Nevada Roofing Contractor (C-15A) Exam Book Package

Prepare for the Nevada Roofing Contractor (C-15A) examination with a comprehensive exam book package covering roofing codes, steep-slope systems, metal and spray polyurethane foam roofing, membrane roofing, construction safety, estimating, photovoltaic roof applications, and carpentry fundamentals. This package combines the International Building Code, 2018, which is allowed into the open-book trade examination, with the technical study references used to prepare for the major subjects tested on the Nevada C-15A Roofing Contractor exam.

The Nevada C-15A Roofing examination is an open-book test. The International Building Code, 2018 is the exam-room-approved reference included in this package. The remaining roofing, safety, estimating, photovoltaic, and carpentry references are study materials and are not allowed into the trade examination room.

The C-15A trade examination contains 50 questions, allows 2 hours for completion, and requires 38 correct answers to pass. Examination subjects include Safety, Roofing Substrates, Steep Roofing, Roofing Repairs, Elastomeric Roofing, Built-up Bituminous Roofing, Sheet Metal and Flashing, and Photovoltaic Systems.

The Nevada C-15A Roofing classification covers the installation, application, alteration, and repair of watertight and weatherproof roofing materials. Roofing materials within the classification can include asphalt, pitch, tar, felt, flax, shakes, shingles, aluminum, tile, slate, urethane, and photovoltaic roof tiles intended to serve in place of other roofing materials.

Roofing contractors need more than familiarity with one roof covering. Exam preparation should include substrate conditions, steep-slope applications, low-slope and membrane systems, flashing, repairs, safety, estimating, and the relationship between roofing assemblies and building-code requirements. Candidates should also understand the limits of the classification when photovoltaic roofing products are involved.

This Nevada C-15A Exam Book Package brings those subjects together in one study set so candidates can organize preparation around the actual roofing knowledge areas represented on the examination.

What You Get

• International Building Code, 2018 — the exam-room-approved code reference for the Nevada C-15A trade examination.
• NRCA Roofing Manual: Steep Slope Roof Systems, 2025 — study reference for steep-slope roofing systems, materials, components, and installation practices.
• NRCA Roofing Manual: Metal Panel and SPF Roof Systems, 2024 — study reference covering metal panel roofing and spray polyurethane foam roofing systems.
• NRCA Roofing Manual: Membrane Roofing Systems, 2019 — study reference supporting membrane and low-slope roofing preparation.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA) — study reference supporting construction and roofing safety preparation.
• Roofing Construction and Estimating, Daniel Atcheson, 1995 — study reference supporting roofing methods, measurements, estimating, materials, and construction practices.
• Guidelines for Roof-Mounted Photovoltaic System Installations, 2009 — study reference supporting preparation involving photovoltaic systems installed in connection with roofing work.
• Carpentry and Building Construction, 2010 (Student Edition) — study reference supporting roof framing, substrates, sheathing, structural concepts, and general building construction.

Exam Details

The Nevada C-15A Roofing Contractor examination contains 50 questions. Candidates have 2 hours to complete the examination and must answer 38 questions correctly to pass.

The examination content is divided into the following subject areas:

• Safety: 5 questions
• Roofing Substrates: 7 questions
• Steep Roofing: 17 questions
• Roofing Repairs: 4 questions
• Elastomeric Roofing: 6 questions
• Built-up Bituminous Roofing: 7 questions
• Sheet Metal and Flashing: 2 questions
• Photovoltaic Systems: 2 questions

Steep Roofing is the largest category with 17 questions. Candidates should devote substantial preparation time to steep-slope roof coverings, underlayments, roof decks, flashing, drainage relationships, installation practices, fastening, materials, and repair considerations.

Roofing Substrates and Built-up Bituminous Roofing each account for 7 questions. Elastomeric Roofing accounts for 6 questions, while Safety accounts for 5. Roofing Repairs contributes 4 questions, and Sheet Metal and Flashing and Photovoltaic Systems each contribute 2.

The exam therefore requires broad roofing knowledge. Candidates should prepare for both steep- and low-slope concepts instead of concentrating only on the roofing systems they work with most often in the field.

