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// CODE SNIPPET

Section R315 Flame Spread and Smoke Density

2010 Residential Code of NY > 3 Building Planning > R315 Flame Spread and Smoke Density
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R315.1 Wall and Ceiling

Wall and ceiling finishes shall have a flame-spread classification of not greater than 200.
Exception: Flame-spread requirements for finishes shall not apply to trim defined as picture molds, chair rails, baseboards and handrails; to doors and windows or their frames; or to materials that are less than 1/28 inch (0.91 mm) in thickness cemented to the surface of walls or ceilings if these materials have a flame-spread characteristic no greater than paper of this thickness cemented to a noncombustible backing.

R315.2 Smoke-Developed Index

Wall and ceiling finishes shall have a smoke-developed index of not greater than 450.

R315.3 Testing

Tests shall be made in accordance with ASTM E 84.

R315.4 Alternate Test Method

As an alternate to having a flame-spread classification of not greater than 200 and a smoke developed index of not greater than 450 when tested in accordance with ASTM E 84, wall and ceiling finishes, other than textiles, shall be permitted to be tested in accordance with NFPA 286. Materials tested in accordance with NFPA 286 shall meet the following criteria:

During the 40 kW exposure, the interior finish shall comply with Item 1. During the 160 kW exposure, the interior finish shall comply with Item 2. During the entire test, the interior finish shall comply with Item 3.
  1. During the 40 kW exposure, flames shall not spread to the ceiling.
  2. During the 160 kW exposure, the interior finish shall comply with the following:
    1. Flame shall not spread to the outer extremity of the sample on any wall or ceiling.
    2. Flashover, as defined in NFPA 286, shall not occur.
  3. The total smoke released throughout the NFPA 286 test shall not exceed 1,000 m2.

Related Code Sections


Section R315 Building Planning, Flame Spread and Smoke Density
As an alternate to having a flame-spread classification of not greater than 200 and a smoke ...
2010 Residential Code of NY > 3 Building Planning > R315 Flame Spread and Smoke Density
J502.1 Existing Buildings and Structures, Interior Finishes
All newly installed interior finishes shall comply with the flame spread and smoke density requirements of Section R319 of this code ...
2010 Residential Code of NY > J Existing Buildings and Structures > J502 Building Elements and Materials > J502.1 Interior Finishes
602.2.1.6 Duct Systems, Foam Plastic Insulation
a flame spread index of 75 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E 84 or UL 723 at the thickness ...
Mechanical Code 2015 of New York State > 6 Duct Systems > 602 Plenums > 602.2 Construction > 602.2.1 Materials Within Plenums > 602.2.1.6 Foam Plastic Insulation
R316.3 Building Planning, Surface Burning Characteristics
construction shall have a flame spread index of not more than 75 and shall have a smoke-developed index of not more than 450 when tested in the maximum ...
2020 Residential Code of New York State > 3 Building Planning > R316 Foam Plastic > R316.3 Surface Burning Characteristics
R316.3 Building Planning, Surface Burning Characteristics
construction shall have a flame spread index of not more than 75 and shall have a smoke-developed index of not more than 450 when tested in the maximum ...
Residential Code 2015 of New York State > 3 Building Planning > R316 Foam Plastic > R316.3 Surface Burning Characteristics
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