Sentence 9.20.2.4.(1)

  1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS3
  6. OP1
  7. OS1

Objective

OP1 Fire Protection of the Building

Attribution

[F80-OP1.2]Applies to masonry used in chimneys and fireplaces.

Intent

Intent 1:

To limit the probability of an inadequate resistance to sulfate attack or stresses resulting from water absorption and freeze-thaw cycling.

For chimneys and fireplaces, this is to limit the probability of excessive heat transfer, which could lead to the ignition of combustible building components, which could lead to damage to the building.

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