The garage roof face worksheet shows that the roofing material order starts from a 34.25-square estimate and adds 8 percent waste. How many total squares should be planned?
Correct Answer
B) 36.99 squares.
Eight percent waste gives 34.25 x 1.08 = 36.99 squares.
Why This Is the Correct Answer
Eight percent waste gives 34.25 x 1.08 = 36.99 squares.
Why the Other Options Are Wrong
Option A: 35.62 squares.
35.62 squares. is below the supported result for roofing waste calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 37.50 squares.
37.50 squares. is above the supported result for roofing waste calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 39.25 squares.
39.25 squares. is above the supported result for roofing waste calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to percent, adjust for gives, then let Adding Roof set the finish line.
Reference Hint
Study anchor (closed-book): memorize Roofing waste calculation from CSLB B General Building Study Guide; California Building Code, Title. / CSLB B General Building Study Guide estimating concepts; know the rule or calculation trigger without relying on exam-room lookup.
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