LOUISIANA (LA) 7-803 RESIDENTIAL ROOFING EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
1. Roofing Materials and Product Specifications
2. Roofing System Design and Structural Support
3. Flashing, Underlayment, and Drainage Systems
4. Louisiana State Building Codes (LABC) and Amendments
5. Occupational Safety and OSHA 1926 Subpart M
6. Weatherproofing, Ventilation, and Energy Efficiency
7. Estimating, Contract Law, and Ethics for Roofing Contractors
8. Fall Protection, Ladder Safety, and Scaffolding Regulations
Introduction
*This examination assesses candidate competency for the Louisiana Residential Roofing License (7-803). It
measures foundational knowledge of roofing materials, load calculations, flashing details, and state-specific
amendments to the International Residential Code (IRC). Questions are multiple-choice and scenario-based,
emphasizing real-world application, ethical decision-making, and regulatory compliance. Candidates must
demonstrate the ability to select correct materials, interpret code requirements, plan safe work access, and
apply best practices for drainage and ventilation. Each question includes a verified correct answer with a concise
rationale. This assessment prepares contractors for both legal responsibilities and on-site technical challenges in
Louisiana’s climate.*
,SECTION ONE: QUESTIONS 1 – 100
Question 1
What is the minimum required slope for asphalt shingles installed on a residential roof in Louisiana under the
LABC?
A. 1:12
B. 2:12
C. 4:12
D. 6:12
🟢 B. 2:12
🔴 RATIONALE: The Louisiana Amended IRC requires a minimum 2:12 slope for asphalt shingles with double
underlayment; 4:12 is standard without special underlayment, but 2:12 is the absolute minimum allowed under
LABC.
Question 2
A roofer observes mold on plywood sheathing during a tear-off. What is the most appropriate first action?
A. Cover with new underlayment and proceed
B. Spray bleach solution and continue installation
C. Stop work and notify the homeowner of possible moisture issue
D. Replace only the visibly moldy sheets
🟢 C. Stop work and notify the homeowner of possible moisture issue
,🔴 RATIONALE: Mold indicates chronic moisture; covering it does not solve the underlying problem.
Notification is required for ethical and liability reasons before remediation.
Question 3
According to OSHA 1926.501, at what height is fall protection required for residential roofers?
A. 6 feet
B. 10 feet
C. 12 feet
D. 15 feet
🟢 A. 6 feet
🔴 RATIONALE: For construction, including roofing, fall protection is required at 6 feet above a lower level
under 29 CFR 1926.501(b)(1).
Question 4
Which underlayment is required under metal roof panels in a high-wind coastal zone of Louisiana?
A. 30 lb felt only
B. Self-adhering polymer-modified bitumen membrane
C. Type 15 asphalt felt
D. Unperforated kraft paper
🟢 B. Self-adhering polymer-modified bitumen membrane
🔴 RATIONALE: LABC high-wind zones (≥110 mph) require self-adhering ice/water shield under metal panels to
prevent wind-driven rain infiltration.
, Question 5
A contract requires a “no dollar limit” (NDL) warranty. Who typically issues this?
A. Roofer’s liability insurer
B. Shingle manufacturer
C. General contractor
D. Homeowner’s bank
🟢 A. Roofer’s liability insurer
🔴 RATIONALE: NDL warranties in roofing contracts refer to additional insured endorsements from the
contractor’s CGL policy, not material warranties.
Question 6
What is the maximum allowable live load deflection for roof rafters?
A. L/120
B. L/180
C. L/240
D. L/360
🟢 C. L/240
🔴 RATIONALE: IRC Table R802.4.1 specifies L/240 for roof rafters with brittle finishes; L/180 is for flexible
finishes.
Question 7
During a reroof, you find step flashing missing at a dormer sidewall. What must you do?
ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
Core Domains
1. Roofing Materials and Product Specifications
2. Roofing System Design and Structural Support
3. Flashing, Underlayment, and Drainage Systems
4. Louisiana State Building Codes (LABC) and Amendments
5. Occupational Safety and OSHA 1926 Subpart M
6. Weatherproofing, Ventilation, and Energy Efficiency
7. Estimating, Contract Law, and Ethics for Roofing Contractors
8. Fall Protection, Ladder Safety, and Scaffolding Regulations
Introduction
*This examination assesses candidate competency for the Louisiana Residential Roofing License (7-803). It
measures foundational knowledge of roofing materials, load calculations, flashing details, and state-specific
amendments to the International Residential Code (IRC). Questions are multiple-choice and scenario-based,
emphasizing real-world application, ethical decision-making, and regulatory compliance. Candidates must
demonstrate the ability to select correct materials, interpret code requirements, plan safe work access, and
apply best practices for drainage and ventilation. Each question includes a verified correct answer with a concise
rationale. This assessment prepares contractors for both legal responsibilities and on-site technical challenges in
Louisiana’s climate.*
,SECTION ONE: QUESTIONS 1 – 100
Question 1
What is the minimum required slope for asphalt shingles installed on a residential roof in Louisiana under the
LABC?
A. 1:12
B. 2:12
C. 4:12
D. 6:12
🟢 B. 2:12
🔴 RATIONALE: The Louisiana Amended IRC requires a minimum 2:12 slope for asphalt shingles with double
underlayment; 4:12 is standard without special underlayment, but 2:12 is the absolute minimum allowed under
LABC.
Question 2
A roofer observes mold on plywood sheathing during a tear-off. What is the most appropriate first action?
A. Cover with new underlayment and proceed
B. Spray bleach solution and continue installation
C. Stop work and notify the homeowner of possible moisture issue
D. Replace only the visibly moldy sheets
🟢 C. Stop work and notify the homeowner of possible moisture issue
,🔴 RATIONALE: Mold indicates chronic moisture; covering it does not solve the underlying problem.
Notification is required for ethical and liability reasons before remediation.
Question 3
According to OSHA 1926.501, at what height is fall protection required for residential roofers?
A. 6 feet
B. 10 feet
C. 12 feet
D. 15 feet
🟢 A. 6 feet
🔴 RATIONALE: For construction, including roofing, fall protection is required at 6 feet above a lower level
under 29 CFR 1926.501(b)(1).
Question 4
Which underlayment is required under metal roof panels in a high-wind coastal zone of Louisiana?
A. 30 lb felt only
B. Self-adhering polymer-modified bitumen membrane
C. Type 15 asphalt felt
D. Unperforated kraft paper
🟢 B. Self-adhering polymer-modified bitumen membrane
🔴 RATIONALE: LABC high-wind zones (≥110 mph) require self-adhering ice/water shield under metal panels to
prevent wind-driven rain infiltration.
, Question 5
A contract requires a “no dollar limit” (NDL) warranty. Who typically issues this?
A. Roofer’s liability insurer
B. Shingle manufacturer
C. General contractor
D. Homeowner’s bank
🟢 A. Roofer’s liability insurer
🔴 RATIONALE: NDL warranties in roofing contracts refer to additional insured endorsements from the
contractor’s CGL policy, not material warranties.
Question 6
What is the maximum allowable live load deflection for roof rafters?
A. L/120
B. L/180
C. L/240
D. L/360
🟢 C. L/240
🔴 RATIONALE: IRC Table R802.4.1 specifies L/240 for roof rafters with brittle finishes; L/180 is for flexible
finishes.
Question 7
During a reroof, you find step flashing missing at a dormer sidewall. What must you do?
