N.Y.C. Admin. Code § EBC 1104: Section EBC 1104: Fire Protection

1104.1 Requirements.

Fire protection systems shall be provided in additions to existing buildings in accordance with Chapter 9 of the New York City Building Code where such systems would be required in new construction for a space or building or where required by the New York City Fire Code.

1104.2 Sprinkler system.

Sprinkler systems shall be provided in additions to a building as required by Section 1104.1.

Exception: Sprinklers shall not be required to be installed in additions to unsprinklered buildings to be occupied exclusively as one- or two-family dwellings. This exception shall not apply where sprinkler protection is otherwise required due to a change of occupancy or alterations made to the existing building pursuant to Chapters 9 or 10, or where sprinkler protection is required by the New York City Fire Code.

1104.3 Standpipe systems.

Standpipe systems shall be provided in additions to existing buildings as required by Section 1104.1, and Sections 1104.3.1 and 1104.3.2 for prior code buildings.

1104.3.1 Additions made to prior code buildings with existing standpipe systems.

Where the alteration involves the addition of stories to a building with an existing standpipe system, and 1 or more stair shafts are not currently equipped with standpipes, standpipes shall be provided in all required stairways in accordance with Chapter 9 of the New York City Building Code.

Exception: Additional standpipes are not required where all of the following conditions are met:

1. The alteration involves the addition of only 1 story;

2. Existing standpipes in existing stair shafts are extended in accordance with Chapter 9 of the New York City Building Code;

3. Standpipe hose connections are provided in compliance with Item 6 of Section 905.4 of the New York City Building Code; and

4. The demand on the standpipe system, including any additional demand, with respect to flow and pressure does not exceed the capacity of the existing approved system.

1104.3.2 Additions made to prior code buildings with no existing standpipe systems.

Where the alteration involves the addition of stories to a building with no existing standpipe system, standpipes shall be provided in all required stairways in accordance with Chapter 9 of the New York City Building Code.

Exception: Standpipes are not required where all of the following conditions are met:

1. The alteration involves the addition of only 1 story;

2. The completed building does not exceed 6 stories; and

3. The completed building does not exceed 85 feet (22.86 m) in height.

1104.4 Fire alarm requirements for additions made to buildings.

Fire alarm systems shall be provided in additions as required by Section 1104.1, and the existing building shall comply with Sections 1104.4.1 through 1104.4.3 as applicable. The fire alarm components for additions shall be connected to the fire alarm system serving the main use or dominant occupancy of the existing building.

1104.4.1 Large-area buildings.

Additions resulting in a large-area building shall comply with Sections 1104.4.1.1 and 1104.4.1.2.

1104.4.1.1 Fire alarm in large-area building.

Where the addition results in the building being classified as a large-area building pursuant to Section 907.2.2.2, 907.2.7.1, 907.2.10.1, or 907.2.8.5 of the

New York City Building Code

, the fire alarm requirements of those sections shall apply to the entire building.

1104.4.1.2 Auxiliary radio communications systems in large-area buildings.

Where the addition results in the total building area exceeding 250,000 square feet (23 226 m

2

), an auxiliary radio communication system in accordance with Section 916 of the New York City Building Code shall be provided.

Exception: Auxiliary radio communications systems shall not be required in buildings constructed pursuant to building codes in effect prior to November 7, 2022, where the addition does not exceed 10 percent of the building area in existence or indicated on filed plans on or before such date.

1104.4.2 High-rise buildings.

Where the vertical addition to the existing building results in the building being classified as a high-rise building subject to Section 403 of the New York City Building Code, the fire alarm requirements of Section 907.2.13 of the New York City Building Code shall apply to the entire building.

Exception: In prior code buildings, compliance with Section 907.2.13 of the New York City Building Code shall not be required where the vertical addition is limited to a penthouse level that does not exceed 33 and one-third percent of the roof area including other rooftop structures in accordance with Section 504.3 of the New York City Building Code.

1104.4.3 Smoke and carbon monoxide alarm detection in existing portions of a building.

Where an addition is made to a building or structure of a Group R-2 occupancy that constitutes a portion of a dwelling unit, the entire remaining portion of the dwelling unit shall be provided with smoke and carbon monoxide alarms as required by Chapter 9 of the New York City Building Code.

1104.5 Other alteration work.

Any alteration work within an existing building to which an addition is being made shall comply with the fire protection requirements of Chapters 8 or 9 of this code, as applicable.