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assemblies required to have a minimum fire protection rating
of 20 minutes where located in corridor
walls or smoke barrier
walls having a fire-resistance rating
in accordance with Table 716.5
shall be tested in accordance with NFPA 252 or UL 10C without the hose stream test. Exceptions:
1. Viewports that require a hole not larger than 1 inch (25 mm) in diameter through the door, have not less than a 0.25-inch-thick (6.4 mm) glass disc and the holder is of metal that will not melt out where subject to temperatures of 1,700°F (927°C).
door assemblies in occupancies of Group I-2
shall be in accordance with Section 407.3.1
3. Unprotected openings shall be permitted for corridors
in multitheater complexes where each motion picture auditorium has not fewer than one-half of its required exit
or exit access doorways
opening directly to the exterior or into an exit
4. Horizontal sliding doors in smoke barriers
that comply with Sections 408.6
in occupancies in Group I-3
assemblies shall meet the requirements for a smoke and draft control door assembly tested in accordance with UL 1784. The air leakage rate of the door assembly shall not exceed 3.0 cubic feet per minute per square foot (0.01524 m3
/s • m2
) of door opening at 0.10 inch (24.9 Pa) of water for both the ambient temperature and elevated temperature tests. Louvers shall be prohibited. Installation of smoke doors shall be in accordance with NFPA 105.
In a 20-minute fire door assembly
, the glazing material in the door itself shall have a minimum fire-protection-rated glazing of 20 minutes and shall be exempt from the hose stream test. Glazing material in any other part of the door assembly, including transom lights and sidelights, shall be tested in accordance with NFPA 257 or UL 9, including the hose stream test, in accordance with Section 716.6
Related Code Sections
Fire door assemblies shall meet the requirements for a smoke and draft control door assembly tested in accordance with UL 1784. The air leakage rate of the door assembly shall not exceed 3.0 cubic feet per minute per square foot (0.01524 m 3 /s • m 2 ) of door opening at 0.10 inch (24.9 Pa) of water for both the ambient temperature and elevated temperature tests. Louvers shall be prohibited. Installation of smoke doors shall be in accordance with NFPA 105. Fire door assemblies required to have a minimum fire protection rating of 20 minutes where located in corridor walls or smoke barrier walls ...
a smoke barrier wall or a corridor enclosure required to have smoke and draft control doors in accordance with the International Building Code . A corridor damper shall be provided where corridor ceilings, constructed as required for the corridor walls as permitted in Section 708.4, Exception 3, of the International Building Code , are penetrated. A ceiling radiation damper shall be provided where the ceiling membrane of a fire-resistance-rated floor/ceiling or roof/ceiling assembly, constructed ...
Vertical and horizontal smoke barriers shall comply with this section. Smoke barriers shall be of materials permitted by the building type of construction. Penetrations of smoke barriers shall comply with Section 714. Joints made in or between smoke barriers shall comply with Section 715. Penetrations in a smoke barrier by ducts and air transfer openings shall comply with Section 717. A 1-hour fire-resistance rating is required for smoke barriers . Exception: Smoke barriers constructed of minimum 0.10-inch-thick (2.5 mm) steel in Group I-3 buildings. Smoke barriers shall form an effective membrane continuous from the top of the foundation or floor/ ceiling assembly below to the underside of the floor or roof sheathing, deck or slab above, including continuity through concealed spaces, such as those found above suspended ceilings, and interstitial structural and mechanical spaces. The supporting construction shall be protected to afford the required fire-resistance rating of the wall or floor supported in buildings of other than Type IIB, IIIB or VB construction. Smoke barrier walls used to separate smoke compartments shall comply with Section 709.4.1. Smoke-barrier walls used to enclose areas of refuge in accordance with Section 1009.6.4 or to enclose elevator lobbies in accordance with Section 405.4.3, 3007.6.2, or 3008.6.2 shall comply with Section 709.4.2. Exception: Smoke-barrier walls are not required in interstitial spaces where such spaces are designed and constructed with ceilings or exterior walls that provide resistance to the passage of fire and smoke equivalent to that provided by the smoke-barrier walls. Smoke-barrier walls used to separate smoke compartments shall form an effective membrane continuous from outside wall to outside wall. Smoke-barrier walls used to enclose areas of refuge in accordance with Section 1009.6.4, or to enclose elevator lobbies in accordance with Section 405.4.3, 3007.6.2, or 3008.6.2, shall form an effective membrane enclosure that terminates at a fire barrier wall having a level of fire protection rating not less than 1 hour, another smoke barrier wall or an outside wall. A smoke and draft control door assembly as specified in Section 7184.108.40.206 shall not be required at each elevator hoistway door opening or at each exit doorway between an area of refuge and the exit enclosure. Openings in a smoke barrier shall be protected in accordance with Section 716. Exceptions: 1. In Group I-1 Condition 2, Group I-2 and ambulatory care facilities , where a pair of opposite-swinging doors are installed across a corridor ...
