. It's not an appeal. It's an addition to the existing claim, and Ohio carriers are legally obligated to consider it under your policy.
Insurance adjusters use a standardized estimating software called Xactimate. The software has the right line items, but the adjuster has to know to include them. On a roof replacement, that's 30 to 60 line items — every flashing, every accessory, every code upgrade, every detach-and-reset. Adjusters who handle hundreds of claims a season miss items. That's where supplements come in.
There are four reasons claims get shortpaid in Northeast Ohio:
- Code-required items were missed. Drip edge, ice and water shield, ridge ventilation — required by Ohio Residential Code when replacing a roof, but easy to overlook on a scope.
- Only the obviously damaged slope was scoped. Ohio's matching law says you don't have to live with mismatched shingles when one slope is hit and your shingles are discontinued. Adjusters routinely scope just the one slope.
- Carrier pricing is below market. Sometimes the carrier overrides Xactimate's ZIP-specific pricing with a flat rate that doesn't reflect actual Wayne County or Stark County labor costs.
- Damage discovered during tear-off wasn't anticipated. Rotted decking, damaged fascia, deteriorated underlayment — none of this is visible from the ground, but all of it gets added once exposed.
If any of those four things is true on your claim, you're owed a supplement. The question is whether your contractor will write one. Many won't — see our guide on what to do when your claim is denied or underpaid for context on the broader fight.
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The 7-Step Supplement Process
- 1
Get the Full Xactimate Report From Your Carrier
Don't accept just the summary check. You have the right under your policy to receive the full Xactimate (or carrier-equivalent) report — every line item, every unit price, every macro applied. This is the document your contractor needs to find what's missing.
Pro tip: Email the adjuster: 'Please send the complete scope of loss / Xactimate report for claim #XXXX.' They are required to provide it.
- 2
Have a Supplement-Writing Contractor Review the Scope
Most contractors review for total dollars. A supplement-writing contractor reviews for missing line items, code requirements, market-rate pricing, and matching law application. Ask the contractor: 'How many supplements have you written for [carrier name] in the last 60 days? What's your typical recovery rate?'
Pro tip: If a contractor can't answer that question, they don't write supplements. Find one who does.
- 3
Document Every Missing Item With Photos and Code Citations
A supplement isn't a phone call — it's a written submission with photo evidence, Ohio Residential Code citations for code-required items (drip edge, ice and water shield, ventilation), and Xactimate line-item codes (RFG DRIPE, RFG IWS, etc.) so the desk adjuster can drop them straight into the file.
Pro tip: Every missing item gets its own annotated photo. 'I think they missed the step flashing' doesn't move the needle. A labeled photo of three runs of step flashing with the Xactimate code does.
- 4
Submit the Supplement in Writing
The contractor sends the supplement package (cover letter, line-item table, annotated photos, code citations, matching law argument if applicable) to the assigned adjuster and the claims email on file. CC the homeowner so there's a paper trail.
Pro tip: Submit the supplement before tear-off when possible. Discovered damage during tear-off (rotted decking, damaged fascia) gets added as a second supplement.
- 5
Follow Up on Day 7, Day 14, and Day 21
Carriers have internal SLAs but they don't move without nudging. The contractor follows up at day 7 (confirmation of receipt), day 14 (status check), and day 21 (escalation if no response). Ohio insurers must acknowledge within 10 business days and decide within 21 business days.
Pro tip: If the desk adjuster goes silent, escalate to the managing adjuster or file a complaint with the Ohio Department of Insurance. The carrier has obligations under ORC 3901.
- 6
Push Back on Partial Approvals
Carriers often approve half the supplement and deny the rest. Don't accept partial approvals as final. The contractor responds with a second-round submission addressing each denied line — more photos, more code, more matching law. Most denials reverse on round two.
Pro tip: If round two fails on a matching law dispute, request a reinspection with a field adjuster, not the desk adjuster. Field adjusters can see the slope and almost always agree.
- 7
Invoke Appraisal If Negotiations Fail
Every Ohio homeowners policy includes an appraisal clause. If the supplement is denied and reinspection doesn't resolve it, either party can invoke appraisal — each side picks an appraiser, they jointly pick an umpire, and the panel issues a binding decision. This is the homeowner's leverage.
Pro tip: Mentioning appraisal in writing often resolves the dispute without invoking it. Carriers don't want appraisal — they almost always lose, and they pay the costs.
A Real Xactimate Shortpaid Example
Anonymized real Cornerstone Roofing and Siding supplement. 2,400 sq ft home in Wooster (44691). Hail claim, $1,000 deductible, 10-year-old roof. Initial check from the carrier left the homeowner $8,000+ short of the actual replacement cost.
Original adjuster's scope (Day 14)
| Xactimate Line | Qty | Unit | Total |
|---|---|---|---|
| RFG 240S — Tear off, haul | 24 SQ | $58.32 | $1,400 |
| RFG 240S — Laminated comp. shingles | 24 SQ | $264.78 | $6,355 |
| RFG STARTER | 200 LF | $1.78 | $356 |
| RFG RIDGE | 80 LF | $5.23 | $418 |
| RFG VENT-DRYER | 1 EA | $32.45 | $32 |
| Replacement Cost Value (RCV) | $10,654 | ||
| Depreciation (10-year roof, 30%) | −$3,196 | ||
| Deductible | −$1,000 | ||
| First check issued | $6,458 | ||
The homeowner saw $6,458 on a roof we estimated at $14,800. They called us. Here's what our supplement looked like.
