Professional Siding Contractors in Rockwall, TX

A Class 4 roofing system refers to a type of roofing material that has passed the UL 2218 or FM 4473 impact resistance test, which is the highest rating available for impact resistance. This test is conducted by subjecting the roofing material to simulated hail impact conditions. Class 4 roofing systems are designed to withstand severe weather conditions, such as hailstorms and strong winds, offering better protection for the structure and its occupants. Common Class 4 roofing materials include impact-resistant asphalt shingles, metal roofing, and certain types of rubber or plastic-based materials.

Insurance companies give discounts for Class 4 roofing systems because these roofs are designed to be more durable and resistant to damage, particularly from hail and wind. This higher level of performance reduces the likelihood of roof-related insurance claims, thereby saving the insurance company money. Consequently, they incentivize homeowners to install Class 4 roofing systems by offering policy discounts.

Hail is caused by strong thunderstorms with powerful updrafts. Inside the storm, water droplets are carried upward by the updrafts, where they freeze into ice pellets. As these pellets are lifted higher, they can collect additional layers of ice by colliding with other supercooled water droplets. When the hailstones become too heavy for the updrafts to support, they fall to the ground as hail. The size of hailstones depends on the strength of the updrafts and the amount of time they spend accumulating ice in the storm.