9.25.3.2.(1)

Intent 1:

To limit the probability of an inadequate resistance of air barrier system components to air pressure loads, which could lead to:

• rupturing, tearing or puncturing at fasteners, or
• the opening of joints.

This is to limit the probability of a loss of airtightness, which could lead to:

• condensation, or
• precipitation ingress due to air pressure differences.

This is to limit the probability of deterioration, which could lead to compromised structural integrity of assemblies acting as or protected by environmental separators, which could lead to harm to persons.