Choosing a roof to withstand hailstorms

By Jenny Yu.  

Class 4 roofs offer superior protection against large hail and other severe weather threats. 

Choosing a roof that can withstand hailstorms is a growing priority for homeowners in many parts of the United States, and DECRA Metal Roofing’s article “What’s the Best Type of Roof for Hail? Guide to Class 4 Hail Resistance” breaks down the key considerations for impact-resistant roofing. Hail can cause cracking, chipping and warping of roof materials, and repeated damage can lead to costly repairs and leaks. Understanding how hail ratings work and how they affect long-term performance can help property owners make better choices when it’s time for a roof replacement. 

The article explains that hail resistance is measured by Underwriters Laboratories’ UL 2218 Impact Rating test, which simulates the force of large hail by dropping steel balls on roofing materials. Roofs are assigned ratings from Class 1 (lowest) to Class 4 (highest), with Class 4 roofs showing no penetration or fracture even when struck by a two-inch steel ball dropped from 20 feet. A Class 4 rating is widely seen as the gold standard for impact resistance and can significantly reduce the risk of damage in hail-prone areas. 

While the hail rating is a major factor, the article emphasizes that homeowners should also look at a roof’s overall performance profile. Impact resistance often goes hand in hand with strong wind resistance, high fire ratings and the ability to withstand extreme temperature swings. Choosing a system that performs well across these metrics improves durability and can enhance a home’s energy efficiency and resale value. 

Metal roofing is frequently highlighted as a top choice because of its ability to reflect heat, resist impact and provide a long service life. Metal roofs can last two to three times longer than traditional asphalt shingles as well, offering protection for decades and often qualifying for lower insurance premiums due to their resilience.  

Read the full article to learn more about choosing the best roof for hail-prone regions.