When installing step flashing on a roof-to-wall intersection in California, what is the minimum overlap requirement between successive pieces of step flashing?
Correct Answer
A) 2 inches
CRC Section R903.2.1 requires step flashing pieces to overlap each other by a minimum of 2 inches. This overlap ensures continuous water protection at the critical roof-to-wall intersection, preventing water infiltration that could lead to structural damage, particularly important given California's seismic activity and building movement.
Why This Is the Correct Answer
CRC Section R903.2.1 requires step flashing pieces to overlap each other by a minimum of 2 inches. This overlap ensures continuous water protection at the critical roof-to-wall intersection, preventing water infiltration that could lead to structural damage, particularly important given California's seismic activity and building movement.
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