Science of Roofing: The Meaning Behind Ratings and Certifications

Question: What is “FM” and why does it matter? What about other codes?

Answer: FM stands for Factory Mutual, which is an insurance company that provides approval for certifications. It’s important to the customer because if we have that certification, it guarantees that our systems will behave like it should. Like FM, there’s UL, which is Underwriters Laboratory, and there’s Miami-Dade, which is just for the county of Miami. Having these will guarantee a system will do what it should do.

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