To limit the probability of waterproofing materials, components, assemblies, and systems not being capable of:
which could lead to ingress of water or moisture from the ground.
This is to limit the probability of deterioration, which could lead to compromised integrity of environmental separators, which could lead to compromised structural integrity of the separators or of elements supported or protected by the separators, which could lead to structural failure, which could lead to harm to persons.