Fire Rated Door Frame Requirements

1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have.
Fire rated door frame requirements. If a frame bears a recognized label qualifying it as a fire door frame it may support a 3 hour a 1 1 2 hour a 3 4 hour or a 1 3 hour door. Mullions 5 8 min 5 8 min 4 1 2 min 10 1 2 max 4 1 2 min 10 1 2 max 1 min 14 max up to 45 min 6 max over 45 min14 max up to 45 min sills. Frames used in masonry walls may be used with a maximum 3 hour fire door while frames used in drywall stud walls are intended to be used with a maximum 1 1 2 hour fire door. Commercial fire rated door requirements are typically determined by the fire rating of the wall and use of the door.
Fire ratings 20 45 60 90 180 minutes are granted by third party testing agencies and are labeled on the products. 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. Simpson 20 minute fire rated doors comply with major code requirements for the 20 minute fire safety classification. Fire doors can consist of a combination of materials.
The label must be provided by a certified testing agency such as underwriters laboratory and may be embossed or mechanically fastened. 1 1 4 minimum at all transom frames and at members surrounding door openings in sidelight frames. A 1 1 see annex k for general information about fire doors. Consult with individual fire door frame manufacturers listings for fire door frames that can be used in drywall stud walls with a maximum 3 hour rating.
The door frame parts include seals hardware and the structure. The basic requirements for fire rated door assemblies include. Gypsum steel timber vermiculite aluminum and glass. There are no hourly ratingsfor a basic fire door frame unless the labeling on the frame specifi cally states that the frame is rated for something less than 3 hours.
All fire rated doors and frames must include labels that indicate they ve met all testing requirements. A 3 hour door 180 min is typically required in 4 hour rated walls that separate buildings or divide a building into separate fire rated areas. On an even more granular level here is a breakdown of elements. The building owner is responsible for having the inspections done by qualified person and for maintaining proper records of the inspections.
This classification covers most residential requirements and can also meet commercial requirements for 20 minute.