9.26.7.2.(1)

Intent 1:

To limit the probability of:

• water leakage through cutouts between shingle tabs in the bottom course of shingles,
• insufficient overhang, or
• buckling of the starter strip.

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