Sentence 9.27.7.6.(1)

Intent 1:

To limit the probability of:

• an inability to effectively shed water, or
• premature failure of shingles or shakes due to weather erosion.

This is to limit the probability of precipitation or meltwater ingress, which could lead to deterioration, which could lead to the structural failure of exterior walls or elements protected by exterior walls, which could lead to harm to persons.