Selected reentry allows some doors to be mechanically locked and some doors must allow reentry.
Stairwell doors locked.
I seem to recall that the doors could be on magnets that release upon activation of the fire alarm and that have a touch pad that releases the doors within 15 seconds.
Can a stairwell door that leads to the outside of a hospital be locked with a lock that requires a code to unlock it.
Although the ibc would require just about all stairwell doors to be able to be unlocked remotely nfpa 101 has some exceptions.
According to 19 2 2 2 4 of the 2012.
Stair doors providing reentry must be equipped with a fail safe product and since fail safe electric strikes can t be used on fire doors a fail safe lock or fail safe exit device trim is.
Thus as with an external door a card reader can be installed on the stairwell side of the door as long as it will be overridden when a fire alarm sounds.
Commercial building stairwell doors often are locked on the stair side to prevent unauthorized entry from the stairwells into tenant spaces.
For doors that are locked on the stair side the ibc requires the locks to be capable of being unlocked simultaneously without unlatching upon a signal from the fire command center if present or a signal by emergency personnel from a single location inside the main entrance to the building.