1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS3
  6. OS1


OP2 Structural Sufficiency of the Building


[F20-OP2.3]Applies to elements that support or are part of an environmental separator.


Intent 1:

To limit the probability of:

  • an excessive loss of water due to evaporation,
  • the freezing of concrete before the initial set,
  • slowed hydration of the concrete, or
  • the freezing and expansion of the excess water not used in hydration.

This is to limit the probability of:

  • a failure to develop sufficient compressive strength before building loads are applied,
  • shrinkage and cracking, or
  • the failure of internal bonds.

This is to limit the probability of compromised structural integrity, which could lead to:

  • structural failure,
  • where concrete supports or is used in an environmental separator, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements, which could lead to further compromised structural integrity, or
  • where concrete supports walls or floors, an inability to resist expected loads, which could lead to
    • the excessive deformation or deflection of walls, or
    • the excessive deflection or vibration of floors.

This is to limit the probability of:

  • the space being unsuitable for its intended use,
  • compromised operation of windows and doors, and
  • damage to the building.
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