9.27.3.8.(4)

Intent 1:

To limit the probability of:

• inadequate up-stand inboard of the sheathing membrane or sheathing installed in lieu of the sheathing membrane,
• inadequate slope to the exterior,
• lack of end dams or inadequate height of end dams,
• inadequate lap over the building element below, and
• lack of a drip or inadequate offset of the drip from the face of the building element below.

This is to limit the probability of precipitation or meltwater ingress, or an inadequate dissipation of precipitation or meltwater to the exterior, which could lead to the excessive accumulation of moisture.

This is to limit the probability of deterioration, which could lead to compromised structural integrity of exterior walls or elements protected by exterior walls, which could lead to harm to persons.