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 door push plate height.
What are the requirements for hinges on a fire door.
The two most common sizes are 36 tall and 42 tall but they come in sizes from 18 to 48 usually in 2 increments armor plates on fire rated doors must be tested labeled and installed properly.
Maneuvering clearances must be free of protrusions the full height 80 min and changes in level other than thresholds.
Doors that do require a fire rating for example stairwell doors are required to have labeled plates if the plates extend above the bottom 16 inches of door height.
Frames used in masonry walls may be used with a maximum 3.
Factory installed protection plates shall be installed in accordance with the listing of the door.
The maximum force for pushing or pulling open a door shall be as follows.
Ings for a basic fire door frame unless the labeling on the frame specifically states that the frame is rated for something less than 3 hours.
Be sure the pull you choose will fit on the plate allowing for cutouts and or engraving.
B interior hinged doors.
One hinge is required for each 762 mm 30 in of door height or fraction thereof.
Screw mounting for steel fire doors rated up to and including 3 hours and wood composite type fire doors rated up to 1 1 2 hours.
Latching and locking doors that are hand activated and which are in a path of travel shall be operable with a single effort by lever type hardware by panic bars push pull activating bars or other hardware designed to provide passage without requiring the ability to grasp the opening hardware.
If a frame bears a recognized label qualifying it as a fire door frame it may sup port a 3 hour a 1 1 2 hour a 3 4 hour or a 1 3 hour door.
Engraving door pulls to plates e ngraving on plates cutouts on plates cutout and engraving on plates note.
Plates above this height could affect the fire performance of the door but can be permitted to be used if tested and approved.
4 13 11 door opening force.
1 fire doors shall have the minimum opening force allowable by the appropriate administrative authority.
While there is an exception in nfpa 101 that allows non labeled plates up to 48 inches high on fire doors leading to hazardous areas in existing health care facilities the non.
Fire doors minimum opening force allowed by code.
5 lbf 22 2n c sliding or folding doors.
Nfpa 80 standards 2 4 5 protection plates.
Attachment of protective plates to the door faces is achieved by a variety of methods such as adhesives screws or other mechanical means that might penetrate the door face to achieve holding strength.
Armor plates are used where carts are pushed through doors.
A exterior hinged doors.
