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Xactimate Roofing Supplement List: The Line Items to Check on Every Claim

A working checklist of Xactimate roofing line items commonly missing from first-pass estimates — with the code citations and photo documentation each one needs.

The RoofGenius Team Updated September 1, 2026 9 min read
Quick answer

The Xactimate line items most worth checking against on a roofing claim are starter strip, drip edge, ice-and-water shield at valleys and eaves, ridge cap, step and counter flashing, pipe-jack boots, kick-out flashing, roof-to-wall flashing, detach-and-reset of satellite dishes and gutters, steep- and high-roof charges, and code-required upgrades like drip edge and underlayment per IRC R905. Each item needs a photo, a quantity tied to the measurement report, and a code or manufacturer citation to survive desk review.

TL;DR
  • First-pass estimates often price shingles and little else — the money is in the accessories
  • Every supplement line needs three things: photo, measured quantity, citation
  • IRC R905 and manufacturer install instructions are your citation backbone
  • Steep/high charges and detach-and-resets are legitimate scope, not padding
  • RoofGenius flags candidate missing items from the estimate PDF automatically

How to use this checklist

This is a check-against list, not a bill-everything list. Pull the carrier's estimate, walk each category below, and ask one question per item: is it in scope, and if it's needed, is it priced? Only supplement what's real — items you can photograph, measure, and cite. Estimates that overreach get clawed back and cost you credibility with the desk.

The supplement checklist by category

Starter, edge, and underlayment

  • Starter strip at eaves and rakes — manufacturer instructions require it; check linear feet against the eave+rake totals
  • Drip edge at eaves and rakes — required by IRC R905.2.8.5 in adopted editions; check LF against the measurement report
  • Ice-and-water shield at valleys, eaves (where code requires), and penetrations — check valley LF and climate-zone eave requirements
  • Underlayment — felt or synthetic; verify squares match the measured roof area, not just the shingle squares
  • Valley metal or woven valley material where applicable

Flashing and penetrations

  • Step flashing at every sidewall — count the courses from photos
  • Counter flashing and chimney cricket where required by dimension
  • Kick-out flashing at roof-to-wall terminations — commonly omitted, commonly the leak source
  • Pipe-jack boots — one per penetration; check the count against roof photos
  • Roof-to-wall flashing on split-level transitions
  • Skylight reflashing or replacement when the unit is disturbed

Ridge, vents, and finishing

  • Ridge cap shingles — check LF against measured ridge and hip totals
  • Ridge vent — LF, plus end caps and connectors
  • Box vents, turbines, or power vents — count and type
  • Paint/stain of flashings and stacks where matching is required

Labor conditions and detach-and-reset

  • Steep-roof charge for pitches at or above the threshold in the estimate's own pricing logic
  • High-roof charge for two-story-plus access
  • Detach and reset satellite dishes, gutters, and downspouts where removal is necessary to roof correctly
  • Tear-off of additional layers discovered at removal — document layer count with photos at the edge
  • Debris haul and dump fees where local disposal costs apply
  • Permit fees where the jurisdiction requires them

The citation backbone

A supplement line without a citation is a negotiation; with one, it's documentation. Anchor each category to (1) the adopted IRC section — R905.2.8.5 for drip edge is the classic example, (2) the shingle manufacturer's published installation instructions, which most warranties require to be followed, and (3) the measurement report quantities so the desk can verify LF and squares against an independent source. RoofGenius supplement letters assemble these citations per line item automatically.

Documentation rules that survive desk review

  1. Photograph every item before tear-off and again during — condition and cause
  2. Tie every quantity to the measurement report, never a rounded guess
  3. One line item, one photo, one citation — bundle nothing
  4. Write in estimate language: match the carrier's own category and unit conventions
  5. Keep the letter short: item, quantity, citation, photo reference. Argument goes in a follow-up call, not the PDF

Run the checklist automatically

Upload the carrier's estimate PDF and RoofGenius flags candidate missing items against your measurement report, drafts the supplement letter with citations, and keeps every claim in one workspace. See how AI supplements work or pick a plan.

Q&A

Frequently asked questions

What is a Xactimate roofing supplement?+

A supplement is a documented request to add legitimate, missing scope to a carrier's first estimate — items like drip edge, starter, flashing, and code-required upgrades — each supported by photos, measured quantities, and code or manufacturer citations.

Which Xactimate line items are most worth checking?+

Start with starter strip, drip edge, ice-and-water shield, ridge cap, step and kick-out flashing, pipe boots, detach-and-reset items, and steep/high labor charges. Verify each against photos and the measurement report before including it.

Do I need code citations for every supplement item?+

For code-driven items like drip edge and underlayment, yes — cite the adopted IRC section. For damage-driven items, the photo and measured quantity carry the line. Manufacturer installation instructions are the strongest general-purpose citation.

Is it okay to supplement steep-roof and high-roof charges?+

Yes, when the roof genuinely meets the pitch and story thresholds — these are standard labor-condition pricing, not padding. Document pitch with the measurement report and photos.

How long should a supplement letter be?+

Short. Each line item gets a quantity, a citation, and a photo reference. Long argumentative letters slow desk review; the documentation should make the case on its own.

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