1 Hour Smoke Barrier Door Requirements

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1 hour smoke barrier door requirements. 4 3 2 1 1 2 3 3ª 1 1 2 1 1 2 fire barriers having a required fire resistance rating of 1 hour. Smoke and draft control doors complying with ul 1784 shall be labeled in accordance with section 715 3 5 1 and shall show the letter s on the fire rating label of the door. Section 407 4 i 2 408 6 i 3 and 422 2. The fire protection ratings of the protective openings on smoke barriers are required to be a minimum of 1 3 hour 20 minutes or at least a door that is 1 inches thick solid core door with.

For testing requirements see section 715 4 3. Any penetrations of the smoke barrier must be sealed to maintain the fire resistance and to ensure that the barrier is relatively smoke tight. Section 709 3 of the ibc establishes the requirement for smoke barriers to possess a 1 hour fire resistance rating. Type of assembly required assembly rating hours minimum fire door fire assembly fire rating hours fire walls and fire barriershaving a required fire resistance rating greater than 1 hour.

When the 1 hour smoke barrier is in a health care occupancy the ibc and nfpa 101 include an. The ibc mandates fire door assemblies with a 20 minute rating in 3 locations. Corridor walls that are required to be fire partitions with a 1 hour or hour rating other fire partitions with a hour rating and smoke barriers with a 1 hour rating. Two doors each with a fire protection rating of 1 hours installed on opposite sides of the same opening in a fire wall shall be deemed equivalent in fire protection rating to one 3 hour fire door.

Lation of smoke doors to be in accordance with nfpa 105 standard for the installation of smoke door assemblies and other opening protectives. Louvers are not allowed in doors in smoke partitions. The primary difference between smoke barriers and smoke partitions originates from their required fire resistance ratings. The doors in the smoke barrier may or may not be required to be fire protection rated.

Doors in smoke barriers there are three use groups in the ibc that mention smoke barriers. 715 4 3 door assemblies in corridors and smoke barriers. 715 3 5 3 smoke and draft control door labeling requirements.