C-39 Roofing Trade Practice Exam Newest 2025/2026 Complete Questions And Correct Detailed
Answers (Verified Answers) |Already Graded A+||Brand New Version!!
A roof is 80' x 64' and one pallet has 6.45 squares of material. How many pallets are needed? -
(ANSWER)8 pallets
The size of a house with a flat roof is 25' x 28'. It has a garage with a flat roof of 15' x 18'. How much
roofing do the both of them need? - (ANSWER)10 squares
A roof is 30' x 40'. If you need 1 square for the starter, 1 square for waste, and 1 2/3 square for hip and
ridge, how much roofing material will you need? - (ANSWER)16 squares
Given that a sloped roof has an area of 1,160 sq ft. How many rolls of 15 pound felt (4 sq/roll) are
needed to cover the roof with one layer? - (ANSWER)3
Which statement is most correct? - (ANSWER)Tar is distilled from soft coal
Given a scale 1/4" = 1' what is 3'-6" - (ANSWER)7/8"
Which of the following is the correct order for installing a tile roof? - (ANSWER)Lay underlayment; snap
chalkline; load tile; install tile
What is the purpose of a shake liner? - (ANSWER)To waterproof the roof
Which of the following are you most likely to use when nailing composition roof shingles on a felted
plywood deck? - (ANSWER)Coil nail gun
Which of the following types of insulation cannot be used in direct contact with BUR? -
(ANSWER)Polystyrene board
How should you walk on a roof with flat concrete tiles? - (ANSWER)Step of the headlap of the tiles
How would you load tile onto a roof? - (ANSWER)Load 6 tiles high and 3 ft from the edge
, C-39 Roofing Trade Practice Exam Newest 2025/2026 Complete Questions And Correct Detailed
Answers (Verified Answers) |Already Graded A+||Brand New Version!!
The chalk line for installing tile should be set - (ANSWER)Perpendicular to the eave
In a moderate climate with a normal slope, how far should back flashing go upside off a chimney? -
(ANSWER)18"
Why should you not install composition single roofs when the temperature is 40* F or below? -
(ANSWER)The shingles can crack too easily with handling and nailing
What in the best way to prevent a leak behind a 36" wide masonry chimney? - (ANSWER)Install a cricket
What is the best way to walk on spaced seating? - (ANSWER)Step on the 1" x 4" and on the rafters
Composition flashing (base flashing) should be fastened with? - (ANSWER)One inch solid cap-head nails
or nails driven through tin disks
Reinforced concrete can be used as a structural deck. Which of the following is a correct statement? -
(ANSWER)Some moisture will remain in concrete decks even after the surface is dry
On plywood decks not covered with insulation, a base ply should be ____________ to serve as the base
ply of the roof membrane. - (ANSWER)Attached with annular-threaded nails
On slopes over 2 inches per foot, felt should be laid: - (ANSWER)Parallel to the slope
A roofing contractor discovers damage done by other trades to a newly installed roof. What should the
roofing contractor do? - (ANSWER)Submit a written report to the general contractor and/or owner for
any visible damage
When installing sheet-laying adhesives, the overlap should be: - (ANSWER)10"
When installing composition shingles on a roof with a slope of less than 3:12, a common practice is to: -
(ANSWER)Use double layers of 15 lb felt for an underlayment
Answers (Verified Answers) |Already Graded A+||Brand New Version!!
A roof is 80' x 64' and one pallet has 6.45 squares of material. How many pallets are needed? -
(ANSWER)8 pallets
The size of a house with a flat roof is 25' x 28'. It has a garage with a flat roof of 15' x 18'. How much
roofing do the both of them need? - (ANSWER)10 squares
A roof is 30' x 40'. If you need 1 square for the starter, 1 square for waste, and 1 2/3 square for hip and
ridge, how much roofing material will you need? - (ANSWER)16 squares
Given that a sloped roof has an area of 1,160 sq ft. How many rolls of 15 pound felt (4 sq/roll) are
needed to cover the roof with one layer? - (ANSWER)3
Which statement is most correct? - (ANSWER)Tar is distilled from soft coal
Given a scale 1/4" = 1' what is 3'-6" - (ANSWER)7/8"
Which of the following is the correct order for installing a tile roof? - (ANSWER)Lay underlayment; snap
chalkline; load tile; install tile
What is the purpose of a shake liner? - (ANSWER)To waterproof the roof
Which of the following are you most likely to use when nailing composition roof shingles on a felted
plywood deck? - (ANSWER)Coil nail gun
Which of the following types of insulation cannot be used in direct contact with BUR? -
(ANSWER)Polystyrene board
How should you walk on a roof with flat concrete tiles? - (ANSWER)Step of the headlap of the tiles
How would you load tile onto a roof? - (ANSWER)Load 6 tiles high and 3 ft from the edge
, C-39 Roofing Trade Practice Exam Newest 2025/2026 Complete Questions And Correct Detailed
Answers (Verified Answers) |Already Graded A+||Brand New Version!!
The chalk line for installing tile should be set - (ANSWER)Perpendicular to the eave
In a moderate climate with a normal slope, how far should back flashing go upside off a chimney? -
(ANSWER)18"
Why should you not install composition single roofs when the temperature is 40* F or below? -
(ANSWER)The shingles can crack too easily with handling and nailing
What in the best way to prevent a leak behind a 36" wide masonry chimney? - (ANSWER)Install a cricket
What is the best way to walk on spaced seating? - (ANSWER)Step on the 1" x 4" and on the rafters
Composition flashing (base flashing) should be fastened with? - (ANSWER)One inch solid cap-head nails
or nails driven through tin disks
Reinforced concrete can be used as a structural deck. Which of the following is a correct statement? -
(ANSWER)Some moisture will remain in concrete decks even after the surface is dry
On plywood decks not covered with insulation, a base ply should be ____________ to serve as the base
ply of the roof membrane. - (ANSWER)Attached with annular-threaded nails
On slopes over 2 inches per foot, felt should be laid: - (ANSWER)Parallel to the slope
A roofing contractor discovers damage done by other trades to a newly installed roof. What should the
roofing contractor do? - (ANSWER)Submit a written report to the general contractor and/or owner for
any visible damage
When installing sheet-laying adhesives, the overlap should be: - (ANSWER)10"
When installing composition shingles on a roof with a slope of less than 3:12, a common practice is to: -
(ANSWER)Use double layers of 15 lb felt for an underlayment
