Intent 1:
To limit the probability of:
- excessively rapid corrosion, which could lead to the
excessive deflection or structural failure of lintels, or
- the accumulation of corrosion by-products between lintels
and masonry, which could lead to compressive stresses.
Where masonry construction is required to provide fire resistance,
this is to limit the probability of compromised fire resistance of
the assembly, which could lead to harm to persons.