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803.1.1 Flame-Spread and Smoke-Development Tests

NYC Building Code 2014 > 8 Interior Finishes > 803 Wall and Ceiling Finishes > 803.1 General > 803.1.1 Flame-Spread and Smoke-Development Tests

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Interior wall and ceiling finish materials shall be tested and accorded indices for flame spread and smoke development in accordance with ASTM E 84 or UL 723.

803.1.1.1 Classification of Flame Spread Indices

Such interior finish materials shall be grouped in the following flame spread classes in accordance with their flame spread index.

Class A: Flame spread 0‒25.

Class B: Flame spread 26‒75.

Class C: Flame spread 76‒200.

803.1.1.2 Interior Flame Spread Index Requirements Based on Occupancy Group

Interior wall and ceiling finish shall have a flame spread index not greater than that for the classification rating specified in Table 803.1 for the group and location designated.

803.1.1.3 Interior Smoke Developed Index Requirements Based on Occupancy Group

Except where permitted for interior trim in Section 806.5, acceptable smoke-developed indices shall range from 0‒450 with the following restrictions:

Exits, corridors	25 or less
Occupancy Group I	50 or less
Rooms in which the net floor area per occupant is 10 square feet or less	100 or less

Related Code Sections

803.1.1 Interior Finishes, Flame-Spread and Smoke-Development Tests

Except where permitted for interior trim in Section 806.5, acceptable smoke-developed indices shall range from 0‒450 with the following restrictions: Exits, corridors 25 or less Occupancy Group I 50 or less Rooms in which the net floor area per occupant is 10 square feet or less 100 or less Interior wall and ceiling finish materials shall be tested and accorded indices for flame spread ...

NYC Building Code 2014 > 8 Interior Finishes > 803 Wall and Ceiling Finishes > 803.1 General > 803.1.1 Flame-Spread and Smoke-Development Tests

2604.2.4 Plastic, Flame Spread

The flame spread index shall not exceed 75 where tested in accordance with ASTM E 84. The smoke-developed index shall not be limited ...

NYC Building Code 2008 > 26 Plastic > 2604 Interior Finish and Trim > 2604.2 Foam Plastic Interior Trim > 2604.2.4 Flame Spread

2604.2.4 Plastic, Flame Spread

The flame spread index shall not exceed 75 where tested in accordance with ASTM E 84 or UL 723. The smoke-developed index shall not be limited ...

NYC Building Code 2014 > 26 Plastic > 2604 Interior Finish and Trim > 2604.2 Foam Plastic Interior Trim > 2604.2.4 Flame Spread

1405.18.3.5 Exterior Walls, Flame Spread

finish coat shall be tested in accordance with ASTM E 84, and shall have a flame spread rating of 25 or less and a smoke-developed rating of 50 or less. Materials shall be tested in the thickness intended to be used ...

NYC Building Code 2008 > 14 Exterior Walls > 1405 Installation of Wall Coverings > 1405.18 Exterior Insulation Finish System (EIFS) > 1405.18.3 Installation on Type I, II, III, or IV Construction > 1405.18.3.5 Flame Spread

2603.5.4 Plastic, Flame Spread and Smoke-Developed Indexes

mm), and shall each have a flame spread index of 25 or less and a smoke-developed index of 450 or less as determined in accordance with ASTM E 84. Exception: Prefabricated or factory-manufactured panels having minimum 0.020-inch (0.51 mm) aluminum facings and a total thickness of 0.25 inch (6.4 mm) or less are permitted to be tested as an assembly where the foam plastic core is not exposed in the course of construction ...

NYC Building Code 2008 > 26 Plastic > 2603 Foam Plastic Insulation > 2603.5 Exterior Walls of Buildings of Any Height > 2603.5.4 Flame Spread and Smoke-Developed Indexes

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