To limit the probability that loadbearing walls, columns and arches exposed to fire will prematurely fail or collapse, which could lead to the failure or collapse of a supported mezzanine during the time required to achieve occupant safety and for emergency responders to perform their duties, which could lead to damage to the buildings.
To limit the probability that a mezzanine, of combustible construction, exposed to fire will prematurely fail or collapse during the time required to achieve occupant safety and for emergency responders to perform their duties, which could lead to damage to the buildings.