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Title: Section 506  •  Size: 4595

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SECTION 506 - MAXIMUM HEIGHT OF BUILDINGS AND INCREASES

The maximum height and number of stories of buildings shall be dependent on the character of the occupancy and the type of construction and shall not exceed the limits set forth in Table 5-B, except as provided in this section and as specified in Section 302.1 for mixed occupancy buildings.

EXCEPTIONS: 1. Towers, spires and steeples erected as a part of a building and not used for habitation or storage are limited as to height only by structural design if completely of noncombustible materials, or may extend not to exceed 20 feet (6096 mm) above the height limit in Table 5-B if of combustible materials.

2. The height of one-story aircraft hangars shall not be limited if the building is provided with automatic sprinkler systems throughout as specified in Chapter 9 and is entirely surrounded by public ways or yards not less in width than one and one-half times the height of the building.

The story limits set forth in Table 5-B may be increased by one story if the building is provided with an approved automatic sprinkler system throughout. The increase in the number of stories for automatic sprinkler systems shall not apply when the automatic sprinkler systems throughout are installed under the following provisions:

1. Section 904.2.5 for Group H, Divisions 1, 2, 3, 6 and 7 Occupancies.

2. Section 505 for an increase in allowable area.

3. Substitution for one-hour fire-resistive construction pursuant to Section 508.

4. Section 402, Atria.

5. Section 904.2.6 for Group I, Divisions 1.1 and 1.2 Occupancies used as hospitals, nursing homes or health-care centers in Type II One-hour, Type III One-hour, Type IV or Type V One-hour construction.

See Chapters 3 and 4 for special occupancy provisions.

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