Sentence 9.21.3.8.(1)

  1. OP1
  2. OS2
  3. OS1

Objective

OS2 Structural Safety

Attribution

Intent

Intent 1:

To limit the probability that, on severe overheating [i.e. during a chimney fire], the expansion of the liners will put stress on the masonry surrounding the flue liners, which could lead to cracking, which could lead to water ingress, which could lead to structural damage due to freeze-thaw stresses, which could lead to harm to persons.

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