Impact-resistant roof discounts: nobody sends them — you claim them

Last reviewed: July 10, 2026

Here’s the part of the impact-resistant roof pitch that’s true: many insurers writing Colorado homeowners policies offer premium credits for UL 2218 Class 4 roofing. And here’s the part nobody says plainly: carriers don’t monitor permits or drive by checking your shingles. If you don’t claim the credit, you simply don’t get it.

First, a correction you’ll only read here

Roofing websites quoting “15–30% discounts” usually cite Colorado statute C.R.S. 10-4-110.8 as the law behind them. We read that statute. It covers homeowners-policy practices — cancellations, replacement-cost estimates, wildfire total losses — and contains no impact-resistant roofing discount language at all. The percentages you see are marketing summaries of individual carriers’ filings, not a legal entitlement.

What is in law, as of May 2026: SB26-155 requires reporting of “the discount applied to homes due to the presence of a resilient roof system” — meaning insurers’ credit practices for stronger roofs are becoming visible and comparable. The number that matters is the one your carrier has on file — and it’s yours to ask for in writing.

How to claim the credit, step by step

1. Before the contract: confirm the exact product and its UL 2218 Class 4 certification in the written scope — manufacturer and product line, not “impact resistant shingles.”
2. Permit and inspection: pull the permit your county requires (see your county’s page — Denver, Arapahoe, El Paso) and keep the passed-inspection record. This is your proof the roof exists as specified.
3. Get the certificate: ask the roofer for the manufacturer’s Class 4 certification for your installed product — most carriers want the completed impact-resistant roof form or product documentation.
4. Ask your carrier in writing: request the impact-resistant roofing credit, attach the product certification and permit/inspection record, and ask what the filed credit is and when it applies.
5. Check the renewal: credits have a way of not surviving policy changes. Verify it’s still there at every renewal.

Worth knowing before you spend

A discount changes the payback math on a roof you’re already replacing; it rarely justifies tearing off a healthy roof. If a grant is what would make the project possible, read what the new state program actually says before committing — and whatever you do, keep every document. In this game, paper is money.