Architectural Shingles Spec Sheet

Atlas Pinnacle Impact Shingles: Class 4 Hail Rating & Insurance Discounts

Published: 2026-05-25

Atlas Pinnacle Impact is engineered specifically for hail-prone regions, with a UL 2218 Class 4 impact rating — the highest standard for hail resistance in residential roofing. The patented Core4 polymer-modified asphalt provides enhanced flexibility and impact absorption compared to conventional oxidized asphalt.

Insurance Premium Reduction

The Class 4 rating translates directly to homeowner savings: insurance carriers in TX, CO, OK, KS, and NE offer premium discounts of 5-25% for Class 4 roofs. For a home with a $2,000 annual premium, a 20% discount saves $400/year — paying back the premium shingle cost difference within 3-5 years.

🛡️ Insurance & Compliance Advisory

Atlas Pinnacle Impact is one of the few architectural shingles with a UL 2218 Class 4 impact rating — the highest level of hail resistance. This rating qualifies homeowners for significant insurance premium discounts (typically 5-25%) in hail-prone states. For insurance adjusters, the Class 4 rating is a critical differentiator — a Class 4 roof may survive a hail event that totals a Class 1-3 roof, reducing claim frequency and severity.

Equivalent Products & Cross-References

Equivalent / Alternate ProductAction
GAF Timberline HDZ
Owens Corning Duration Storm
CertainTeed Landmark PRO
Equivalent products listed for cross-reference purposes. Always verify specs with manufacturer datasheets.

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References & Industry Standards

  • ASTM International. Standard Specifications for Single-Ply Roofing Membranes. astm.org
  • FM Approvals. Factory Mutual Roofing Assembly Standards. fmapprovals.com
  • UL LLC. Fire Classification of Roofing Materials. ul.com
  • NRCA. The NRCA Roofing Manual. nrca.net