Smoke barriers shall be provided to subdivide every story used by persons receiving care, treatment or sleeping and to divide other stories with an occupant load of 50 or more persons, into no fewer than two smoke compartments . Such stories shall be divided into smoke compartments with an area of not more than 22,500 square feet (2092 m 2 ) in Group I-2, Condition 1, and not more than 40,000 square feet (3716 m 2 ) in Group I-2, Condition 2, and the distance of travel from any point in a smoke compartment to a smoke barrier door shall be not greater than 200 feet (60 960 mm). The smoke barrier shall be in accordance with Section 709. Refuge areas shall be provided within each smoke compartment . The size of the refuge area shall accommodate the occupants and care recipients from the adjoining smoke compartment . Where a smoke compartment is adjoined by two or more smoke compartments , the minimum area of the refuge area shall accommodate the largest occupant load of the adjoining compartments. The size of the refuge area shall provide the following: 1. Not less than 30 net square feet (2.8 m 2 ) for each care recipient confined to bed or stretcher. 2. Not less than 6 square feet (0.56 m 2 ) for each ambulatory care recipient not confined to bed or stretcher and for other occupants. Areas or spaces permitted to be included in the calculation of refuge area are corridors , sleeping areas, treatment rooms, lounge or dining areas and other low-hazard areas. A means of egress shall be provided from each smoke compartment created by smoke barriers without having to return through the smoke compartment from which means of egress originated. Horizontal assemblies supporting ...
Smoke barriers required for passive smoke control and a smoke control system using the pressurization method shall comply with Section 709. The maximum allowable leakage area shall be the aggregate area calculated using the following leakage area ratios: 1. Walls A/A w = 0.00100 2. Interior exit stairways and ramps and exit passageways: A/A w = 0.00035 3. Enclosed exit access stairways and ramps and all other shafts: A/A w = 0.00150 4. Floors and roofs: A/A F = 0.00050 where: A = Total leakage area, square feet (m 2 ). A F = Unit floor or roof area of barrier, square feet (m 2 ). A w = Unit wall area of barrier, square feet (m 2 ). The leakage area ratios shown do not include openings due to gaps around doors and operable windows. The total leakage area of the smoke barrier shall be determined in accordance with Section 909.5.1 and tested in accordance with Section 909.5.2. Total leakage area of the barrier is the product of the smoke barrier gross area multiplied by the allowable leakage area ratio, plus the area of other openings such as gaps around doors and operable windows. Compliance with the maximum total leakage area shall be determined by achieving the minimum air pressure difference across the barrier with the system in the smoke control mode for mechanical smoke control systems utilizing the pressurization method. Compliance with the maximum total leakage area of passive smoke control systems shall be verified through methods such as door fan testing or other methods, as approved by the fire code official. Openings in smoke barriers shall be protected by automatic-closing devices actuated by the required controls for the mechanical smoke control system. Door openings shall be protected by fire door assemblies complying with Section 716.5.3. Exceptions: 1. Passive smoke control systems with automatic-closing devices actuated by spot-type smoke detectors listed for releasing service installed in accordance with Section 907.3. 2. Fixed openings between smoke zones that are protected utilizing the airflow method. 3. In Group I-1 Condition 2, Group I-2 and ambulatory care facilities, where a pair of oppositeswinging doors are installed across a corridor ...