Intent 1:
To limit the probability of:
- excessive corrosion of straps,
- inadequate strength of straps, or
- failure of the bond between mortar and straps under
lateral loads.
This is to limit the probability of
buckling or tensile failure of the straps under lateral loads, which
could lead to 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.