A crew needs 29 rolls of underlayment, and each roll covers 215 square feet. How many square feet can be covered?
Correct Answer
A) 6,235 square feet.
Coverage is 29 rolls times 215 square feet per roll, or 6,235 square feet.
Why This Is the Correct Answer
Coverage is 29 rolls times 215 square feet per roll, or 6,235 square feet.
Why the Other Options Are Wrong
Option B: 5,935 square feet total.
5,935 square feet total. is below the supported result for material coverage calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 6,450 square feet total.
6,450 square feet total. is above the supported result for material coverage calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 6,880 square feet total.
6,880 square feet total. is above the supported result for material coverage calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Material Coverage cart for Checking Roof: rolls first, times second, whole feet last.
Reference Hint
Study anchor (closed-book): memorize Material coverage calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code roof underlayment quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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