This regulation specifies interior wall and ceiling finish requirements for psychiatric facilities, mandating flame spread ratings of Class A or Class B for existing buildings and Class A for new construction, with limited exceptions for small rooms and lower corridor walls. Reductions in finish class are permitted where sprinkler systems are installed per NFPA 101 provisions. Facility operators must document and indicate the flame spread ratings in use throughout the building.
View official sourceK331 Interior Wall and Ceiling Finish 2012 EXISTING Interior wall and ceiling finishes, including exposed interior surfaces of buildings such as fixed or movable walls, partitions, columns, and have a flame spread rating of Class A or Class B. The reduction in class of interior finish for a sprinkler system as prescribed in 10.2.8.1 is permitted. 10.2, 19.3.3.1, 19.3.3.2 Indicate flame spread rating(s). _____________________ 2012 NEW Interior wall and ceiling finishes, including exposed interior surfaces of buildings such as fixed or movable walls, partitions and columns have a flame spread rating of Class A. The reduction in class of interior finish for a sprinkler system as prescribed in 10.2.8.1 is permitted. Individual rooms not exceeding four persons may have a Class A or B finish. Lower half of corridor walls, not exceeding 4 feet in height, may have a Class A or B flame spread rating. 10.2, 18.3.3.1, 18.3.3.2 Indicate flame spread rating(s). _____________________