Roofing
Roofing Practice Exam #1 Study Questions
and Answers 2025 Graded A
According to the architectural sheet metal manual, what is the minimum thickness of a
4" x 6" plain rectangular copper downspout? -Correct Answer ✔16 Oz
When using step or channel flashing where a tile roof area intersects a side wall, NRCA
recommends extending the flashing a minimum of ______ up the wall. -Correct Answer
✔4" inch
When installing EPDM waterproofing, lay the membrane on the substrate or flat surface
and allow it to relax for a minimum of ______ before use -Correct Answer ✔30 minutes
Which of the following is not a potential problem of ponding water due to the lack of
drainage on a low slope roof? -Correct Answer ✔Membrane Seperation
According to Roofing Construction and Estimating, how many bundles of No. 2
Tapersplit shakes are required per square of roofing when applied with 1/2" inch
spacing and 7-1/2" exposure? -Correct Answer ✔6.67 Bundles
Each self-supporting ladder shall be capable of supporting, without failure, _____ times
the maximum intended load -Correct Answer ✔4
According to the architectural sheet metal manual, which of the following metals cannot
be soldered? -Correct Answer ✔Aluminum
A roll of #15 roofing felt contains ____ factory squares and is _____ square feet. -
Correct Answer ✔4; 324
A _______ provides a hidden method of anchorage to avoid the exposure of
mechanical fasteners. -Correct Answer ✔Cleat
Buildings of four stories or more in height shall be provided a stairway access to the roof
unless the roof slope is greater than ______. -Correct Answer ✔4: 12
According to Roofing Construction and Estimating, what is the most common type of
solder used on sheet metal roofing? -Correct Answer ✔50-50
According to the NRCA, what is the maximum exposure recommenced when installing
18"inch wood shingles on a slope of 4:12? -Correct Answer ✔5-1/2"
Roofing
, Roofing
According to the Florida Building Code - Test Protocols for High-Velocity Hurricanes
Zones, asphaltic shingles shall be fastened using _______ approved nails per shingle. -
Correct Answer ✔6
The NRCA recommends _____ plies of asphalt built-up membrane to resist 10" of
hydrostatic pressure head. -Correct Answer ✔3
What is the area of a plain rectangular downspout with actual dimensions of 3" x 4"? -
Correct Answer ✔12.000 inches square
What is the range of rib with for a wide rib steel deck? -Correct Answer ✔1-3/4" to 2-5/8"
How many square feet will 5 bundles of 18" x3/8" shakes cover when applied with 1/2"
spacing and an 8" exposure -Correct Answer ✔94 square feet
According to roofing construction and Estimating, what in addition to underlayment is
recommended to flash a full lace valley? -Correct Answer ✔36" wide roll roofing (50lbs
or heavier)
What is the minimum height for base flashing in a multi-ply membrane built-up roofing
system? -Correct Answer ✔8"
According the architectural sheet metal manual, standing seam roofs utilizing the pan
method. and. field formed method are recommenced for roofs having a slope of ____
per foot or greater. -Correct Answer ✔1"
According to roofing construction and estimating, when installing shingles across a
valley, fasteners shall be a minimum of _____ from the centerline. -Correct Answer ✔6"
According to NRCa, what is the approximate coverage per square for a 24", No. 1 wood
shingle with the maximum exposure? -Correct Answer ✔100 square feet
What is minimum thickness for galvanized steel valley lining material? -Correct Answer
✔0.0179"
Which go the following is recommended for falling the open valley of a tile roof system
over an unsealed underlayment system? -Correct Answer ✔26ga galvanized flashing,
2-1/2" water diverter and 1" water guards
What is the average thickness of a piece of tapered insulation sloping from 2" to 6"? -
Correct Answer ✔4"
A construction site averages 165 employees per day. How many portable toilets are
required to be on this jobsite? -Correct Answer ✔5 toilets
Roofing
Roofing Practice Exam #1 Study Questions
and Answers 2025 Graded A
According to the architectural sheet metal manual, what is the minimum thickness of a
4" x 6" plain rectangular copper downspout? -Correct Answer ✔16 Oz
When using step or channel flashing where a tile roof area intersects a side wall, NRCA
recommends extending the flashing a minimum of ______ up the wall. -Correct Answer
✔4" inch
When installing EPDM waterproofing, lay the membrane on the substrate or flat surface
and allow it to relax for a minimum of ______ before use -Correct Answer ✔30 minutes
Which of the following is not a potential problem of ponding water due to the lack of
drainage on a low slope roof? -Correct Answer ✔Membrane Seperation
According to Roofing Construction and Estimating, how many bundles of No. 2
Tapersplit shakes are required per square of roofing when applied with 1/2" inch
spacing and 7-1/2" exposure? -Correct Answer ✔6.67 Bundles
Each self-supporting ladder shall be capable of supporting, without failure, _____ times
the maximum intended load -Correct Answer ✔4
According to the architectural sheet metal manual, which of the following metals cannot
be soldered? -Correct Answer ✔Aluminum
A roll of #15 roofing felt contains ____ factory squares and is _____ square feet. -
Correct Answer ✔4; 324
A _______ provides a hidden method of anchorage to avoid the exposure of
mechanical fasteners. -Correct Answer ✔Cleat
Buildings of four stories or more in height shall be provided a stairway access to the roof
unless the roof slope is greater than ______. -Correct Answer ✔4: 12
According to Roofing Construction and Estimating, what is the most common type of
solder used on sheet metal roofing? -Correct Answer ✔50-50
According to the NRCA, what is the maximum exposure recommenced when installing
18"inch wood shingles on a slope of 4:12? -Correct Answer ✔5-1/2"
Roofing
, Roofing
According to the Florida Building Code - Test Protocols for High-Velocity Hurricanes
Zones, asphaltic shingles shall be fastened using _______ approved nails per shingle. -
Correct Answer ✔6
The NRCA recommends _____ plies of asphalt built-up membrane to resist 10" of
hydrostatic pressure head. -Correct Answer ✔3
What is the area of a plain rectangular downspout with actual dimensions of 3" x 4"? -
Correct Answer ✔12.000 inches square
What is the range of rib with for a wide rib steel deck? -Correct Answer ✔1-3/4" to 2-5/8"
How many square feet will 5 bundles of 18" x3/8" shakes cover when applied with 1/2"
spacing and an 8" exposure -Correct Answer ✔94 square feet
According to roofing construction and Estimating, what in addition to underlayment is
recommended to flash a full lace valley? -Correct Answer ✔36" wide roll roofing (50lbs
or heavier)
What is the minimum height for base flashing in a multi-ply membrane built-up roofing
system? -Correct Answer ✔8"
According the architectural sheet metal manual, standing seam roofs utilizing the pan
method. and. field formed method are recommenced for roofs having a slope of ____
per foot or greater. -Correct Answer ✔1"
According to roofing construction and estimating, when installing shingles across a
valley, fasteners shall be a minimum of _____ from the centerline. -Correct Answer ✔6"
According to NRCa, what is the approximate coverage per square for a 24", No. 1 wood
shingle with the maximum exposure? -Correct Answer ✔100 square feet
What is minimum thickness for galvanized steel valley lining material? -Correct Answer
✔0.0179"
Which go the following is recommended for falling the open valley of a tile roof system
over an unsealed underlayment system? -Correct Answer ✔26ga galvanized flashing,
2-1/2" water diverter and 1" water guards
What is the average thickness of a piece of tapered insulation sloping from 2" to 6"? -
Correct Answer ✔4"
A construction site averages 165 employees per day. How many portable toilets are
required to be on this jobsite? -Correct Answer ✔5 toilets
Roofing
