What is the fire rating for polycarbonate sheet?

Polycarbonate sheets generally have a fire rating of Class B, which indicates they are flame-retardant but can still burn under certain conditions. The exact fire rating can vary based on the specific type of polycarbonate and any additional treatments it may have undergone. In commercial applications, polycarbonate can often meet various fire safety standards, such as ASTM E84 or ISO 5660. Always check the manufacturer's specifications for precise fire rating information.