Statutes, codes, and regulations
Wisconsin Administrative Code
Agency - Department of Safety and Professional ServicesSafety, Buildings, and EnvironmentBuildings Constructed Prior to 1914
Chapter SPS 375 - Definitions and general requirements
Section SPS 375.11 - One-hour fire-resistive ceiling

Wis. Admin. Code Department of Safety and Professional Services SPS 375.11

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Current through August 26, 2024
Section SPS 375.11 - One-hour fire-resistive ceiling

A one-hour fire-resistive ceiling shall be constructed of not less than 15/8 inch joists, spaced not more than 16 inches center to center, protected on the under side by metal or wire lath and 3/ 4 inch of gypsum or Portland cement plaster or by 3/8 inch perforated gypsum lath and 1/2 inch of gypsum plaster, the joints of the lath to be reinforced with 3 inch wide strips of metal lath. Other materials and methods of construction having an equivalent fire-resistive rating may be used if approved by the department, as specified under s. Ind 50.12, 1956.

Wis. Admin. Code Department of Safety and Professional Services SPS 375.11

1-2-56; renum. and am., Register, September, 1974, No. 225, eff. 10-1-74; corrections made under s. 13.93(2m) (b) 4 and 7., Stats., Register, June, 1995, No. 474.