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Claims Guide

What Is a Roofing Supplement? And Why Scopes Differ After a Storm

A supplement is a documented, line-item request to your carrier when the insurance estimate misses verified scope. It is a normal part of many storm claims, not a dispute tactic.

Two documents, two purposes

The contractor's scope is the contractor's itemized list of the work your property actually needs: materials, labor, components, quantities, and the condition evidence behind each line. It's built from measuring and inspecting your roof and exterior.

The insurance estimate is your carrier's version, written by the adjuster using the carrier's guidelines and pricing references. It covers what the carrier's assessment supports, under the terms of your policy.

Both documents describe the same roof. They are produced by different people, sometimes on different days, with different methods, so they don't always match.

Why scopes differ

Common, legitimate scope differences

What a supplement actually is

A supplement is a documented, line-item request: for each gap, the contractor provides photos, measurements, and product or code references showing why the item belongs in the scope. The carrier reviews it and decides. It's a normal, routine part of many storm claims, not a dispute or a tactic, and it's how verified scope differences get corrected.

What HammerTime does when we find differences

Our customers describe this part of the process in their own words:

★★★★★
I’m so glad I chose HammerTime for my roof replacement. They were reliable, professional, and handled the entire process from start to finish. What really impressed me was their knowledge of the insurance process. They were able to identify and supplement items that another roofing company completely missed, which helped maximize my insurance claim and ensured everything was covered properly.

The other bid I received looked cheaper at first, but HammerTime knew exactly what to look for and fought to get the full scope of work approved. In the end, I received more from my insurance company and got a better-quality roof. Highly recommend HammerTime to anyone looking for an honest and experienced roofing company!
Eric Nguyen — Google Review

Who makes coverage decisions

Your insurance company, applying your policy. Always. HammerTime is a contractor, not a public adjuster: we don't negotiate coverage, we don't promise approvals or additional payments, and we don't file or manage your claim. What we do is make sure the full, verified scope of the damage is documented, so your carrier has what it needs to decide, and so you know what the work actually takes.

Want your damage documented right the first time?

A free storm inspection with photo documentation is the first step in getting an accurate scope, whatever your carrier decides.

Related Questions

Why do roofing bids differ so much after a hail storm?
Because the scopes usually differ, not just the prices. One bid may include flashing, decking allowance, ventilation, and clean-up; another may cover shingles and little else. Compare line items against each other on the same roof. The cheapest bid is often the narrowest scope, and after a storm that gap can cost you parts of the job.
How do I choose a roofing company that understands insurance claims?
Look for a documentation-first process: an on-roof inspection with photos, a written line-item scope, a willingness to meet your adjuster when you authorize it, and clear explanations of supplements and scope differences. Then verify the basics: BBB accreditation, manufacturer certifications like Owens Corning Preferred, and proof of general liability insurance. HammerTime is BBB A+ accredited (since April 17, 2023), an Owens Corning Preferred Contractor (dealer 239598), and carries full general liability insurance.
Does a supplement mean my claim was handled wrong?
No. Adjusters work from a single visit and standardized pricing, and honest scope gaps happen on well-run claims. A supplement is simply the correction process: documented evidence supporting the missing items. What matters is that the documentation is real, itemized, and yours to review.
Will a supplement get me more money from my insurance company?
We can't promise that, and no honest contractor can. Your carrier reviews the documentation and decides. What a supplement does is make sure verified, photographable scope items aren't left out of the claim file. The decision and the amounts always rest with your insurance company.
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