Roofing Practice Exam #2
According to NRCA roofing manual: steep-slope roof systems, what is recommended nail spacing to
fasten battens to the deck? - Answer-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. - Answer-10 feet
What is the recommenced weight for copper standing seams roofs with widths between seams of excess
of 20"? - Answer-20 oz
The NRCA recommends that polyvinyl chloride sheet roofing comply with which ASTM standard? -
Answer-ASTM D 44434
Spray Polyurethane Foam (SPF) roofing systems require a protective surfacing for all of the following
reasons except: - Answer-provide walkways for four traffic
Drip Edges shall be mechanically fastened at _____ on center. - Answer-12"
Type I asphalt has a minimum ductility of _______ centimeters. - Answer-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. - Answer-above
, All SBS polymer modified asphalt coated base sheets are suitable for use as a - Answer-base sheet in the
installation of a multiple ply polymer modified membrane system
The dew point is the temperature at which water vapor will_______. - Answer-condense
What is the temperature at which bitumen attains the proper viscosity for built up membrane
application called? - Answer-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. - Answer-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. - Answer-5
The NRCA recommends that ______ roofing asphalt be used for slopes greater than 1:12. - Answer-Type
IV
What type of flashing should be installed where the rake of the roof meets a vertical wall? - Answer-step
flashing
What is the minimum roof slope for metal shingles in hurricanes zones? - Answer-4 in 12
According to roofing construction and estimating, what is the typical width of tapered rigid insulation? -
Answer-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. - Answer-30
According to NRCA roofing manual: steep-slope roof systems, what is recommended nail spacing to
fasten battens to the deck? - Answer-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. - Answer-10 feet
What is the recommenced weight for copper standing seams roofs with widths between seams of excess
of 20"? - Answer-20 oz
The NRCA recommends that polyvinyl chloride sheet roofing comply with which ASTM standard? -
Answer-ASTM D 44434
Spray Polyurethane Foam (SPF) roofing systems require a protective surfacing for all of the following
reasons except: - Answer-provide walkways for four traffic
Drip Edges shall be mechanically fastened at _____ on center. - Answer-12"
Type I asphalt has a minimum ductility of _______ centimeters. - Answer-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. - Answer-above
, All SBS polymer modified asphalt coated base sheets are suitable for use as a - Answer-base sheet in the
installation of a multiple ply polymer modified membrane system
The dew point is the temperature at which water vapor will_______. - Answer-condense
What is the temperature at which bitumen attains the proper viscosity for built up membrane
application called? - Answer-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. - Answer-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. - Answer-5
The NRCA recommends that ______ roofing asphalt be used for slopes greater than 1:12. - Answer-Type
IV
What type of flashing should be installed where the rake of the roof meets a vertical wall? - Answer-step
flashing
What is the minimum roof slope for metal shingles in hurricanes zones? - Answer-4 in 12
According to roofing construction and estimating, what is the typical width of tapered rigid insulation? -
Answer-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. - Answer-30
