Exception: Garage doors using foam plastic insulation complying with Section 2603.3 in detached and attached garages associated with one- and two-family dwellings need not be provided with a thermal barrier.
Exception: Foam plastic used as part of an interior floor finish.
Exception: Prefabricated or factory-manufactured panels having minimum 0.020-inch (0.51 mm) aluminum facings and a total thickness of 1/4 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.
Exception: One-story buildings complying with Section 2603.4.1.4.Exterior wall assemblies containing foam plastic insulation shall provide protection against vertical and lateral flame propagation in accordance with Section 2603.5.5.1, 2603.5.5.2, or 2603.5.5.3.
- One-story buildings.
- Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.
- There is no air space between the insulation and the concrete or masonry.
- The insulation has a flame spread index of not more than 25 as determined in accordance with ASTM E 84 or UL 723, and the maximum air space between the insulation and the concrete or masonry is not more than 1 inch (25 mm).
- Materials demonstrated to remain in place and that prevent the passage of flame and hot gases sufficient to ignite cotton waste where subjected to ASTM E 119 or UL 263 timetemperature conditions under a minimum positive pressure differential of 0.01 inch (2.49 Pa) of water at the location of the penetration for a time period of 15 minutes.
- Gypsum board having a minimum thickness of ½ inch (12.7 mm) provided all joints have continuous support.
- Sheet steel not less than 26 ga (0.38 mm) thickness provided all joints have continuous support.
- Cement-based millboard having a minimum thickness of ¼ inch (6.4 mm).
- Batts or blankets of mineral wool, mineral fiber or other approved materials installed in such a manner to securely remain in place.
- Cellulose insulation installed as tested for the specific application.
- In buildings of noncombustible construction, fire-retardant wood in accordance with Section 603.1.
- In buildings of combustible construction, materials listed in Section 718.2.1.
Exception: Assemblies protected on the outside with one of the following:
TERMITE INFESTATION PROBABILITY MAP
Exception: When the interior trim material has been tested as an interior finish in accordance with NFPA 286 and complies with the acceptance criteria in Section 803.1.2.1, it shall not be required to be tested for flame spread index in accordance with ASTM E 84 or UL 723.
Plastic materials that have a burning extent of 1 inch (25 mm) or less where tested at a nominal thickness of 0.060 inch (1.5 mm), or in the thickness intended for use, in accordance with ASTM D 635.
Plastic materials that have a burning rate of 21/2 inches per minute (1.06 mm/s) or less where tested at a nominal thickness of 0.060 inch (1.5 mm), or in the thickness intended for use, in accordance with ASTM D 635.
|FIRE SEPARATION DISTANCE |
|CLASS OF |
|MAXIMUM PERCENTAGE |
AREA OF EXTERIOR
WALL IN PLASTIC WALL
|MAXIMUM SINGLE AREA |
OF PLASTIC WALL PANELS
|MINIMUM SEPARATION OF PLASTIC WALL |
|Less than 6||—||Not Permitted||Not Permitted||—||—|
|6 or more but less than 11||CC1||10||50||8||4|
|CC2||Not Permitted||Not Permitted||—||—|
|11 or more but less than or equal to 30||CC1||25||90||6||4|
|Over 30||CC1||50||Not Limited||3b||0|
Exception: Where an automatic sprinkler system is provided throughout in accordance with Section 903.3.1.1, the area of allowable glazing shall be increased to a maximum of 50 percent of the wall face of the story in which it is installed with no limit on the maximum dimension or area of a single pane of glazing.
AREA LIMITATIONS FOR LIGHT-TRANSMITTING
PLASTIC ROOF PANELS
|MAXIMUM AREA OF |
INDIVIDUAL ROOF PANELS
|MAXIMUM AGGREGATE |
AREA OF ROOF PANELS
(percent of floor area)