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Title: Section 508  •  Size: 3947

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SECTION 508 - FIRE-RESISTIVE SUBSTITUTION

When an approved automatic sprinkler system is not required throughout a building by other sections of this code, it may be used in a building of Type II One-hour, Type III One-hour and Type V One-hour construction to substitute for the one-hour fire-resistive construction. Such substitution shall not waive or reduce the required fire-resistive construction for:

1. Occupancy separations (Section 302.3).

2. Exterior wall protection due to proximity of property lines (Section 503.2).

3. Area separations (Section 504.6).

4. Dwelling unit separations (Section 310.2.2)

5. Shaft enclosures (Section 711).

6. Corridors (Sections 1005.7 and 1005.8).

7. Stair enclosures (Section 1009).

8. Exit passageways (Section 1011.1).

9. Type of construction separation (Section 601.1).

10. Boiler, central heating plant or hot-water supply boiler room enclosures (Section 302.5).

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