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9.23.13.8.(6) | Application | Intent |
OS2 | OP2 | OH1 | OS1 | OS3 |
Objective | OS3 Safety in Use |
Attribution | |
Application | Application 1: Minimum number of nails fastening together lumber
ceiling joists that are shorter than the width of the roof and that act as
ties for rafters that are not supported at the ridge, 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 that ceiling joist splices will
be unable to resist tension forces imposed by expected gravity and lateral
loads on rafters, which could lead to the lower end of rafters moving outward,
which could lead to:
This is to limit the probability of the excessive
deflection of supporting walls, which could lead to compromised operation
of doors or windows required for egress in an emergency, which could lead
to harm to persons.
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