ROOFING EXAM EXAM AND STUDY GUIDE NEWEST 2026
TEST BANK| COMPLETE 450 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS( ILLINOIS )(VERIFIED
ANSWERS) ALREADY GRADED A+ ILLINOIS ROOFING
EXAM
You are selected as a roofing contractor to bid on a project for installing
a new TPO system thathas been specified for an existing building. Along
with the new specified TPO system, the owneris also interested in
knowing the difference in cost to install a new EPDM system instead.
Thecost to install a new EPDM system instead of the new specified TPO
system on your bid will be classified as ________.
......ANSWER......Alternate
You have been selected as a qualified roofing contractor to install
30,000 SF of modified bitumenroof. You will have one five-man crew for
this project and their associated rate as follows:
a. One Foreman ($60 / hr.)
b. One Mechanic ($50 / hr.)
c. Three Laborers / Helpers ($40 / hr.)
Assuming that you will require 970 total man hours, what would be
your total labor cost for this project? ......ANSWER......44620
in regard to roofing safety, motion stopping systems are an important
component for fall protection systems. Which of the following
pg. 1
,statement is NOT true regarding motion stopping system?
......ANSWER......Warning line systems are an important component of
motion stopping systems that must be flagged maximum 6 feet with
highly visible material.
Which of the following items is NOT included in General Conditions
when estimating for a roofing project? ......ANSWER......Labor Cost
Which of the following statements is NOT true regrading roof repair and
maintenance? ......ANSWER......Typically preventative roof maintenance
costs about 15% - 20% per year of the estimated total roof replacement
costs.
As a roofing contractor you are required to hire an electrical
subcontractor to modify some of the conduits to accommodate the new
roofing system. A typical markup on the estimate provided by the
electrical subcontractor should be _____ . ......ANSWER......10%
Which of the following statements is NOT true regarding roofing
technology? ......ANSWER......A technology that captures the solar
information to assist contractors in installing the solar panels at
locations that maximize energy output is known as "InformPrepare"
Which of the following statements is NOT true regarding estimating
labor costs? ......ANSWER......Labor man hour rate generally excludes
worker's compensation, general Liability insurance and fringe benefits.
pg. 2
,Which of the following statements is NOT true regarding the overall
roofing industry and roof groups? ......ANSWER......A roof that has less
than ¼ inch of slope per foot is defined as a low-slope roof.
Which of the following are the most common causes for roof leaks and
failure? ......ANSWER......All of the above.
______________ contains multiple layers of saturated felt that are
bedded in hot bitumen / tar using mop application
......ANSWER......Built-up Roof Membrane
According to the NRCA, the average Net Profit for a roofing contractor
company is ____ . ......ANSWER......2.8%
Which of the following statements IS true regarding metal roofs?
......ANSWER......Overdriven fasteners, uneven substrate or deck
material, poorly adjusted rolling equipment and expansion / contraction
are some of the common causes of defects for metal roofs that causes
oil-canning.
After estimating a re-roofing project, you have determined that your
direct cost for this project will be $275,000. If you are targeting 25%
gross profit on this project, the total estimate for this project will be
________________ ......ANSWER......$343,750
pg. 3
, A section of the asphalt shingle roof membrane where the units overlap
to avoid water penetration is known as _________________
......ANSWER......Top Lap
End Lap
Bottom lap
overlap
correct: SNone of the above
Which of the following statements is NOT true for built-up roof
membrane (BUR)? ......ANSWER......Fluid-applied coating is the only
surfacing that can be used for BUR.
The most common type of roof membrane used for vegetative roof
systems is ______________ . ......ANSWER......Modified Bitumen
A typical cost for payment and performance bond is between
_________ . ......ANSWER......1% - 2.5%
Supervision is always included in the overhead costs.
