A replacement window is sealed at the exterior face, but the sill pan outlet is blocked by trim. What risk increases?
Correct Answer
C) Water retention and intrusion around the opening.
The blocked outlet prevents the sill pan from draining as intended, increasing retained water and leakage risk. Restore the drainage path while preserving the applicable flashing detail. Source: https://basc.pnnl.gov/resource-guides/windows-and-doors-are-fully-flashed
Why This Is the Correct Answer
The blocked outlet prevents the sill pan from draining as intended, increasing retained water and leakage risk. Restore the drainage path while preserving the applicable flashing detail. Source: https://basc.pnnl.gov/resource-guides/windows-and-doors-are-fully-flashed
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