Practice Exam Questions And Correct

Asphalt Roofing Installer Certification Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which roof slope is most suitable for standard asphalt shingles?

A. 1:12

B. 2:12

C. 4:12

D. 12:12

Rationale: Standard shingles require moderate slope for proper drainage

and adhesion.

• What is the primary purpose of underlayment?
• Improve ventilation
• Provide secondary water protection
• Add structural strength 1 / 4

• Reduce shingle temperature

Rationale: Underlayment acts as a moisture barrier beneath shingles.

• Which type of asphalt shingle typically offers the longest service life?
• 3-tab
• Architectural (laminated)
• Organic-mat
• Utility grade

Rationale: Architectural shingles have thicker layers and improved

durability.

• What nail type is recommended for asphalt shingles?
• Aluminum
• Copper
• Galvanized steel roofing nails
• Staples

Rationale: Galvanized nails resist corrosion and secure shingles reliably.

• What is the minimum number of nails required per standard shingle

(normal wind zone)?

• 2
• 3
• 4
• 6

Rationale: Four nails ensure adequate holding strength in standard areas. 2 / 4

• Which component sits at the roof’s outer edges to prevent water

intrusion?

• Ridge vent
• Drip edge
• Underlayment
• Cricket

Rationale: Drip edge protects the deck edge and directs water into gutters.

• What is the common spacing between nails on a shingle?
• 2 inches
• As marked by manufacturer
• 6 inches always
• 12 inches

Rationale: Manufacturers specify spacing to maintain wind resistance

compliance.

• What is the correct placement of starter shingles?
• At the ridge
• In valleys
• At eaves
• Around vents

Rationale: Starter shingles provide adhesion and seal the first shingle

course.

• Which roof area requires metal flashing? 3 / 4

• Ridges
• Eaves
• Chimney intersections
• Field shingles

Rationale: Flashing prevents water infiltration at penetrations and

intersections.

• What underlayment is required for ice-prone regions?
• Standard felt
• Ice and water shield
• Synthetic mesh
• Radiant barrier

Rationale: Ice and water shield protects from ice dams and backing water.

• What is the main cause of premature shingle failure?
• Proper ventilation
• Poor ventilation
• Using galvanized nails
• Installing starter shingles

Rationale: Trapped heat and moisture deteriorate asphalt prematurely.

• What is the correct installation direction?
• Right to left
• Upward
• Bottom to top
• / 4