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Title: Section 424  •  Size: 2716

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SECTION 424 - EXIT FACILITIES

A single stairway may be used for exiting in towers of any height, provided the occupant load per floor does not exceed 15. Access to the stairway and the elevator shall be separated from each other a distance apart equal to no less than one half of the length of the maximum overall diagonal dimension of the area served measured in a straight line. The exit stairway and elevator hoistway may be located in a common shaft enclosure, provided they are separated from each other by a four-hour separation having no openings. Such stairway shall be constructed to comply with the requirements for pressurized enclosures as specified in Section 1009. Stairways, however, need not extend to the roof as specified in Section 1006.14. The provisions of Section 403 do not apply.

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