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Fire Rated Assemblies - Compliance

What is considered an assembly within a fire rated door system?

Any examples are for illustrative purposes only. 

NFPA 80 (2010 edition) Standard for Fire Doors and Other Opening Protectives defines a fire door assembly as “any combination of a fire door, a frame, hardware, and other accessories that together provide a specific degree of fire protection to the opening.”

Assemblies include, but are not limited to, the following components:
Door frameLatchset and/or lockset
HingesStrike plate
Door leaf including rating labelCloser
Glazing (glass) and glazing frameCoordinator
Transoms or side lights    Gasketing
Protective PlatesExit hardware
Flush BoltDoor holder / release device
If a component of a fire rated assembly is changed, then the change must result in the overall assembly still being compliant for its fire rating designation.  Just because a component, in and of itself, has the appropriate rating designation, may not mean that the design of the resulting assembly of components has been accepted by the testing authority. 
For same-product replacement of individual components (such as replacing a broken door closer with a new closer), as long as the new component is listed for use with the door in question, then the door assembly remains compliant. If not, then the resulting altered assembly must be validated by a field study of the assembly by a qualified entity.

Reference LS.02.01.10 EP9 
Last updated on March 16, 2021
Manual: Ambulatory
Chapter: Life Safety LS

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