3.3.6.6.(2)

Intent 1:

To limit the probability of the excessive accumulation of ammonium nitrate decomposition gases, which could lead to an explosion, which could lead to harm to persons.

Intent 2:

To limit the probability that buildings of excessive height will lead to delays in accessing the roof to carry out firefighting operations, which could lead to the spread of fire to other parts of the building, which could lead to harm to persons, including emergency responders.

Intent 3:

To limit the probability that an explosion of the ammonium nitrate will lead to harm to persons on other storeys.

Intent 4:

To limit the probability that a storey above the storage area will collapse during a fire, which could lead to the introduction of enough pressure necessary to lead to an explosion, which could lead to harm to persons, including emergency responders.