The under-surface of the roof of any extension shall be fire-retarded or sprinklered unless such ceiling has already been plastered in a manner satisfactory to the department.
N.Y. Mult. Dwell. Law § 186
The under-surface of the roof of any extension shall be fire-retarded or sprinklered unless such ceiling has already been plastered in a manner satisfactory to the department.
N.Y. Mult. Dwell. Law § 186