1 Del. Admin. Code § 702-2-4.0

Current through Register Vol. 28, No. 7, January 1, 2025

Section 702-2-4.0 - Two-Hour Rated Fire Barrier Wall (Class "C" Fire Barrier)

4.1 A Two-hour rated fire barrier wall (for use in providing "approved" fire barriers in order to segment buildings into individual fire divisions) shall be a two-hour fire rated assembly, and shall meet the following criteria:

4.1.1 The fire barrier wall is to be constructed in accordance with the provisions of the Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls, NFPA 221;

4.1.2 The fire barrier wall is to have a two-hour fire resistance rating;

4.1.3 The fire barrier wall shall extend from the foundation or floor below to the underside of the roof or floor deck above;

4.1.4 Openings, if any shall be protected with a 1 1/2 hour fire rated protective assembly on one side of the opening.

Note: Two-hour rated fire barriers (Class "C" Fire Barriers) are utilized to meet the criteria set forth in Regulation 701, Chapter 2, Definitions, One- and Two-Family Dwellings, Townhouse/Rowhouse, or the occupancy is classified as a multi-family residential or apartment and is required to meet the specifications for that occupancy.

4.2 The two-hour rated fire barrier wall for use in duplex, townhouse, rowhouse, etc. shall consist of a listed assembly extending from the foundation tight to the underside of the smooth surface of the roof deck. The roof decking, extending four (4) feet to each side of the Two-hour wall assembly, shall be fire retardant or fire treated lumber or a non-combustible material.

1 Del. Admin. Code § 702-2-4.0

25 DE Reg. 74 (7/1/2021) (final)