Key numbers
11 verified hail storms with stones of 1.75 inches or larger reached Broomfield County from 2002 to 2025 in the storm records we keep; the largest measured 3 inches (teacup size) on June 18, 2018 (NOAA NCEI).
| Hail storms by decade, 2002 to 2025 | 2000s: 4, 2010s: 4, 2020s: 3 Source: Storm library: Denver metro hail history |
|---|---|
| Largest hail | 3 in. (teacup), June 18, 2018 Source: NOAA NCEI |
| Costliest hail storm | $767.6 million insured losses (2009 dollars), July 20, 2009 Source: RMIIA |
| About 28.4% | About 28.4% of Broomfield's housing units (9,423 of 33,202) were built in 1989 or earlier. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 |
A storm counts when the library lists Broomfield County among the areas it hit. Each hail size is the storm's largest report, which may have fallen in a neighboring county, and insured losses cover every area the storm hit.
Hail history by ZIP (NOAA reports since 1996; linked ZIPs have a full page, method)
| ZIP | Area | 1 in.+ reports | Largest |
|---|---|---|---|
| 80020 | Broomfield | 20 | 2 in. |
| 80023 | Broomfield | 3 | 1.25 in. |
Roofers in Broomfield are bound by the City and County of Broomfield’s re-roofing permit, which asks for the contractor’s license number, the number of squares, every roof slope (with a roof slope report for pitched roofs), tear-off or overlay, and the shingle brand and style. Shingles must be wind-rated (ASTM D3161 Class F or D7158 Class G or H), drip edge is required on eaves and gables, a mid-roof inspection is called at 25% to 50% complete, and a final inspection closes the permit. The homeowner is responsible for any HOA approval.
What goes on a Broomfield re-roofing permit
| Item | Why it matters |
|---|---|
| Contractor and license number | The contractor is named on the permit |
| Project valuation | Includes all materials and labor; it also sets Broomfield’s building use tax |
| Roof slope report | Required for all pitched roof systems |
| Squares, stories, tear-off or overlay | Defines the scope the inspector checks against |
| Shingle brand and style | Must show the wind classification |
| Flat roofs | Deck type, fire rating, membrane, insulation and a minimum 1/4 inch per foot slope |
| Skylights and solar | Skylights removed, added or replaced, and whether solar is on the roof |
The details Broomfield inspectors look for
Broomfield follows the manufacturer’s installation instructions and publishes a roof inspection checklist. The items it calls out are worth asking any roofer about:
- Flashing at every change in roof slope, with no exceptions.
- Laminated shingle offsets of at least 4 inches, a Broomfield policy as well as a manufacturer guideline.
- Step flashing in the right place, with no nail below the upper 2 inches of the flashing.
- Shingle exposure that matches what the manufacturer tested for its wind rating. Owens Corning’s tolerance is plus or minus 1/8 inch.
- Headwall flashing that covers at least two shingle courses.
As an Owens Corning Platinum Preferred contractor, we install to Owens Corning’s instructions, which is what Broomfield inspects to. Our asphalt shingle page explains wind ratings, and 3-tab vs architectural shingles explains the offset and exposure differences.
Broomfield roofing services
Shingle, metal and tile roofs, repairs, storm damage and commercial roofing for flat and low-slope buildings. If hail hit your roof, the claim stays yours; our photos make sure nothing gets missed in the scope. Neighbors: Louisville, Henderson, and Arvada, where every new roof must be Class 4 impact-resistant. See all Denver-area towns we serve.
We are veteran-owned, family-run since 1990, with 650+ Google reviews, and we reply the same business day. Call our Centennial office at (303) 209-0152 or book a free roof inspection.
