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9.7.3.1.(1)
OS2OH1OS1
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Glass, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], including glass in doors and sidelights [see Sentence 9.6.6.2.(1)].
Application 2: 
This also applies in buildings to which Part 3 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 3], with respect to glass in doors and in sidelights that could be mistaken for doors, within or at the entrance to dwelling units and in public areas, as stated in Sentences 3.3.1.19.(5) and 9.6.6.2.(1).
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Intent
Intent 1: 
To limit the probability that the performance of glass will fall significantly below expectations, which could lead to failure, which could lead to harm to persons.
Intent 2: 
[Clauses (e) and (h)] To limit the probability that the performance of insulating glass will fall significantly below expectations, which could lead to inadequate control of heat transfer, which could lead to compromised structural integrity of window assemblies and adjacent exterior wall assemblies, which could lead to condensation on interior glass surfaces, which could lead to deterioration, which could lead to harm to persons.
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