Illinois Roofing License Exam
Question 1. Which of the following roofing systems is most commonly used
for residential homes in Illinois?
A. Built-up roofing (BUR)
B. Asphalt shingle roofing [Correct]
C. Green roofing
D. EPDM membrane roofing
Explanation: Asphalt shingle roofing is the dominant system for residential
homes in Illinois due to its affordability, ease of installation, and suitability for
the local climate.
Question 2. What is the primary function of underlayment in a roofing
system?
A. Decorations
B. Provides insulation
C. Provides waterproofing beneath the roofing material [Correct]
D. Supports the roof structure
Explanation: Underlayment acts as a secondary waterproof barrier below the
main roofing material, protecting the roof deck from water intrusion.
, Illinois Roofing License Exam
Question 3. Which type of roofing material is known for its longevity and
resistance to fire?
A. Asphalt shingles
B. Clay tiles [Correct]
C. Wood shakes
D. Rolled roofing
Explanation: Clay tiles are highly durable and are naturally fire-resistant,
increasing their lifespan and safety for roofing applications.
Question 4. What is the pitch of a roof?
A. The height of the attic
B. The thickness of the roofing membrane
C. The angle or slope of the roof surface [Correct]
D. The distance between rafters
Explanation: Roof pitch refers to the angle or steepness of a roof, typically
described as the ratio of vertical rise to horizontal run.
, Illinois Roofing License Exam
Question 5. In Illinois, which organization sets and enforces occupational
safety standards for roofing?
A. The National Roofing Contractors Association
B. EPA
C. OSHA [Correct]
D. ICC
Explanation: OSHA (Occupational Safety & Health Administration) establishes
and enforces workplace safety requirements in the roofing industry.
Question 6. A flat roof with no slope is most susceptible to which of the
following issues?
A. Fire hazards
B. Water ponding [Correct]
C. Wind uplift
D. Flashing corrosion
, Illinois Roofing License Exam
Explanation: Flat roofs are prone to water ponding since there is little to no
slope to allow rainwater to drain properly.
Question 7. What material is commonly used as flashing on residential roofs?
A. Asphalt
B. Aluminum [Correct]
C. Tile
D. Plywood
Explanation: Aluminum is a popular flashing material for its durability,
workability, and corrosion resistance.
Question 8. What is a major benefit of using cool roofing materials in Illinois?
A. Prevents leaks
B. Increases roof lifespan
C. Helps reduce building cooling costs [Correct]
D. Lowers noise
Question 1. Which of the following roofing systems is most commonly used
for residential homes in Illinois?
A. Built-up roofing (BUR)
B. Asphalt shingle roofing [Correct]
C. Green roofing
D. EPDM membrane roofing
Explanation: Asphalt shingle roofing is the dominant system for residential
homes in Illinois due to its affordability, ease of installation, and suitability for
the local climate.
Question 2. What is the primary function of underlayment in a roofing
system?
A. Decorations
B. Provides insulation
C. Provides waterproofing beneath the roofing material [Correct]
D. Supports the roof structure
Explanation: Underlayment acts as a secondary waterproof barrier below the
main roofing material, protecting the roof deck from water intrusion.
, Illinois Roofing License Exam
Question 3. Which type of roofing material is known for its longevity and
resistance to fire?
A. Asphalt shingles
B. Clay tiles [Correct]
C. Wood shakes
D. Rolled roofing
Explanation: Clay tiles are highly durable and are naturally fire-resistant,
increasing their lifespan and safety for roofing applications.
Question 4. What is the pitch of a roof?
A. The height of the attic
B. The thickness of the roofing membrane
C. The angle or slope of the roof surface [Correct]
D. The distance between rafters
Explanation: Roof pitch refers to the angle or steepness of a roof, typically
described as the ratio of vertical rise to horizontal run.
, Illinois Roofing License Exam
Question 5. In Illinois, which organization sets and enforces occupational
safety standards for roofing?
A. The National Roofing Contractors Association
B. EPA
C. OSHA [Correct]
D. ICC
Explanation: OSHA (Occupational Safety & Health Administration) establishes
and enforces workplace safety requirements in the roofing industry.
Question 6. A flat roof with no slope is most susceptible to which of the
following issues?
A. Fire hazards
B. Water ponding [Correct]
C. Wind uplift
D. Flashing corrosion
, Illinois Roofing License Exam
Explanation: Flat roofs are prone to water ponding since there is little to no
slope to allow rainwater to drain properly.
Question 7. What material is commonly used as flashing on residential roofs?
A. Asphalt
B. Aluminum [Correct]
C. Tile
D. Plywood
Explanation: Aluminum is a popular flashing material for its durability,
workability, and corrosion resistance.
Question 8. What is a major benefit of using cool roofing materials in Illinois?
A. Prevents leaks
B. Increases roof lifespan
C. Helps reduce building cooling costs [Correct]
D. Lowers noise
