9.7.3.1.(4)

Intent 1:

To limit the probability that the storm doors for sliding doors and their components will have:

• insufficient resistance to wind loads, which could lead to the storm door deflecting, which could lead to ingress of precipitation.
• insufficient airtightness, which could lead to condensation on the inside of the storm door component, or
• excessive air leakage, which could lead to excessive heat loss, where the sliding door assembly is single-glazed.

This is to limit the probability of damage and deterioration of the environmental separator in which the sliding door is installed, which could lead to compromised structural integrity, which could lead to structural damage, which could lead to harm to persons.