9.20.17.1.(1)

Intent 1:

To limit the probability of an insufficient thickness of concrete in walls, insufficient bearing of supported walls, or eccentric loads on the wall, which could lead to an inadequate resistance to lateral earth pressure or an inability to support transverse or gravity loads, which could lead to concrete cracking.

Where flat insulating concrete form walls support or are part of an environmental separator, this is to limit the probability of deformation or cracking, which could lead to the excessive deformation, displacement or failure of required environmental separation elements.

This is to limit the probability of:

• condensation,
• precipitation ingress,
• moisture ingress,
• 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 of 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.