Our supplement (Day 21)
| Missing Line | Why | Total |
|---|---|---|
| RFG DRIPE — Drip edge | Code-required when replacing | $682 |
| RFG IWS — Ice & water shield | Required on north slopes & valleys | $636 |
| RFG VENT-TRBO — Whirlybird vents | Missed (3 vents on rear slope) | $146 |
| RFG STEPF — Step flashing | Shortpaid below labor unit | $314 |
| Ohio matching law — full slope replacement | Shingles discontinued — must replace remaining 3 slopes for visual uniformity | $4,766 |
| Subtotal supplement | $7,372 | |
| Overhead, profit + tax | $1,802 | |
| Supplement RCV | $9,174 | |
Final RCV: $10,654 original + $9,174 supplement = $19,828. The homeowner recovered an additional $9,174 they otherwise would have paid out of pocket — or simply not done — without a contractor who writes supplements. For more on what a full replacement typically costs in Ohio, see our guide on how long an Ohio insurance claim takes from filing to final check.
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Commonly Shortpaid Line Items (Xactimate Codes)
These are the items we find missing or shortpaid on most Northeast Ohio scopes. If your Xactimate report doesn't include them — or includes them at half the right quantity — you're owed a supplement on each one.
- Drip edge$400 to $800
RFG DRIPE
Code-required, frequently missed entirely
- Ice and water shield$300 to $600
RFG IWS
Code-required on eaves and valleys in Ohio
- Ridge ventilation$400 to $900
RFG VENT-RID
Code minimum net free area, often scoped at existing turbines
- Synthetic underlayment$200 to $400
RFG UND-SYN
Scoped at felt rate, should be synthetic
- Step flashing$200 to $400
RFG STEPF
Counted below 1 labor unit on multi-run walls
- Gutter detach and reset$300 to $700
GUTTER 8 (DR&R)
Required to install drip edge properly
- Detach and reset accessories$100 to $400 each
DRR-SATD, DRR-SOLT, DRR-SKY
Satellite, solar, skylight — almost always missed
- Full slope replacement$3,000 to $8,000+
Matching law
Discontinued shingles — largest single supplement category
Red Flags Carriers Use to Deny Supplements
Carriers have a playbook for denying supplements. Knowing the moves lets your contractor counter them. Watch for any of these in writing from the adjuster:
"That item is already included in the per-square price."
How to counter: It's not. Xactimate's per-square shingle price covers shingles, nails, and basic labor. Drip edge, ice and water shield, ventilation, and flashings are separate line items. Push back with the Xactimate price-list breakdown.
"We only pay for the damaged slope, not the others."
How to counter: Cite Ohio's matching law and the manufacturer's documentation showing the shingle line is discontinued. Request a field reinspection with a manager-level adjuster. Most reverse on this once the matching law is properly invoked.
"Code upgrades aren't covered under your policy."
How to counter: Check your declarations page for an Ordinance or Law (Code Upgrade) endorsement. Most Ohio policies include this for free or for a small premium. Even without it, items required to legally complete the repair (drip edge, ice and water shield) are part of the loss, not an upgrade.
"Our pricing is final and reflects local market rates."
How to counter: Submit three independent contractor estimates from licensed Northeast Ohio roofers showing the actual market rate. Carriers backed by their own Xactimate pricing data routinely lose this argument in appraisal.
"Send your contractor an Assignment of Benefits to handle the supplement."
How to counter: Don't sign an AOB. It transfers control of your claim to the contractor and removes your protections. A reputable supplement writer doesn't need one — they handle supplements as part of the contracted job.
Frequently Asked Questions
What is a roof insurance supplement?
A supplement is a formal request to your insurance carrier to pay for line items missing from the original scope, shortpaid below market rate, required by code but not included, or discovered during tearoff. Most Ohio storm-damage roof claims are shortpaid on the first scope. Supplements average $2,000 to $8,000 per shortpaid Northeast Ohio claim.
What does Ohio's roof matching law cover?
Ohio's matching law generally requires insurance carriers to repair or replace damaged property so it matches the undamaged adjoining property. In practice: if hail damaged the south slope but your shingles are discontinued, the carrier should pay for the additional slopes needed for visual uniformity, even if only one slope was technically damaged.
Why don't most contractors write supplements?
Writing supplements requires fluency in Xactimate, current Ohio Residential Code and matching law, time to document each line item with photos and citations, and willingness to push back on the adjuster over multiple rounds. Most contractors take the original scope and complete the work at the discounted RCV, or call the adjuster once and give up when denied.
How long does the supplement process take?
Typical timeline: 5 days for the contractor to write and submit the supplement, 14 to 21 days for carrier review, then either full or partial approval or denial. Disputed supplements can extend to 60+ days via escalation to managing adjuster, reinspection requests, or formal appraisal under the policy.
What's the most commonly missed item on Ohio scopes?
Ohio matching law full-slope replacement when shingles are discontinued is the single largest supplement category, often $3,000 to $8,000+ in additional recovery. Drip edge, ice and water shield on north slopes, and ridge ventilation upgrades are also routinely missed.
Will filing a supplement raise my insurance premium?
No. A supplement is not a separate claim. It's an addition to the existing claim already on file. Your premium is influenced by the claim itself (which you've already filed), not by the supplement that gets you fully paid on it. There is no separate filing, no separate event, and nothing additional reported to your carrier.
Do I have to pay anything out of pocket for a supplement?
No. A reputable contractor who writes supplements absorbs that work as part of the job. You owe your deductible, period. The supplement money goes to fund the materials and labor that should have been in the original scope. If a contractor charges you a separate fee to write a supplement, walk away.
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