What is a roofing supplement?
An additional request to the insurance carrier for money the original scope left off — extra line items, missed materials, or code-required work.
A roofing supplement is what you file when the carrier’s first estimate doesn’t cover everything the job actually needs. Adjusters write fast, miss items, and price things low, so the original scope rarely reflects the true cost of the roof.
Common supplement items include ridge cap, drip edge, starter strip, steep and high charges, ice-and-water shield, and code-upgrade work. Each one is legitimate money the policy already owes — it just wasn’t written into the first estimate.
Done right, supplements aren’t about padding a claim. They’re about getting the scope to match the real job so you’re paid for the work you’re actually doing. Roofers who supplement well add thousands to the average job.