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, which could lead to:
This is to limit the probability of harm to persons.
To exempt situations where another means of distributing roof and floor loads is provided from the application of Sentence 9.20.8.1.(1).