ILLINOIS ROOFING EXAM QUESTIONS
AND AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED +
How many eaves does a gable roof have? – Answer ✔✔
A gable roof has 2 eaves
How many rakes does a gable roof have? – Answer ✔✔
A gable roof has 4 rakes
Does a hip roof have any rakes? – Answer ✔✔
No, a hip roof does not have rakes
How many hips does a hipped roof have? – Answer ✔✔
A hipped roof has 4 hips
How many eaves are on a hipped roof? – Answer ✔✔
A hipped roof has 4 eaves
Eave – Answer ✔✔
The lower edge of a roof that extends outward past the exterior wall of a building
Hip -ANSWER ✔✔The inclined external angle of formed by the two sloping sides
of a hip roof.
Ridge -ANSWER ✔✔The highest point on the roof represented by horizontal line
where two roof areas intersect.
,Slope -ANSWER ✔✔The incline angle of a roof surface expressed as a ratio of the
rise of the roof to the run of the roof, expressed in inches.
A 45 degree angle is a slope of -ANSWER ✔✔12:12
What makes a roof assembly ? -ANSWER ✔✔A roof deck plus the roof system.
Which of these is NOT among the purposes of a roof deck? -ANSWER
✔✔Provide waterproofing and moisture control
Which of the following is a non stationary load that a roof deck must be able to
support? -ANSWER ✔✔An installers mobile equipment up on the roof.
What is the purpose of light weight insulated concrete? -ANSWER ✔✔To form or
fill or provide insulation.
Which type of concrete is designed to hold weight? -ANSWER ✔✔Structural
concrete.
Which type of decking withholds most moisture? -ANSWER ✔✔OSB
Why does the NRCA recommend replacing composite roof deck made of
laminated insulation & OSB? -ANSWER ✔✔Their tendency to hold moisture can
lead to dimensional changes and fastener back out.
, When you are installing a wood deck made of boards,planks,plywood,or OSB,
which of the following is the most accurate statement ? -ANSWER ✔✔The
thickness of the wood material is based on the design loads of the building.
Which statement most likely accurately describes wood plank and wood panels
decks? -ANSWER ✔✔The proper thickness of wood material is determined by the
design of the loads.
Which statement most accurately describes the best roofing systems? -ANSWER
✔✔A system that is matched to building specifications and characteristics.
How should the reinforcement component of a built-up roof system installed? -
ANSWER ✔✔Embedded between layers of waterproofing material.
While heating up the bitumen material in a kettle on the jobsite, which of the
following should you do? -ANSWER ✔✔Circulate the bitumen material on a
regular basis while the heating is going on.
Which of these is the best way to apply built up roof piles in low slope roof
membranes? -ANSWER ✔✔As a complete roof membrane in a single day.
Which of the following serves as a weather proofing componant in single ply slope
roof membranes? -ANSWER ✔✔Thermoset or thermoplastic membranes.
What is the purpose of an expansion joint in low slope roofing systems? -
ANSWER ✔✔To minimize the effects the stresses and movements in a roofing
system.
AND AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED +
How many eaves does a gable roof have? – Answer ✔✔
A gable roof has 2 eaves
How many rakes does a gable roof have? – Answer ✔✔
A gable roof has 4 rakes
Does a hip roof have any rakes? – Answer ✔✔
No, a hip roof does not have rakes
How many hips does a hipped roof have? – Answer ✔✔
A hipped roof has 4 hips
How many eaves are on a hipped roof? – Answer ✔✔
A hipped roof has 4 eaves
Eave – Answer ✔✔
The lower edge of a roof that extends outward past the exterior wall of a building
Hip -ANSWER ✔✔The inclined external angle of formed by the two sloping sides
of a hip roof.
Ridge -ANSWER ✔✔The highest point on the roof represented by horizontal line
where two roof areas intersect.
,Slope -ANSWER ✔✔The incline angle of a roof surface expressed as a ratio of the
rise of the roof to the run of the roof, expressed in inches.
A 45 degree angle is a slope of -ANSWER ✔✔12:12
What makes a roof assembly ? -ANSWER ✔✔A roof deck plus the roof system.
Which of these is NOT among the purposes of a roof deck? -ANSWER
✔✔Provide waterproofing and moisture control
Which of the following is a non stationary load that a roof deck must be able to
support? -ANSWER ✔✔An installers mobile equipment up on the roof.
What is the purpose of light weight insulated concrete? -ANSWER ✔✔To form or
fill or provide insulation.
Which type of concrete is designed to hold weight? -ANSWER ✔✔Structural
concrete.
Which type of decking withholds most moisture? -ANSWER ✔✔OSB
Why does the NRCA recommend replacing composite roof deck made of
laminated insulation & OSB? -ANSWER ✔✔Their tendency to hold moisture can
lead to dimensional changes and fastener back out.
, When you are installing a wood deck made of boards,planks,plywood,or OSB,
which of the following is the most accurate statement ? -ANSWER ✔✔The
thickness of the wood material is based on the design loads of the building.
Which statement most likely accurately describes wood plank and wood panels
decks? -ANSWER ✔✔The proper thickness of wood material is determined by the
design of the loads.
Which statement most accurately describes the best roofing systems? -ANSWER
✔✔A system that is matched to building specifications and characteristics.
How should the reinforcement component of a built-up roof system installed? -
ANSWER ✔✔Embedded between layers of waterproofing material.
While heating up the bitumen material in a kettle on the jobsite, which of the
following should you do? -ANSWER ✔✔Circulate the bitumen material on a
regular basis while the heating is going on.
Which of these is the best way to apply built up roof piles in low slope roof
membranes? -ANSWER ✔✔As a complete roof membrane in a single day.
Which of the following serves as a weather proofing componant in single ply slope
roof membranes? -ANSWER ✔✔Thermoset or thermoplastic membranes.
What is the purpose of an expansion joint in low slope roofing systems? -
ANSWER ✔✔To minimize the effects the stresses and movements in a roofing
system.
