Intent 1:
To limit the probability of blocking or furring
providing inadequate support and nailing surfaces for vertical edges
of interior finishes, sheathing or cladding materials, which could
lead to inadequate strength of wood-frame assemblies, which could
lead to an inability to resist expected vertical or lateral loads.
This is to limit the probability of:
- detachment or separation of interior finishes, sheathing
or cladding from supporting members,
- displacement of sheathing or cladding, or
- inadequate racking resistance for exterior walls and
lateral support of walls, where finishes, sheathing or cladding provide
required racking or buckling resistance.
This is to limit the probability of:
- compromised structural integrity,
- where elements support or are part of an environmental
separator, the failure of required environmental separation elements,
which could lead to deterioration, or
- an inability to resist expected loads, which could lead
to:
- the excessive deflection or vibration of floors, or
- the excessive movement or deformation of walls.
This is to limit the probability of:
- compromised operation of doors or windows required for
egress in an emergency, and
- persons losing their balance, tripping or falling.
This is to limit the probability of harm to persons.