Intent 1:
To limit the probability of:
- an inability to shed water effectively, or
- with respect to the separation of aluminum flashing
from stucco, a chemical reaction between aluminum flashing and stucco,
which could lead to the accelerated deterioration of aluminum flashing
material, which could lead to an inability to shed water.
This is to limit the probability of:
- precipitation or meltwater ingress, or
- compromised thermal performance of components intended
to provide resistance to heat transfer.
This is to limit the probability of:
- an inadequate control of temperatures of interior spaces
or relative humidity,
- the generation of pollutants from biological growth
or from materials that become unstable on wetting,
- deterioration, which could lead to compromised integrity
of exterior walls or elements protected by exterior walls, or
- water accumulation in interior spaces.
This is to limit the probability of:
- negative effects on the air quality of indoor spaces,
- the inadequate thermal comfort of persons, and
- contact with moisture.
This is to limit the probability of harm to persons.
Intent 2:
To direct Code users to Subsections 9.27.3. and 9.27.4., which contain requirements for the materials, location, and installation
of flashing and caulking for stucco.