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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"
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
What is the total cost, excluding tax, of 350 square feet of B&S gage 20 copper sheeting priced at
$3.75 per pound? ✔Correct Answer--$1,968.75 formula: 350sq x 1.5lb/sq x 3.75/lb = answer
According to OSHA, each scaffold component shall be capable of supporting, without failure, _____
times the maximum intend load. ✔Correct Answer--4
According to the NRCA, which of the following roof coverings is acceptable to reroof without first
removing the existing layer of roof covering down to the roof deck? ✔Correct Answer--asphalt
shingles
According to NRCA, for re-cover installation of asphalt shingles, all of the following should precede
installation of new materials except: ✔Correct Answer--removal of securely attached shingles
When reproofing over wood panel decks, holes in wood roof decks that are approximately 10 inches
wide can be covered with ____ gauge steel and the steel plate must overlap the wood roof deck a