Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 5 - General Building Heights and Areas
Section 509 - SPECIAL PROVISIONS
Subsection 509.5 - Group R-1 and R-2 buildings of Type IIIA construction
Universal Citation: 780 CMR MA Code of Regs 509.5
Current through Register 1531, September 27, 2024
The height limitation for buildings of Type IIIA construction in Groups R-1 and R-2 shall be increased to six stories and 75 feet (22 860 mm) where the first floor assembly above the basement has a fire-resistance rating of not less than 3 hours and the floor area is subdivided by 2-hour fire-resistance-rated fire walls into areas of not more than 3,000 square feet (279 m2).
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