To limit the probability that floor assemblies of exterior passageways that are used as part of a means of egress will fail or collapse prematurely when exposed to fire, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
To limit the probability that floor assemblies of exterior passageways that are used as part of a means of egress will fail or collapse prematurely when exposed to fire, which could lead to delays or ineffectiveness in emergency response operations, which could lead to:
This is to limit the probability of harm to persons.