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// CODE SNIPPET

1406.2.1 Ignition Resistance

NYC Building Code 2014 > 14 Exterior Walls > 1406 Combustible Materials on the Exterior Side of Exterior Walls > 1406.2 Combustible Exterior Wall Coverings > 1406.2.1 Ignition Resistance
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Combustible exterior wall coverings shall be tested in accordance with NFPA 268.

Exceptions: The following materials are not required to be tested in accordance with NFPA 268. However, such materials shall comply with all other provisions of Section 1406.
  1. Wood or wood-based products.
  2. Other combustible materials covered with an exterior covering other than vinyl sidings listed in Table 1405.2.
  3. Aluminum having a minimum thickness of 0.019 inch (0.48 mm).
  4. Exterior wall coverings on exterior walls of Type V construction.

1406.2.1.1 Fire Separation 5 Feet or Less

Where installed on exterior walls having a fire separation distance of 5 feet (1524 mm) or less, combustible exterior wall coverings shall not exhibit sustained flaming as defined in NFPA 268.

1406.2.1.2 Fire Separation Greater Than 5 Feet

buildings bulletin
Linked Resources Available

This section has been clarified by a buildings bulletin issued by the Department of Buildings.

Learn more in the Linked Resources panel on the right.
For fire separation distances greater than 5 feet (1524 mm), an assembly shall be permitted that has been exposed to a reduced level of incident radiant heat flux in accordance with the NFPA 268 test method without exhibiting sustained flaming. The minimum fire separation distance required for the assembly shall be determined from Table 1406.2.1.2 based on the maximum tolerable level of incident radiant heat flux that does not cause sustained flaming of the assembly.

TABLE 1406.2.1.2 MINIMUM FIRE SEPARATION FOR COMBUSTIBLE VENEERS

FIRE
SEPARATION
DISTANCE
(feet)
TOLERABLE
LEVEL INCIDENT
RADIANT HEAT
ENERGY (kW/m2)
FIRE
SEPARATION
DISTANCE
(feet)
TOLERABLE
LEVEL INCIDENT
RADIANT HEAT
ENERGY (kW/m2)
5 12.5 16 5.9
6 11.8 17 5.5
7 11.0 18 5.2
8 10.3 19 4.9
9 9.6 20 4.6
10 8.9 21 4.4
11 8.3 22 4.1
12 7.7 23 3.9
13 7.2 24 3.7
14 6.7 25 3.5
15 6.3

For SI: 1 foot = 304.8 mm, 1 Btu/H2 ×°F = .0057 kW/m2 × K.

Related Code Sections


1406.2.1 Exterior Walls, Ignition Resistance
Combustible exterior wall coverings shall be tested in accordance with NFPA 268. Exceptions: The following materials are not required ...
NYC Building Code 2014 > 14 Exterior Walls > 1406 Combustible Materials on the Exterior Side of Exterior Walls > 1406.2 Combustible Exterior Wall Coverings > 1406.2.1 Ignition Resistance
1406.2.1 Exterior Walls, Ignition Resistance
Combustible exterior wall coverings shall be tested in accordance with NFPA 268. Exceptions: The following materials are not required to be tested ...
NYC Building Code 2008 > 14 Exterior Walls > 1406 Combustible Materials on the Exterior Side of Exterior Walls > 1406.2 Combustible Exterior Wall Coverings > 1406.2.1 Ignition Resistance
305.3 General Regulations, Elevation of Ignition Source
that are listed as flammable vapor ignition resistant ...
NYC Fuel Gas Code 2014 > 3 General Regulations > 305 Installation > 305.3 Elevation of Ignition Source
2610.2 Plastic, Mounting
to resist ignition where exposed at the edge to a flame from a Class B brand as described in ASTM E108 or UL 790. Exceptions: Curbs shall ...
NYC Building Code 2008 > 26 Plastic > 2610 Light-Transmitting Plastic Skylight Glazing > 2610.2 Mounting
2610.2 Plastic, Mounting
to resist ignition where exposed at the edge to a flame from a Class B brand as described in ASTM E 108 or UL 790. Exceptions: Curbs shall ...
NYC Building Code 2014 > 26 Plastic > 2610 Light-Transmitting Plastic Skylight Glazing > 2610.2 Mounting
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