OH1 Indoor Conditions

To limit the probability of excessive eccentricity of loads and instability.

Where masonry units support or are part of an environmental separator, this is to limit the probability of cracking of masonry or mortar, which could lead to excessive moisture transfer.

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.