A shed roof face is 38 feet long with a 29-foot rafter length. How many roofing squares are in that face before waste?
Correct Answer
D) 11.02 squares.
The area is 38 x 29 = 1,102 square feet. One roofing square is 100 square feet, so the roof has 11.02 squares.
Why This Is the Correct Answer
The area is 38 x 29 = 1,102 square feet. One roofing square is 100 square feet, so the roof has 11.02 squares.
Why the Other Options Are Wrong
Option A: 10.46 squares.
10.46 squares. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 10.78 squares total.
10.78 squares total. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 10.92 squares total.
10.92 squares total. is below the supported result for roofing quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Roofing Quantity cart for Estimating Roof: area first, title second, whole units last.
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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