Section 400.4546. Partition construction.

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 at least a ¾-hour fire resistance rating. Doors shall be at least 1¾-inch solid wood core. Any glass in these partitions, including doors, shall be wired glass which is not more than 54 inches in any 1 lineal dimension and not more than a total of 1,296 square inches. Where glass breakage is a potential hazard, clear acrylic may be placed directly in contact with and between 2 layers of wired glass to give added strength. Glazing in compliance with national fire protection association pamphlet 257, 2007, and having the required fire resistant rating, may also be used in walls and in doors when tested in accordance with national fire protection association standard 252, 2012. This rule does not apply where the type of construction requires more restrictive separation.

History: 1983 AACS; 2015 AACS.