9.30.1.2.(1)

Intent 1:

To limit the probability of the inadequate protection of subfloors, which, on repeated exposure to water, could lead to:

• the generation of pollutants from biological growth or from materials that become unstable on wetting, or
• the deterioration of the subfloor.

This is to limit the probability of negative effects on the air quality of indoor spaces, which could lead to harm to persons.