3.6 Smoke control doorsets Approved document B requires that certain door assemblies meet smoke control requirements and in order to do this the doorset will require seals to be provided at the jambs, head, and in the case of pairs, the meeting stiles.
Smoke Barriers (§710.5). Exception 1 modified to allow ¾ inch undercuts in smoke barrier doors in Group I-2. Smoke Partitions (§711.5.2). Removes language requiring artificial bottom seal across full width of bottom of door when testing smoke and draft control doors in smoke partitions. (§711.5) Horizontal Assemblies. Eliminates fire resistance
These door and frame assemblies divide occupancies in a building. 1 Hour 3/4 Hour (45 minute) For use where there are openings in corridors or room partitions. 2 Hour ... smoke and draft control is a primary concern. 2.7 Doors tested without hose stream Doors may be rated as 20 minutes without a hose stream. These doors have successfully
• It is strongly recommended, and it is required on fire door assemblies, that doors having a door closer be hung on ball-bearing or anti-friction hinges or pivots • Failure to use the correct type and size fasteners may void factory warranty • Fasteners for fire/smoke door assemblies must conform to NFPA 80.
In the past, a solid core door with minimal clear-ances required for proper operation was thought to provide this effective barrier. However, the IBC 2009 Commentary states in Section 711.5.2, describing the air infiltration requirements for smoke and draft control doors, that “section 407.3.1 requires corridor doors in
1. Smoke- and Draft-Control Assemblies: Provide an assembly with gaskets listed and labeled for smoke and draft control by a qualified testing agency acceptable to authorities having jurisdiction, based on testing according to UL 1784 and installed in compliance with NFPA 105.
These openings are in corridors where smoke and draft control is required. The minimum wall rating is 1 hour. Table 1 – Fire door openings 1 Introduction Fire testing of doors and hardware and the resulting labeling authorities granted, is a com-plex subject that is better understood when basic rules and guidelines are applied. 2 Doors
Smoke and draft control doors complying with UL 1784 shall be labeled as such. Labels shall be approved and permanently affixed. The label shall be applied at the factory or location where fabrication and assembly are performed. 715.3.5.3 Smoke and draft control door labeling requirements. Smoke and draft control doors complying with UL 1784 ...
edge guards. The door manufacturer is often a valuable assistant in these matters. Contract documents shall: • Specify neutral pressure or positive pressure compliance. • If positive pressure, specify the category of door: A or B assembly. • Specify whether the smoke and draft label (S label) is validated or not. FAce MAterIAl selectIon
Provides a smooth constant control of the door through its full opening and closing cycle. 180° door swing can be achieved when door, frame, hardware and arm function do not interfere. Non-handed With few exceptions all series 8301/ 8501 door closers are non-handed and can be installed on either right- or left-hand swing doors.