Sentence 9.20.8.1.(2)

Intent 1:

To limit the probability of localized over-stressing and crushing of wood plates under concentrated roof or floor loads transmitted through framing elements, which could lead to inadequate load distribution, which could lead to over-stressing of hollow masonry units, which could lead to cracking of such units.

This is to limit the probability of:

• compromised structural integrity of masonry construction,
• where masonry construction is part of an environmental separator, the displacement or failure of required environmental separation elements, which could lead to deterioration, or
• in assemblies exposed to moisture or the exterior, damage and deterioration.

For floors and elements supporting floors, this is to limit the probability of excessive movement, deflection or vibration, which could lead to negative effects on the psychological well-being of persons.

Intent 2:

To exempt situations where another means of distributing roof and floor loads is provided from the application of Sentence 9.20.8.1.(1).