......ANSWER......FALSE
The initial cost for "structural" metal panel is higher whereas the overall
life-cycle cost is lower compared to single-ply roofing
......ANSWER......TRUE
pg. 4
TEST BANK| COMPLETE 450 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS( ILLINOIS )(VERIFIED
ANSWERS) ALREADY GRADED A+ ILLINOIS ROOFING
EXAM
You are selected as a roofing contractor to bid on a project for installing
a new TPO system thathas been specified for an existing building. Along
with the new specified TPO system, the owneris also interested in
knowing the difference in cost to install a new EPDM system instead.
Thecost to install a new EPDM system instead of the new specified TPO
system on your bid will be classified as ________.
......ANSWER......Alternate
You have been selected as a qualified roofing contractor to install
30,000 SF of modified bitumenroof. You will have one five-man crew for
this project and their associated rate as follows:
a. One Foreman ($60 / hr.)
b. One Mechanic ($50 / hr.)
c. Three Laborers / Helpers ($40 / hr.)
Assuming that you will require 970 total man hours, what would be
your total labor cost for this project? ......ANSWER......44620
in regard to roofing safety, motion stopping systems are an important
component for fall protection systems. Which of the following
pg. 1
,statement is NOT true regarding motion stopping system?
......ANSWER......Warning line systems are an important component of
motion stopping systems that must be flagged maximum 6 feet with
highly visible material.
Which of the following items is NOT included in General Conditions
when estimating for a roofing project? ......ANSWER......Labor Cost
Which of the following statements is NOT true regrading roof repair and
maintenance? ......ANSWER......Typically preventative roof maintenance
costs about 15% - 20% per year of the estimated total roof replacement
costs.
As a roofing contractor you are required to hire an electrical
subcontractor to modify some of the conduits to accommodate the new
roofing system. A typical markup on the estimate provided by the
electrical subcontractor should be _____ . ......ANSWER......10%
Which of the following statements is NOT true regarding roofing
technology? ......ANSWER......A technology that captures the solar
information to assist contractors in installing the solar panels at
locations that maximize energy output is known as "InformPrepare"
Which of the following statements is NOT true regarding estimating
labor costs? ......ANSWER......Labor man hour rate generally excludes
worker's compensation, general Liability insurance and fringe benefits.
pg. 2
,Which of the following statements is NOT true regarding the overall
roofing industry and roof groups? ......ANSWER......A roof that has less
than ¼ inch of slope per foot is defined as a low-slope roof.
Which of the following are the most common causes for roof leaks and
failure? ......ANSWER......All of the above.
______________ contains multiple layers of saturated felt that are
bedded in hot bitumen / tar using mop application
......ANSWER......Built-up Roof Membrane
According to the NRCA, the average Net Profit for a roofing contractor
company is ____ . ......ANSWER......2.8%
Which of the following statements IS true regarding metal roofs?
......ANSWER......Overdriven fasteners, uneven substrate or deck
material, poorly adjusted rolling equipment and expansion / contraction
are some of the common causes of defects for metal roofs that causes
oil-canning.
After estimating a re-roofing project, you have determined that your
direct cost for this project will be $275,000. If you are targeting 25%
gross profit on this project, the total estimate for this project will be
________________ ......ANSWER......$343,750
pg. 3
, A section of the asphalt shingle roof membrane where the units overlap
to avoid water penetration is known as _________________
......ANSWER......Top Lap
End Lap
Bottom lap
overlap
correct: SNone of the above
Which of the following statements is NOT true for built-up roof
membrane (BUR)? ......ANSWER......Fluid-applied coating is the only
surfacing that can be used for BUR.
The most common type of roof membrane used for vegetative roof
systems is ______________ . ......ANSWER......Modified Bitumen
A typical cost for payment and performance bond is between
_________ . ......ANSWER......1% - 2.5%
Supervision is always included in the overhead costs.
......ANSWER......FALSE
The initial cost for "structural" metal panel is higher whereas the overall
life-cycle cost is lower compared to single-ply roofing
......ANSWER......TRUE
pg. 4
