9 Roofing Line Items Insurance Adjusters Almost Always Miss (And How to Get Paid for Them)
You've been in the storm-restoration roofing game long enough to know: the adjuster's initial estimate is rarely complete. They miss things. Regularly. Some are honest oversights. Others are systematic. The result? Thousands of dollars left on the table that should rightfully go to proper roof repairs. This is where supplements come in—and more importantly, where knowing which roofing line items adjusters almost always miss becomes your competitive advantage.
In this guide, I'm sharing the nine most consistent blind spots in adjuster estimates. For each one, you'll learn what it is, why it gets omitted, the Xactimate code, the typical dollar impact, and exactly how to present it so the adjuster approves it the first time.
Table of Contents
- 1. Ice and Water Shield Per Local Code
- 2. Synthetic Underlayment Upgrade
- 3. Starter Course Shingles Billed Separately
- 4. Step Flashing Remove/Replace
- 5. Drip Edge Per Current IRC Codes
- 6. Pipe Jack Boot Replacements
- 7. Ridge Vent LF Pricing vs. EA
- 8. Detach and Reset Satellite Dishes
- 9. Permit Fees
- How to Present Supplements That Get Approved
The Supplement Strategy That Works
Before we dive into the nine items, understand this: adjusters aren't deliberately trying to shortchange you. They're working with incomplete information, limited time, and standard estimating software that doesn't always account for local codes or modern best practices. Your job is to provide clarity—to show them what they missed and why it matters. When you do that professionally, supplements get approved.
Let's get into the specifics.
1. Ice and Water Shield Per Local Code
What It Is
Ice and water shield is a self-adhesive membrane applied under shingles in vulnerable areas—typically the first 6 feet of roof at eaves (the standard varies by code), valleys, and around dormers. In storm-damaged roofs, this protection is often missing entirely or should be upgraded during replacement.
Why Adjusters Miss It
Most initial estimates assume the original roof's protection remains adequate. Adjusters don't always factor in local code changes requiring expanded coverage, and many don't visually verify what's actually under the old shingles. If the adjuster photos don't show the roof being stripped, they assume nothing needs upgrading.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Underlayment > Ice Shield |
| Typical Cost | $1.50–$2.50 per linear foot (eaves) |
| Average Supplement | $400–$800 (100–300 LF coverage) |
How to Present It
"During removal, we discovered the original roof lacked ice and water shield in the eave areas. Current IRC codes in [state/county] now require 6-foot coverage minimum. We're upgrading to synthetic ice shield at all eaves and valleys. This protects against ice damming and water intrusion in freeze-thaw cycles."
Include a photo showing the deck before underlayment is applied. Reference the local code section. Adjusters respond well to code compliance language—it removes ambiguity about whether this is a necessary upgrade or contractor preference.
2. Synthetic Underlayment Upgrade
What It Is
Synthetic underlayment (like Titanium, Fortified, or similar products) is a non-bituminous, tear-resistant alternative to felt. It's more durable, handles heat better, and remains effective when wet—critical in areas with extended exposure during the repair phase.
Why Adjusters Miss It
The original roof likely used 15-pound felt or basic synthetic. Adjusters price to replace like-for-like. They don't automatically factor in upgrade recommendations or regional best practices. Many don't recognize that felt becomes slippery when wet, creating safety and durability issues on multi-day jobs.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Underlayment > Synthetic |
| Cost Difference | $0.10–$0.30/SF (vs. felt) |
| Average Supplement | $300–$600 (2,000–3,000 SF roof) |
How to Present It
"Original underlayment was 15-pound felt. For storm repairs extending over multiple days and to improve durability and safety during installation, we're upgrading to synthetic underlayment. This meets best practice standards for quality repairs and reduces risk of slippage during wet conditions."
Frame it as a safety and durability upgrade, not a luxury add-on. Adjusters understand risk mitigation.
3. Starter Course Shingles Billed Separately
What It Is
Starter shingles are inverted shingles nailed along the eave edge before the first course of regular shingles. They provide sealing, alignment, and water management. Most basic estimates include shingles as a single line item. Starter course should be separate—it's different material and installation.
Why Adjusters Miss It
It's not omitted; it's buried in the "shingles" line item without separate pricing. Estimators using pre-populated estimates see "30-year architectural shingles—roof area" and don't break out starter materials. The margin gets left behind.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Shingles > Starter Course |
| Typical Cost | $0.25–$0.40/LF (eaves) |
| Average Supplement | $150–$350 (400–1,400 LF) |
How to Present It
"Starter course shingles require different material (full-tab shingles inverted) and separate labor for alignment and sealing. This is a standard line item separate from field shingles and ensures proper water management at eave edges."
