Statewide Roofing installs and recommends Class 4 Impact Resistant Shingles for our residential customers in Oklahoma City. Most of our suppliers offer the relatively new class 4  impact resistant shingles. A Class 4 Impact Resistant Shingles can withstand impacts from flying objects to a much greater extent than a common asphalt shingle.

Statewide Roofing offers a free upgrade to Class 4 IR Shingles with all their shingle roofing jobs.


The impact resistant rating system ranks shingles’ resistance to impact into 4  levels – 1 through 4, with Class 4 as the highest rating level to impact resistance. If you install products that are UL 2218 Class 4 impact tested and may qualify for insurance discounts. These can be up to 30% on your premium.  Please check with our insurance company for details.

Class 4 Impact Resistant Shingles

Wind and hail damage is very costly. In fact, between 1991 and 1995, this kind of damage resulted in about $8 billion of insurance payouts each year. Roof damage caused by wind and hail made up a significant portion of these payouts.  When asphalt shingles are damaged by hail, they can lose large amounts of granules, lose material at the edges, and suffer penetration by the hailstones.

By Owens Corning

Unlike standard shingles,TruDefinition® Duration STORM® impact-resistant shingles feature patented WeatherGuard®Technology. The integrated polymeric backing material of the WeatherGuard® Technology allows Duration STORM® shingles to meet one of the industry’s highest ratings for impact resistance, UL 2218, Class 4. In some areas, homeowners may qualify for insurance premium discounts – check with your insurance company. These shingles also feature SureNail® Technology for high-performance durability and outstanding gripping power.

WeatherGuard® Technology

Stands up to an angry mother nature. Stand out in your neighborhood.
Patented WeatherGuard® Technology has at its core an integrated polymeric backing material on the back of the shingles that allows the shingles to meet one of the industry’s highest classification for impact resistance—UL 2218-Class 4 Impact Resistance. Corresponding ProEdge STORM® or WeatherGuard® Hip & Ridge Shingles are required to complete UL 2218 Class 4 Impact Resistant Roof System for warranty coverage*