3.2.2.3.(3)

Intent 1:

To limit the probability that the lower chords of floor or roof structural framing members will be subjected to excessive temperatures in a fire situation, which could lead to their premature failure or collapse, which could lead to harm to persons, including emergency responders.

Intent 2:

To limit the probability that the lower chords of floor or roof structural framing members will be subjected to excessive temperatures in a fire situation, which could lead to their premature failure or collapse, which could lead to:

• delays or ineffectiveness in emergency response operations, or
• impairment of automatic fire suppression systems, which could lead to such systems not suppressing or controlling a fire.

This is to limit the probability of the spread of fire, which could lead to harm to persons, including emergency responders.