Housewrap is cut around a window and the side flashing is installed behind the lower flashing. What should be corrected?
Correct Answer
A) Shingle-lap sequence.
Opening flashing should be lapped shingle-fashion so water drains out rather than behind the assembly.
Why This Is the Correct Answer
Opening flashing should be lapped shingle-fashion so water drains out rather than behind the assembly.
Why the Other Options Are Wrong
Option B: Install acoustic insulation before cover.
Install acoustic insulation before cover. addresses a neighboring field issue, but not the condition or method control required for exterior opening flashing.
Option C: Verify material allowed for the slope.
Verify material allowed for the slope. addresses a neighboring field issue, but not the condition or method control required for exterior opening flashing.
Option D: Gaps or compression reduce performance.
Gaps or compression reduce performance. addresses a neighboring field issue, but not the condition or method control required for exterior opening flashing.
Memory Technique
Flashing is the clue; lapped is the method check for Checking Window.
Reference Hint
Study anchor (closed-book): memorize Exterior opening flashing from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code exterior opening flashing concepts; know the rule or calculation trigger without relying on exam-room lookup.
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