1 Hour Smoke Barrier Door Requirements

1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have.

1 hour smoke barrier door requirements.

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. In existing health care occupancies the requirement is reduced to a half hour fire resistance rating. 1 1 1 smoke barriers 1 1 3b a. 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.

Doors in smoke barriers there are three use groups in the ibc that mention smoke barriers. Louvers are not allowed in doors in smoke partitions. 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. For testing requirements see section 715 4 3.

The primary difference between smoke barriers and smoke partitions originates from their required fire resistance ratings. Any penetrations of the smoke barrier must be sealed to maintain the fire resistance and to ensure that the barrier is relatively smoke tight. The ibc mandates fire door assemblies with a 20 minute rating in 3 locations. 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.

The doors in the smoke barrier may or may not be required to be fire protection rated. Section 709 3 of the ibc establishes the requirement for smoke barriers to possess a 1 hour fire resistance 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. 715 3 5 3 smoke and draft control door labeling requirements.

For testing requirements see section 715 4 3. 715 4 3 door assemblies in corridors and smoke barriers. A 1 1 see annex k for general information about fire doors. When the 1 hour smoke barrier is in a health care occupancy the ibc and nfpa 101 include an.

Section 407 4 i 2 408 6 i 3 and 422 2.