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.

1 hour smoke barrier door requirements.

A 1 1 see annex k for general information about fire doors. Louvers are not allowed in doors in smoke partitions. 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.

When the 1 hour smoke barrier is in a health care occupancy the ibc and nfpa 101 include an. 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. 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.

This standard regulates the installation and maintenance of assemblies and devices used to protect openings in walls floors and ceilings against the spread of fire and smoke within into or out of buildings. 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. 715 4 3 door assemblies in corridors and smoke barriers.

1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have. 1 1 1 smoke barriers 1 1 3b a. Doors in smoke barriers there are three use groups in the ibc that mention smoke barriers. 715 3 5 3 smoke and draft control door labeling requirements.

The doors in the smoke barrier may or may not be required to be fire protection rated. In existing health care occupancies the requirement is reduced to a half 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. Lation of smoke doors to be in accordance with nfpa 105 standard for the installation of smoke door assemblies and other opening protectives.

The primary difference between smoke barriers and smoke partitions originates from their required fire resistance ratings.