What does a higher FM class number indicate?

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Multiple Choice

What does a higher FM class number indicate?

Explanation:
Higher FM class numbers reflect stronger performance in protection against hazards. The FM Approvals rating tests a product’s ability to resist fire, impact, wind, and hail, and the class number is a scale of how demanding those tests are. A higher number means the product met more stringent criteria and demonstrated greater resistance in those hazard areas. This rating does not directly indicate installation costs, service life, or energy efficiency—those factors depend on other design choices and conditions.

Higher FM class numbers reflect stronger performance in protection against hazards. The FM Approvals rating tests a product’s ability to resist fire, impact, wind, and hail, and the class number is a scale of how demanding those tests are. A higher number means the product met more stringent criteria and demonstrated greater resistance in those hazard areas. This rating does not directly indicate installation costs, service life, or energy efficiency—those factors depend on other design choices and conditions.

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