Core TradesQuestion 120 of 700
A kickout (diverter) flashing is installed where a roof edge meets a vertical wall at the bottom of a roof-wall intersection. Omitting it commonly causes:
a.Water dumping behind the wall cladding, leading to hidden rot at that corner
b.The roof to lift in wind
c.Excessive attic ventilation
d.The gutter to overflow upward
Explanation
A kickout flashing diverts roof runoff away from the wall and into the gutter; without it, concentrated water runs behind the siding at that corner and causes hidden rot and interior damage. It is unrelated to wind uplift, attic ventilation, or upward overflow.
Law Reference: 2025 CA Building Code / CRC (Weather Protection)Practice all 700 questions free — no signup required.
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