Sentence 9.20.11.2.(2)

Intent 1:

To limit the probability of:

• inadequate interlocking of supporting walls with supported walls, and
• concentrations of stress at points of connection.

This is to limit the probability of failure of connections between intersecting walls under lateral loads, which could lead to an inability to transfer lateral loads from masonry walls to intersecting walls intended to provide lateral support, which could lead to inadequate lateral stiffness, which could lead to an inability to resist lateral loads or inadequate distribution of gravity loads, which could lead to cracking or buckling.

Where transverse masonry walls support an environmental separator, this is to limit the probability of deformation or cracking, which could lead to the displacement or failure of required environmental separation elements.

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.