Two estimates on the same roof can differ by thousands, and the difference is rarely the shingles — it is the dozen smaller line items that make a roof a roof. Here are the ones that go missing from a first estimate most often, and why they matter.
Drip edge. The metal flashing along the eaves and rakes that directs water into the gutter instead of behind it. Code requires it on new roofs in most jurisdictions, but it is one of the first things left off a quick estimate. It is not optional, and the carrier should pay for it.
Ice-and-water shield. The self-sealing membrane along the eaves and in the valleys that protects against ice dams and wind-driven rain. Many older roofs never had it; current code often requires it. That code upgrade is a covered cost on most policies — but only if it is documented and cited.
Starter strip and ridge cap. The specialized shingles at the eaves and along the ridges and hips. They are not the same as cutting up field shingles, and they carry their own cost. First estimates routinely count the field and forget the edges.
Flashing, pipe boots, and valley metal. The pieces that seal every penetration and transition. They wear out and should be replaced with the roof, not reused — and each is a line item.
O&P — Overhead and Profit. When a job is complex enough to require a general contractor to coordinate multiple trades, an additional amount for overhead and profit (commonly cited around 20 percent) is a legitimate part of the estimate. Carriers do not always include it automatically, and on a qualifying job it is worth contesting.
Matching. If a repair cannot match the existing material — discontinued shingle, faded color — many states require the carrier to address the mismatch rather than leave the home two-tone. Whether matching applies is a documented argument, not a given.
None of these are tricks; they are the real, code-required, manufacturer-specified components of a correctly built roof. The reason they go missing is that catching them takes someone who knows the scope cold. Don spent five years inside the adjuster's world — the scope we write includes the line items that make the roof right and the claim whole. We never advertise covering your deductible, but we do make sure the estimate reflects the entire roof.
