In some buildings the elevator lobby doors are required to be smoke barrier that really complicates things if delayed egress hardware is because positive latching is still required.
Elevator lobby door hardware.
Many swing doors will swing shut in response to a general alarm regardless of if the alarm is false or real or as a result of a power loss.
The 2009 edition included a requirement that the electronic lock on the lobby door must not be supplied with emergency or standby electrical power but this requirement was removed from the 2012 edition of nfpa 101 and nfpa 5000.
The lobby enclosure shall separate the elevator shaft enclosure doors from each floor by smoke partitions.
I get static from architects that want to use all glass herculite doors in those applications.
In addition to the requirements in section 709 for fire partitions doors protecting openings in the elevator lobby enclosure walls shall also comply with section 711 5 3 and penetrations of the elevator lobby enclosure by ducts and air.
Knowing whether your elevator lobby fire doors are compliant can be difficult.
Elevator lobby doors syntégra door system as with all syntégra door systems we use a full height semi concealed hinge and a full height hinge with flush hardware to create an architecturally pleasing installation that eliminates unsightly hardware.