ARCHIVED - 9.23.13.7.(6)

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9.23.13.7.(6)


Objective	OS3 Safety in Use
Attribution	[F22-OS3.1] Applies to floors and elements that support floors. [F22-OS3.7] Applies to walls, and elements that support walls, that contain doors or windows required for emergency egress.
Application	Application 1: Blocking for floor joists supporting dwarf walls that support lumber rafters and enclose finished rooms, in wood-frame constructions to which Section 9.23. applies [see Sentence 9.23.1.1.(1) for application of Section 9.23.].
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Intent	Intent 1: To limit the probability of: inadequate load distribution among floor joists, inadequate backing for insulation, or inadequate support for air barrier systems. This is to limit the probability of an inability to resist expected gravity loads. This is to limit the probability of: compromised structural integrity, or for exterior floors or environmental separators supporting a floor, the excessive deformation, displacement or failure of required environmental separation elements, which could lead to deterioration, which could lead to further compromised structural integrity. This is to limit the probability of: the excessive deflection, deformation or displacement of walls, which could lead to compromised operation of doors or windows required for egress in an emergency, or the excessive deflection or vibration of supported floors, which could lead to persons losing their balance, tripping or falling. This is to limit the probability of harm to persons.
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