This is straightforward. Adjusters typically approve it immediately because it's code-compliant and specific to the installation method.
4. Step Flashing Remove/Replace
What It Is
Step flashing is the metal flashing installed where the roof meets a vertical surface—walls, dormers, chimneys. Proper installation requires removing old flashing, replacing it with new, and ensuring proper overlap and sealing. This is a labor and material item that gets overlooked constantly.
Why Adjusters Miss It
If the visible shingles and exterior don't show obvious flashing damage, adjusters assume original flashing is adequate. They don't account for the fact that old flashing often corrodes or was improperly sealed, and storm replacement is the perfect time to upgrade. Many don't itemize flashing removal as a separate labor line.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Flashing > Step Flashing (remove/replace) |
| Material Cost | $2.50–$5.00/LF |
| Labor (remove/replace) | $8.00–$15.00/LF |
| Average Supplement | $800–$2,000 (depending on flashing length) |
How to Present It
"Original step flashing at dormers/walls showed corrosion and improper sealing in roof valleys. Full removal and replacement with new lead-coated copper step flashing, properly sealed and overlapped per code. This is critical to prevent future water intrusion at penetration points."
Include before/after photos of corroded flashing. Adjusters understand that bad flashing causes interior damage. Code reference helps too.
5. Drip Edge Per Current IRC Codes
What It Is
Drip edge is the metal trim installed along roof edges to manage water runoff and protect fascia. Current IRC codes specify installation at eaves and rakes. Older roofs often have inadequate or missing drip edge. Modern codes also specify updated profiles and materials.
Why Adjusters Miss It
Similar to ice and water shield, adjusters assume original conditions are acceptable. If the initial scope photo doesn't show drip edge removal, they don't price new installation. They also don't stay current on code updates—IRC codes change, but many adjusters' knowledge doesn't.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Trim > Drip Edge |
| Typical Cost | $1.50–$2.50/LF |
| Average Supplement | $400–$800 (eaves + rakes) |
How to Present It
"Current IRC 905.2.8.1 requires drip edge at all eaves and rakes. We're installing aluminum drip edge per code specifications to ensure proper water diversion and fascia protection. This was not included in the original estimate."
Citation of the specific code section carries weight. Adjusters recognize "IRC" and "current code" as compliance language. It's hard to argue against.
6. Pipe Jack Boot Replacements
What It Is
Pipe jacks (or roof boots) seal plumbing vents, exhaust pipes, and other penetrations passing through the roof. Worn boots fail and cause leaks. Replacing them during roof replacement is standard practice and code-required.
Why Adjusters Miss It
Pipe jacks are often overlooked because they're small-ticket items ($50–$150 each). Adjusters on time pressure don't photograph every penetration. They might price one or two, but miss others. The total quantity gets underestimated significantly.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Penetrations > Pipe Boot (remove/replace) |
| Cost Per Boot | $75–$150 (material + labor) |
| Average Supplement | $300–$1,200 (4–8 boots typical) |
How to Present It
"Original scope included [X] pipe boots. Full roof inspection identified [Y] total plumbing and exhaust penetrations requiring boot replacement. These were missed in the initial estimate. Each boot is replaced to prevent future leaks per code."
Provide a count and photos of each location. Specificity prevents pushback. Adjusters will accept this if you can show they missed them.
7. Ridge Vent LF Pricing vs. EA
What It Is
Ridge vent provides attic ventilation along the roof peak. It's priced in linear feet (LF) in Xactimate, not per-unit. Some initial estimates incorrectly price ridge vent as "each" or lump it with shingles. The difference: you get underpaid or paid at the wrong rate entirely.
Why Adjusters Miss It
Estimating software inconsistency. Some pre-templates price ridge vent correctly (LF). Others default to "each" or include it as part of shingle pricing. The adjuster doesn't verify the unit of measure matches what's actually on the roof.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Ventilation > Ridge Vent (LF) |
| Correct Pricing | $3.00–$6.00/LF |
| Average Supplement | $300–$700 (60–150 LF correction) |
How to Present It
"Original estimate priced ridge vent incorrectly as per-unit rather than linear feet. Actual ridge vent required: [X] linear feet at correct Xactimate rate of $[Y]/LF. Attached is corrected line item with photo showing ridge vent extent."
This is a pricing correction, not new scope. Include the original estimate line and the corrected version side-by-side. Show the LF measurement. Very clean supplement.
8. Detach and Reset Satellite Dishes
What It Is
Satellite dishes, antennas, and other roof-mounted equipment need to be removed before roof work and re-mounted after. This involves disconnect, removal, protection during work, and reinstallation. It's labor-intensive and gets missed in initial estimates.
