Guest User
This is a question about the industry = Do you know what % of the current manufacturers have tested their products to the Underwriting Laboratories 2218 hail resistant standard? Do you know what % of metal roofing is done by independant roll formers?
David Stermer
Hi wdp, Thanks for the question. I am confident that a high percentage of the larger metal panel manufacturers have products listed per UL 2218. For local/portable roll-formers, my belief is that the percentage is lower. I do not have datas on the percentage of roll-forming done by independent roll-formers. Regards, David Stermer

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