Fire Rated Door Hinge Requirements

What are the requirements for hinges on a fire door.

Fire rated door hinge requirements.

The wall rating is four hours. The inspection requirements of nfpa 80 include verification that all components of a fire door assembly including the hinges are secured aligned and in working order with no visible signs of damage annex a indicates that hinges are one of the items that are especially subject to wear. Commercial fire rated door requirements are typically determined by the fire rating of the wall and use of the door. A door with a three hour fire protection rating is usually required in walls that separate buildings or that divide a large building into smaller fire areas.

Not all doors in a commercial building need to be fire rated. Fire door keep locked doors do not have door closers to ensure they remain closed in a fire situation relying on the lock alone. Looking at other fire doorset hardware locks and hinges have similar requirements for ce marking and fire certification. D d hardware has over 12 year s experiences manufacturing supplying architectural hardware products for fire rated doors such as.

For more information on fire door assemblies. 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. They may also carry certifire certification that details their suitable applications. The door must be self closing and positive latching push pull plates cannot be used on a fire rated door and ul approved hinges must be used.

Fire door requirements are set by the national fire protection association and these requirements have been incorporated into most local building codes in the united states with little to no modification. Fire rated hinges fire door locks escape door locks ansi mortise lock fire door handles etc. One hinge is required for each 762 mm 30 in of door height or fraction thereof. The wall door frame door and hardware must all be fire rated.

Five basic requirements for a fire rated opening. Nfpa 80 requires hinges and pivots to be steel base material ball bearing type and of a certain size thickness and quantity depending on the door size thickness and fire rating. Fire doors are generally fire resistant sealed frame doors made of various materials and installed in fire rated walls. Basic fire door fire door frame transom sidelight frame and window frame requirements table 1 fire door openings opening wall rating door and frame rating.