Intent 1:
To limit the probability of inadequate strength
or stiffness, which could lead to an inability to resist expected
gravity or wind loads transferred to framing around openings, which
could lead to the excessive deflection or failure of roofs.
This is to limit the probability of compromised structural
integrity, which could lead to:
- the structural collapse of wood-frame construction,
- where roof and ceiling framing members support required
elements of environmental separators, the excessive deformation, displacement
or failure of these elements, which could lead to deterioration, which
could lead to further compromised structural integrity of roofs or
environmental separators, or
- where roof and ceiling framing members support assemblies
exposed to the exterior, excessive water ingress, which could lead
to deterioration.
This is to limit the probability of harm to persons.