Intent 1:
To limit the probability of:
- excessive flexibility in the connection between masonry
veneer and backup framing, or
- an inability to resist lateral loads.
This is to limit the probability of
the excessive flexing of masonry veneer, which could lead to cracking
or buckling.
Where masonry units support or are part of an environmental
separator, this is to limit the probability of excessive moisture
transfer through mortar joints or cracked masonry.
This is to limit the probability of:
- condensation,
- precipitation ingress,
- moisture ingress,
- excessive heat transfer,
- pollutant ingress, or
- compromised thermal performance of components intended
to resist heat transfer.
This is to limit the probability of:
- an inadequate control of temperatures in interior spaces,
drafts, 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 further 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.