Intent 1:
To limit the probability that the ability of vertical
assemblies to resist moisture transfer will fall significantly below
expectations, which could lead to moisture ingress from the ground.
This is to limit the probability of:
- the inadequate control of relative humidity or water
accumulation,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting, or
- deterioration, which could lead to compromised integrity
of environmental separators.
This is to limit the probability of:
- negative effects on the air quality of indoor spaces,
- the inadequate thermal comfort of persons, and
- contact with moisture.
This is to limit the probability of harm to persons.