Illinois Roofing Exam
How many eaves does a gable roof have ? - (correct Answer) - 2
How many rakes does a gable roof have ? - (correct Answer) - 4
Does a hip roof have any rakes ? - (correct Answer) - No
How many hips does a hipped roof have ? - (correct Answer) - 4
How many eves are on a hipped roof? - (correct Answer) - 4
Eave - (correct Answer) - A projecting edge of a roof that extends beyond the supporting wall.
Rake - (correct Answer) - The sloped edge fo a gable roof
Hip - (correct Answer) - The inclined external angle of formed by the two sloping sides of a hip roof.
Ridge - (correct Answer) - The highest point on the roof represented by horizontal line where two roof
areas intersect.
Slope - (correct 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 - (correct Answer) - 12:12
What makes a roof assembly ? - (correct Answer) - A roof deck plus the roof system.
Which of these is NOT among the purposes of a roof deck? - (correct Answer) - Provide waterproofing
and moisture control
Which of the following is a non stationary load that a roof deck must be able to support? - (correct
Answer) - An installers mobile equipment up on the roof.
What is the purpose of light weight insulated concrete? - (correct Answer) - To form or fill or provide
insulation.
Which type of concrete is designed to hold weight? - (correct Answer) - Structural concrete.
Which type of decking withholds most moisture? - (correct Answer) - OSB
Why does the NRCA recommend replacing composite roof deck made of laminated insulation & OSB? -
(correct 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 ? - (correct 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? - (correct Answer)
- The proper thickness of wood material is determined by the design of the loads.
, Which statement most accurately describes the best roofing systems? - (correct Answer) - A system that
is matched to building specifications and characteristics.
How should the reinforcement component of a built-up roof system installed? - (correct 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? -
(correct 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? - (correct
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? -
(correct Answer) - Thermoset or thermoplastic membranes.
What is the purpose of an expansion joint in low slope roofing systems? - (correct Answer) - To minimize
the effects the stresses and movements in a roofing system.
Which of these is the minimum recommendation for placement of expansion joints in a roof assembly? -
(correct Answer) - In the same location as the buildings structural expansion joints.
Which of these is the most appropriate for installing eave edge metal in asphalt shingle roofs? - (correct
Answer) - Extend over the flange
Which of these is the most important performance characteristic for granules on asphalt shingles? -
(correct Answer) - To protect the coating grade asphalt surface.
Which of these materials are most likely to cause more rapid deterioration in roofing systems with
vaulted or cathedral ceilings? - (correct Answer) - Asphalt based components installed over insulated non
vented decks.
What does the NRCA recommend when installing an asphalt shingle roof? - (correct Answer) - Minimum
of 6 nails per shingle should be used for the roofs in highwind regions.
Which of these is common risk from use of nail base insulation and its impact on steep slope roof
assemblies? - (correct Answer) - Condensation or moisture accumulation.
Which of these is the most likely to need to be enhanced when installing valleys in areas prone to regular
freeze throw cycles and accumulations of ice and snow? - (correct Answer) - Open valleys.
What is the purpose of batten systems in slate or tile roofs? - (correct Answer) - To strengthen the bond
between tiles or slate shingles.
Which one of the following is true? - (correct Answer) - Vapor moves from inside toward the outside of a
building in cold weather.
Where is the best place to install a built in gutter, so that if the gutter ever failed, leakage to the interior
would be very unlikely? - (correct Answer) - At the eave.
Which of the following is true? - (correct Answer) - High wind areas often require more roof fasteners or
adhesives.
How many eaves does a gable roof have ? - (correct Answer) - 2
How many rakes does a gable roof have ? - (correct Answer) - 4
Does a hip roof have any rakes ? - (correct Answer) - No
How many hips does a hipped roof have ? - (correct Answer) - 4
How many eves are on a hipped roof? - (correct Answer) - 4
Eave - (correct Answer) - A projecting edge of a roof that extends beyond the supporting wall.
Rake - (correct Answer) - The sloped edge fo a gable roof
Hip - (correct Answer) - The inclined external angle of formed by the two sloping sides of a hip roof.
Ridge - (correct Answer) - The highest point on the roof represented by horizontal line where two roof
areas intersect.
Slope - (correct 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 - (correct Answer) - 12:12
What makes a roof assembly ? - (correct Answer) - A roof deck plus the roof system.
Which of these is NOT among the purposes of a roof deck? - (correct Answer) - Provide waterproofing
and moisture control
Which of the following is a non stationary load that a roof deck must be able to support? - (correct
Answer) - An installers mobile equipment up on the roof.
What is the purpose of light weight insulated concrete? - (correct Answer) - To form or fill or provide
insulation.
Which type of concrete is designed to hold weight? - (correct Answer) - Structural concrete.
Which type of decking withholds most moisture? - (correct Answer) - OSB
Why does the NRCA recommend replacing composite roof deck made of laminated insulation & OSB? -
(correct 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 ? - (correct 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? - (correct Answer)
- The proper thickness of wood material is determined by the design of the loads.
, Which statement most accurately describes the best roofing systems? - (correct Answer) - A system that
is matched to building specifications and characteristics.
How should the reinforcement component of a built-up roof system installed? - (correct 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? -
(correct 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? - (correct
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? -
(correct Answer) - Thermoset or thermoplastic membranes.
What is the purpose of an expansion joint in low slope roofing systems? - (correct Answer) - To minimize
the effects the stresses and movements in a roofing system.
Which of these is the minimum recommendation for placement of expansion joints in a roof assembly? -
(correct Answer) - In the same location as the buildings structural expansion joints.
Which of these is the most appropriate for installing eave edge metal in asphalt shingle roofs? - (correct
Answer) - Extend over the flange
Which of these is the most important performance characteristic for granules on asphalt shingles? -
(correct Answer) - To protect the coating grade asphalt surface.
Which of these materials are most likely to cause more rapid deterioration in roofing systems with
vaulted or cathedral ceilings? - (correct Answer) - Asphalt based components installed over insulated non
vented decks.
What does the NRCA recommend when installing an asphalt shingle roof? - (correct Answer) - Minimum
of 6 nails per shingle should be used for the roofs in highwind regions.
Which of these is common risk from use of nail base insulation and its impact on steep slope roof
assemblies? - (correct Answer) - Condensation or moisture accumulation.
Which of these is the most likely to need to be enhanced when installing valleys in areas prone to regular
freeze throw cycles and accumulations of ice and snow? - (correct Answer) - Open valleys.
What is the purpose of batten systems in slate or tile roofs? - (correct Answer) - To strengthen the bond
between tiles or slate shingles.
Which one of the following is true? - (correct Answer) - Vapor moves from inside toward the outside of a
building in cold weather.
Where is the best place to install a built in gutter, so that if the gutter ever failed, leakage to the interior
would be very unlikely? - (correct Answer) - At the eave.
Which of the following is true? - (correct Answer) - High wind areas often require more roof fasteners or
adhesives.
