For the material-order review at the hospital dietary expansion, the parapet run requires 128 LF of aluminum counterflashing plus 10% waste. Stock comes in 10 ft pieces. How many pieces are required?
Correct Answer
C) 15 pieces
Linear stock count equals required length with waste divided by stock length, rounded up.
Why This Is the Correct Answer
Linear stock count equals required length with waste divided by stock length, rounded up.
Why the Other Options Are Wrong
Option A: 13 pieces
13 pieces is below the supported result for aluminum counterflashing; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 14 pieces
14 pieces is below the supported result for aluminum counterflashing; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 16 pieces
16 pieces is above the supported result for aluminum counterflashing; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Field Engineer takeoff: count the condition before counting the package Tie the cue to Aluminum Counterflashing Field Engineer.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Flashing and sheet metal; stock-length takeoff; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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