During the field-takeoff reconciliation at the school media-center infill, the slope-adjusted area for the metal roof panel order totals 17440 SF. With 12% waste, how many roofing squares are needed?
Correct Answer
B) 195.3 squares
Roofing squares equal roof square feet with waste divided by 100.
Why This Is the Correct Answer
Roofing squares equal roof square feet with waste divided by 100.
Why the Other Options Are Wrong
Option A: 174.4 squares
174.4 squares is below the supported result for metal roof panel order; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 2,170.3 squares
2,170.3 squares is above the supported result for metal roof panel order; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 203.3 squares
203.3 squares is above the supported result for metal roof panel order; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to roofing, adjust for controlling, then let Roofing Estimator set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Metal roofing; square conversion; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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