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C-39 Roofing Trade Practice Exam Newest 2025/2026 Complete 70 Questions And Correct Detailed Answers (Verified Answers) |Already Graded A+||Brand New Version!!
Roof valley flashing must extend ________ from the centerline in each direction for wood shakes, asbestos-cement, and slate shingles, and clay and concrete tile. - ANSWER-11"
Roof valley flashing must extend ________ from the centerline in each direction for wood and metal shingles. - ANSWER-8"
According to the Building Code, not more than _______ overlays of asphalt shingles may be applied over an existing asphalt shingle roof. - ANSWER-2
Before cementing, tile should be: - ANSWER-Damp
To start up a felt-laying machine: - ANSWER-Try out in another
area before starting
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What is the purpose of using felt on built-up roofs - ANSWER- To create a "welding" process
What sort of rope is used with a pulley? - ANSWER-Hemp or "Manila rope"
Which of the following is always true about roofing nails? - ANSWER-They should be designed specifically for roofing
How many layers of flashing should be installed around a vent pipe on a tile roof? - ANSWER-2
Corrugated aluminum roofing should have an overlap at the
ends of: - ANSWER-6"
Loads placed on a roof should generally be placed over: -
ANSWER-Beams & trusses
How many workers can be supported by one 5,000-pound safety line? - ANSWER-1
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