Roofing Practice Exam #2 |78 Q’s and A’s
According to NRCA roofing manual: steep-slope roof systems, what is
recommended nail spacing to fasten battens to the deck? - -12"
- According to OSHA, a toeboard shall be required along the edge of
platforms more than ______ above lower levels for a distance sufficient to
protect employees below. - -10 feet
- What is the recommenced weight for copper standing seams roofs with
widths between seams of excess of 20"? - -20 oz
- The NRCA recommends that polyvinyl chloride sheet roofing comply with
which ASTM standard? - -ASTM D 44434
- Spray Polyurethane Foam (SPF) roofing systems require a protective
surfacing for all of the following reasons except: - -provide walkways for four
traffic
- Drip Edges shall be mechanically fastened at _____ on center. - -12"
- Type I asphalt has a minimum ductility of _______ centimeters. - -10.0
- According to roofing construction and estimating, when flashing a vent
pipe on a concrete tile over an unsealed underlayment system extend the
flange of the lead vent jack under the tile course immediately _______ the
pipe. - -above
- All SBS polymer modified asphalt coated base sheets are suitable for use
as a - -base sheet in the installation of a multiple ply polymer modified
membrane system
- The dew point is the temperature at which water vapor will_______. - -
condense
- What is the temperature at which bitumen attains the proper viscosity for
built up membrane application called? - -equiviscous temperature
- If wood battens are not raised to allow for drainage they should be no
longer than ________ with approximately 1/2" separation between ends to
help drain moisture that may migrate into the roof system. - -4 feet
- According to roofing construction and estimating, a roofing felt installed on
the outside of an exterior wall is typically _______times more permeable than
a vapor barrier installed on the inside of an exterior wall. - -5
, - The NRCA recommends that ______ roofing asphalt be used for slopes
greater than 1:12. - -Type IV
- What type of flashing should be installed where the rake of the roof meets
a vertical wall? - -step flashing
- What is the minimum roof slope for metal shingles in hurricanes zones? - -
4 in 12
- According to roofing construction and estimating, what is the typical width
of tapered rigid insulation? - -24"
- Flat seams roofs that exceed 30 feet in any direction should be divided into
sections with a maximum width of ________ feet to accommodate expansion.
- -30
- What is the quantity of 10" x 8" 3/16" thick pieces of slate per square?
Allow a 3" headlamp and 3-1/2" exposure. - -515
- According to roofing construction and estimating, how are the ends of
shingles installed across the valley in a closed cut valley to be fastened? - -2
fasteners to secure the end of each shingle
- According to Florida building code, what is the ultimate design wind speed
on the northwest side of lake okeechobee for risk category I buildings? - -
130mph to 140mph
- Roofing gravel shall be embedded into a heavy top pouring of asphalt at a
rate of approximately ________ pounds of gravel per 100 square feet of built
up roof. - -400
- A particular roofing project has been calculated at 18.65 acres. How many
bundles of 24" x 4/2" wood shingles would be required to complete this roof
using an 11" exposure? - -51 bundles
- A simple rectangular house with a gable roof plan measuring 40' wide by
60' long and a 6 in 12 rise in run is to be covered with 24" x12" slate. What is
the total number of nails needed for this project slate if the slate is 3/4"
thick? - -between 12,000 and 14,000 nails (refer to answer sheet for how to
do problem)
- What is the minimum design slope for drainage of modified bitumen
membrane roofs? - -1/4:12
According to NRCA roofing manual: steep-slope roof systems, what is
recommended nail spacing to fasten battens to the deck? - -12"
- According to OSHA, a toeboard shall be required along the edge of
platforms more than ______ above lower levels for a distance sufficient to
protect employees below. - -10 feet
- What is the recommenced weight for copper standing seams roofs with
widths between seams of excess of 20"? - -20 oz
- The NRCA recommends that polyvinyl chloride sheet roofing comply with
which ASTM standard? - -ASTM D 44434
- Spray Polyurethane Foam (SPF) roofing systems require a protective
surfacing for all of the following reasons except: - -provide walkways for four
traffic
- Drip Edges shall be mechanically fastened at _____ on center. - -12"
- Type I asphalt has a minimum ductility of _______ centimeters. - -10.0
- According to roofing construction and estimating, when flashing a vent
pipe on a concrete tile over an unsealed underlayment system extend the
flange of the lead vent jack under the tile course immediately _______ the
pipe. - -above
- All SBS polymer modified asphalt coated base sheets are suitable for use
as a - -base sheet in the installation of a multiple ply polymer modified
membrane system
- The dew point is the temperature at which water vapor will_______. - -
condense
- What is the temperature at which bitumen attains the proper viscosity for
built up membrane application called? - -equiviscous temperature
- If wood battens are not raised to allow for drainage they should be no
longer than ________ with approximately 1/2" separation between ends to
help drain moisture that may migrate into the roof system. - -4 feet
- According to roofing construction and estimating, a roofing felt installed on
the outside of an exterior wall is typically _______times more permeable than
a vapor barrier installed on the inside of an exterior wall. - -5
, - The NRCA recommends that ______ roofing asphalt be used for slopes
greater than 1:12. - -Type IV
- What type of flashing should be installed where the rake of the roof meets
a vertical wall? - -step flashing
- What is the minimum roof slope for metal shingles in hurricanes zones? - -
4 in 12
- According to roofing construction and estimating, what is the typical width
of tapered rigid insulation? - -24"
- Flat seams roofs that exceed 30 feet in any direction should be divided into
sections with a maximum width of ________ feet to accommodate expansion.
- -30
- What is the quantity of 10" x 8" 3/16" thick pieces of slate per square?
Allow a 3" headlamp and 3-1/2" exposure. - -515
- According to roofing construction and estimating, how are the ends of
shingles installed across the valley in a closed cut valley to be fastened? - -2
fasteners to secure the end of each shingle
- According to Florida building code, what is the ultimate design wind speed
on the northwest side of lake okeechobee for risk category I buildings? - -
130mph to 140mph
- Roofing gravel shall be embedded into a heavy top pouring of asphalt at a
rate of approximately ________ pounds of gravel per 100 square feet of built
up roof. - -400
- A particular roofing project has been calculated at 18.65 acres. How many
bundles of 24" x 4/2" wood shingles would be required to complete this roof
using an 11" exposure? - -51 bundles
- A simple rectangular house with a gable roof plan measuring 40' wide by
60' long and a 6 in 12 rise in run is to be covered with 24" x12" slate. What is
the total number of nails needed for this project slate if the slate is 3/4"
thick? - -between 12,000 and 14,000 nails (refer to answer sheet for how to
do problem)
- What is the minimum design slope for drainage of modified bitumen
membrane roofs? - -1/4:12
