3.4.1.10.(1)

Intent 1:

To limit the probability that glazing will be involved in, or contribute to, the spread of fire within an exit, which could lead to harm to persons using the exit.

Intent 2:

To limit the probability that glazing will prematurely fail when exposed to fire from outside the exit, which could lead to the spread of fire into the exit, which could lead to harm to persons using the exit, including emergency responders.

Intent 3:

To limit the probability that glazing will prematurely fail when exposed to fire from outside the exit, which could lead to the spread of fire into the exit, which could lead to emergency responders being delayed in gaining access to a floor area, which could lead to delays or ineffectiveness in fire emergency response operations, which could lead to:

• delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and
• the spread of fire to other parts of the building, which could lead to harm to persons.