76. Which of the following is typical equipment found in an asphalt paving train?

A. Asphalt paver
B. MTV
C. Vibrating steel-drum roller
D. Slipform paver

77. What is the approximate crew-hours per 1,000 linear feet for erecting steel beams with welded connections using 24-inch deep W-sections?

78. A roof system has a total surface area of 3,450 square feet, which will be covered by 3-tab asphalt shingles (12x36). Considering 5% waste, how many sheets of asphalt shingles are needed?

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Answer :

TomSmith675 TomSmith675 · Answer 1 · 2024-01-03T21:21:02-05:00

Approximately 1,208 sheets of asphalt shingles are needed to cover the roof system.

To calculate the number of sheets of asphalt shingles needed, we can follow these steps:

Calculate the area covered by one sheet of shingle: 12 inches (width) x 36 inches (length) = 432 square inches.
Convert the area to square feet: 432 square inches ÷ 144 square inches/square foot = 3 square feet.
Calculate the total area of the roof, including waste: 3,450 square feet + (5% of 3,450 square feet) = 3,450 square feet + 172.5 square feet = 3,622.5 square feet.
Divide the total area of the roof by the area covered by one sheet of shingle: 3,622.5 square feet ÷ 3 square feet/sheet = 1,207.5 sheets.

Therefore, approximately 1,208 sheets of asphalt shingles are needed to cover the roof system.

Learn more about calculating the number of sheets of asphalt shingles needed for a given roof area here:

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