UL Certification

Hi Willis, Yes, my experience is that UL 580 - Class 90 for loading, UL 2218 - Class 4 for impact resistance, UL 790 - Class A for external fire classification and UL 263 for internal fire hourly rating are common UL certifications for metal roofs. Many metal roofing manufacturers have them for their products. They are even recognized in the IBC building code as a means of meeting code requirements. UL 580 is probably the most common. Also, as a manufacturer of metal roofing, I have found membership in MCA/MRA is invaluable in staying current with and participating in the direction of metal roofing requirements. Best regards, David Stermer