Why Adjusters Miss It
Not all homes have satellites visible from street-level photos. Adjusters don't walk every roof pre-storm or during initial inspection. The equipment only becomes apparent during your actual inspection or removal phase. By then, the estimate is already written.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | Roofing > Miscellaneous > Antenna/Satellite (detach/reset) |
| Cost Per Unit | $150–$300 (detach, disconnect, protect, reset) |
| Average Supplement | $150–$600 (1–2 units typical) |
How to Present It
"During site inspection, we identified [X] satellite dish(es) mounted on roof surface requiring removal, protection during installation, and reinstallation. These are not included in original estimate. Cost includes disconnection, temporary protection, and reset to original position with re-caulking."
Photo of the satellite before removal. Clear itemization. Adjusters understand this is necessary work and hard to price without seeing it first.
9. Permit Fees
What It Is
Most jurisdictions require roofing permits. Permit fees vary ($50–$400+ depending on roof area and location) and often include inspection fees. These are sometimes covered by insurance, sometimes by the homeowner. In supplements, they should be listed as a separate line item with invoice or receipt.
Why Adjusters Miss It
Initial estimates don't always include permitting. Some adjuster templates assume the homeowner handles permits. Others assume permits aren't insurable. The reality: most insurance companies approve permits as a reasonable cost of proper repairs, but only if itemized and requested in writing.
The Numbers
| Detail | Value |
|---|---|
| Xactimate Code | General Requirements > Permits & Inspections |
| Typical Cost | $50–$400 (varies by jurisdiction) |
| Average Supplement | $100–$300 |
How to Present It
"Roofing repair requires permit per local code. Attached is permit application and fee invoice from [municipality]. Permit and inspection are necessary to ensure work meets code and obtain certificate of occupancy clearance. Total cost: $[X]."
Attach the actual permit paperwork and fee invoice. This removes all ambiguity. Adjusters approve permits when documentation is clear.
How to Present Supplements That Get Approved
Structure Matters
A supplement isn't just a list of missed items. It's a document that educates the adjuster about what they missed and why it matters. Here's the framework:
- Introduction: "During detailed inspection and material removal, the following items were identified as necessary for proper, code-compliant roof repair. These items were not included in the initial estimate."
- Each Item: What it is, why it's necessary, Xactimate code, cost, and code reference (if applicable).
- Supporting Documentation: Photos, measurement documentation, code citations, and invoices.
- Closing: "We respectfully request approval of this supplement to ensure the roof repair meets current code and industry standards. Please contact us with any questions."
The Golden Rule: Code, Cost, Photo
For every line item in your supplement:
- Code: Why is this necessary? Reference IRC section, local ordinance, or industry standard.
- Cost: What does it cost? Include Xactimate code and rate, or itemized invoice if you've already purchased it.
- Photo: Can you show it? A photo of the damaged/missing condition before repair is worth more than a paragraph of explanation.
When an adjuster sees a photo of corroded step flashing, a code citation about water intrusion requirements, and a clear cost breakdown, the supplement approval rate jumps dramatically. They understand. They approve.
Timing Is Critical
Submit supplements quickly—ideally within 2–3 days of your site inspection. The longer you wait, the more likely the adjuster has moved on mentally. Fast supplements show professionalism and reduce the chance of duplicate inspections or delays.
Use the Right Format
PDF with clear formatting. Use headings, bullet points, and white space. Adjusters review dozens of documents daily. Make yours easy to scan and approve. Include page numbers and an index if you're submitting multiple pages.
The Real Opportunity
These nine items represent real money—often $3,000–$8,000 per roof in supplemental recovery. But more importantly, they represent professionalism. When you understand the gaps in initial estimates and present solutions clearly, you're not chasing money—you're educating your customer and the insurance process.
Contractors who master supplements aren't just recovering lost margin. They're building reputation. Adjusters start to expect quality from your submissions. Homeowners see you fighting for their roof quality. Insurance companies see organized, documented requests instead of random change orders.
These nine items are your starting checklist. Every roof is different—look for additional missed items specific to the property (attic vents, roof-to-wall transitions, soffit modifications, etc.). But if you're hitting these nine consistently, you're in the top tier of supplement documentation.
Stop Leaving Money on the Table
Managing supplements manually is slow and error-prone. What if you could organize every missed line item, generate professional supplement PDFs, and track approval rates—all from your phone?
Try ClaimStack FreeNext Steps: Learning More
Want a deeper dive into how to structure supplements? Check out our guide on what makes a roofing supplement effective, or download our complete Xactimate supplement checklist.
And if you're tired of managing estimates in spreadsheets and email threads, ClaimStack makes supplement organization automatic—helping you capture every missed line item, track changes, and get faster approvals.