To limit the probability of inadequate resistance to or protection from surface water or water from the ground transferred by capillary action through masonry or concrete, which could lead to wood decay, which could lead to an inability to resist expected gravity or lateral loads.
For floors and constructions supporting floors, this is to limit the probability of:
This is to limit the probability of excessive movement, vibration or deflection of floors, which could lead to negative effects on the psychological well-being of persons.