Smokeproof Tower is a type of protected stairway enclosure designed to prevent smoke infiltration, serving as a required means of egress. Under the 1935-miami-dade-building-code, a smokeproof tower constructed in accordance with Section 3315 is considered a required stairway and may be substituted for standard stairways wherever they are mandated by the code (p. 243).
The code specifies that doors leading into smokeproof tower enclosures must be self-closing and kept normally closed, and such doors shall not be allowed in smokeproof towers as specified in Section 3315 (p. 238). This entity is integral to egress-and-exit-standards and fire-resistive-construction-requirements, ensuring safe evacuation routes in multi-story buildings. Detailed specifications for their construction and ventilation are found in 1935-Miami-Dade-Building-Code_p225_244.