9.29.10.5.(1)

Intent 1:

To limit the probability that the performance of caulking will fall significantly below expectations, which could lead to the premature failure of caulking, which could lead to the failure of tiles and substrates on repeated exposure to water, which could lead to the ingress of water into assemblies.

This is to limit the probability of the deterioration of the substrate, which could lead to:

• where the substrate contributes to the required bracing or lateral support for studs, structural failure, or
• where the substrate supports required environmental separation elements, the excessive deformation, displacement or failure of such elements, which could lead to further deterioration, which could lead to further compromised structural integrity.

This is to limit the probability of harm to persons.