9.26.7.5.(1)

Intent 1:

To limit the probability of:

• an inadequate resistance to wind-uplift loads, which could lead to lifting and breakage of shingle tabs, or
• excessively large spots of cement, which could lead to blistering of shingles due to a reaction with solvents, which could lead to compromised water resistance.

This is to limit the probability of water penetrating directly to roof decking or sheathing.

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.