FM Approval Class numbers such as 4470 and 4476 refer to what?

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Prepare for the IIBEC GCK and Registered Roof Consultant exam. Study with flashcards, multiple-choice questions, and detailed explanations. Enhance your understanding of roofing standards, wind factors, and ASTM fundamentals to excel in your certification journey.

Multiple Choice

FM Approval Class numbers such as 4470 and 4476 refer to what?

Explanation:
FM Approval numbers are identifiers for a specific roof system listing by FM Global. Each number points to a tested roof assembly configuration—the exact mix of deck, insulation, membrane or covering, fasteners, adhesives, and accessories—that has met FM’s performance criteria, such as wind uplift resistance and fire performance. So numbers like 4470 or 4476 refer to particular, approved roof systems rather than broad product ratings, color codes, or installer licenses. If the components or configuration change, a different FM listing would apply.

FM Approval numbers are identifiers for a specific roof system listing by FM Global. Each number points to a tested roof assembly configuration—the exact mix of deck, insulation, membrane or covering, fasteners, adhesives, and accessories—that has met FM’s performance criteria, such as wind uplift resistance and fire performance. So numbers like 4470 or 4476 refer to particular, approved roof systems rather than broad product ratings, color codes, or installer licenses. If the components or configuration change, a different FM listing would apply.

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