The porch roof roofing takeoff measures one roof face at 41 feet by 26 feet. How many roofing squares are shown before waste?
Correct Answer
D) 10.66 squares.
The area is 41 x 26 = 1,066 square feet. One roofing square is 100 square feet, so the roof has 10.66 squares.
Why This Is the Correct Answer
The area is 41 x 26 = 1,066 square feet. One roofing square is 100 square feet, so the roof has 10.66 squares.
Why the Other Options Are Wrong
Option A: 10.12 squares.
10.12 squares. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 10.28 squares total.
10.28 squares total. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 10.42 squares total.
10.42 squares total. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Measure to area, adjust for title, then let Estimating Roof set the finish line.
Reference Hint
Study anchor (closed-book): memorize Roofing quantity calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code roof covering quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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