What is the purpose of base flashing at a roof-to-wall intersection?
Correct Answer
D) Direct water onto the roof membrane and protect the transition
Base flashing protects roof transitions and directs water back to the drainage plane.
Why This Is the Correct Answer
Base flashing protects roof transitions and directs water back to the drainage plane.
Why the Other Options Are Wrong
Option A: The roofing crew should increase electrical current
The trap in A is Increase electrical current. That selection is wrong because the choice would not get the project to Direct water onto the roof membrane and protect the transition, which is the Roof flashing integration result verified by the source; Base flashing protects roof-to-wall transitions from water entry.
Option B: The roofing crew should replace deck fastening
Choice B gives Replace deck fastening. Its specific error: the option tries to substitute, waive, or delete the Roof flashing integration control; the item instead requires Direct water onto the roof membrane and protect the transition.
Option C: The roofing crew should set pipe invert elevation
Choice C (Set pipe invert elevation) is rejected because it describes work from another assembly, while the Roof flashing integration item is asking for Direct water onto the roof membrane and protect the transition.
Memory Technique
File roof flashing integration under a closeout folder: condition first, number or duty second, answer Direct water onto the roof membrane and protect the transition.
Reference Hint
Open Roofing Construction and Estimating, 1995 / 2022 reprint; use by topic index - flashing / drainage / roof drains / traffic protection to confirm that Base flashing protects roof transitions and directs water back to the drainage plane.
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