A masonry backup wall receives insulation and veneer, but the through-wall flashing at a shelf angle is omitted. What is the moisture-control concern?
Correct Answer
A) The wall has no planned path to collect and discharge water from the cavity
Through-wall flashing collects water from the cavity and directs it to the exterior; omitting it can trap water in the wall assembly. Other choices are unrelated or false benefits.
Why This Is the Correct Answer
Through-wall flashing collects water from the cavity and directs it to the exterior; omitting it can trap water in the wall assembly. Other choices are unrelated or false benefits.
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