Mich. Admin. Code R. 400.10541 - Partition construction; large and secure facilities
Rule 541. In new, remodeled, or converted large and secure facilities, rooms shall be separated from corridors used as means of egress with partition construction which extends to the floor or deck above and which affords not less than a 3/4-hour-fire-resistance rating. Doors shall be at least 1 3/4-inch solid-core wood. Any glass in these partitions, including doors, shall be wire glass that is not more than 54 inches in any 1 lineal dimension and not more than a total of 1,296 square inches. If glass breakage is a potential hazard, clear acrylic may be placed directly in contact with and between 2 layers of wire glass to give added strength.
This rule does not apply where the type of construction requires more restrictive separation.
Notes
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