Hail Cannon Video - 80-mil Sure-Weld TPO over EcoStorm VSH
FM Approvals recently updated its impact-resistance test method to include testing for the Very Severe Hail (VSH) classification. The new testing involves propelling 2-inch-diameter pre-formed ice balls at roof system test specimens using an ice ball launcher. The ice balls are propelled at 152 to 160 feet per second, resulting in an impact energy of 53 to 58 ft-lbs. on the surface of the roof system test specimen. This video demonstrations one of Carlisle’s 80-mil Sure-Weld TPO over EcoStorm VSH assemblies that pass FM’s VSH classification.