More than two decades ago, abuse-resistant gypsum panels and impact-resistant gypsum panels were developed for application in high-traffic and heavy-wear areas. Often referred to as “AR” panels and “IR” panels, these products have denser cores and tougher, more resilient facers. AR/IR panels are heavier than traditional 5/8-inch type X gypsum wallboard by an average of at least 25 percent. The ratings or performance of the AR/IR panels—Levels 1 to 3—are defined by ASTM C1629 Standard Classification for Abuse-Resistant Non-Decorated Interior Gypsum Panel Products and Fiber-Reinforced Cement Panels. Hospitals, schools, college dormitories, gymnasiums, and minimum-security prisons are a few examples of places where these panels provide a high-performance alternative to other technologies.
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