Open Book Test

The Nevada C-15A Roofing Contractor examination is an open-book test.

The reference included in this package that is allowed into the trade examination is:

• International Building Code, 2018

The following references are included for study but are not allowed into the C-15A trade examination room:

• NRCA Roofing Manual: Steep Slope Roof Systems, 2025
• NRCA Roofing Manual: Metal Panel and SPF Roof Systems, 2024
• NRCA Roofing Manual: Membrane Roofing Systems, 2019
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
• Roofing Construction and Estimating, Daniel Atcheson, 1995
• Guidelines for Roof-Mounted Photovoltaic System Installations, 2009
• Carpentry and Building Construction, 2010 (Student Edition)

Because only the International Building Code is available from this package during the trade examination, candidates should use the study-only books to build roofing knowledge that can be recalled independently.

Use the IBC throughout preparation to practice locating roofing-related provisions, definitions, tables, construction requirements, and other applicable code information. With 50 questions in two hours, efficient navigation can help preserve time for questions requiring technical reasoning or calculations.

Licensing Steps

1. Confirm the C-15A classification. Make sure the Roofing subclassification matches the work the business intends to perform.
2. Identify the qualifying individual. Nevada contractor applicants must have a qualifying individual with the experience and skills needed for the classification.
3. Document qualifying experience. The qualifying individual generally must have at least four full years of applicable experience at the journeyman, foreman, supervisor, or contractor level within the fifteen years immediately preceding the application.
4. Submit the contractor license application. Complete the applicable Nevada contractor application and required supporting materials.
5. Receive examination eligibility. Examination eligibility is determined as part of the contractor licensing process.
6. Prepare for the C-15A trade examination. Study roofing systems, substrates, repairs, safety, flashing, photovoltaic roofing concepts, and code requirements.
7. Practice IBC navigation. Work regularly with the International Building Code, 2018 before taking the open-book exam.
8. Prepare for Nevada business and law requirements. Contractor licensing also involves applicable business and management examination requirements.
9. Complete the required examinations. Take the applicable trade and business examinations.
10. Complete remaining licensing requirements. Finish the applicable licensing requirements before the contractor license is issued.

State Requirements

Nevada identifies C-15A Roofing as a subclassification within Classification C-15 Roofing and Siding.

The C-15A classification authorizes the installation, application, alteration, and repair of watertight and weatherproof material used on roofs. Roofing materials can include asphalt, pitch, tar, felt, flax, shakes, shingles, aluminum, tile, slate, urethane, and photovoltaic roof tiles intended to serve in place of other existing roofing materials.

The classification does not authorize the installation of siding or devices used for the internal control of the effects of weather. It also does not authorize a C-15A contractor to install conduits, inverters, batteries, or electrical connections associated with photovoltaic systems.

This distinction is important when studying the photovoltaic portion of the examination. Roofing contractors may encounter photovoltaic roof products within the roofing scope, but electrical installation work requires the appropriate electrical authorization.

The C-15A trade examination is one component of Nevada contractor licensing. Applicants must also satisfy the applicable experience, qualification, application, business, financial, and other licensing requirements associated with obtaining a Nevada contractor license.

Reference Books

• International Building Code, 2018
  This exam-room-approved reference supports preparation involving building-code requirements related to roofing assemblies, roof coverings, construction, materials, fire classification, rooftop conditions, and other applicable building requirements.
• NRCA Roofing Manual: Steep Slope Roof Systems, 2025
  This study-only reference supports steep-slope roof preparation involving roof coverings, components, materials, design considerations, application practices, flashing, and system performance.
• NRCA Roofing Manual: Metal Panel and SPF Roof Systems, 2024
  This study-only reference supports preparation involving metal panel roofing systems and spray polyurethane foam roofing systems, including components, application concepts, and roofing practices.
• NRCA Roofing Manual: Membrane Roofing Systems, 2019
  This study-only reference supports membrane and low-slope roofing preparation, including roof systems, materials, components, installation considerations, maintenance, and repair concepts.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This study-only reference supports preparation involving construction safety, fall hazards, ladders, scaffolds, personal protective equipment, tools, material handling, and other roofing jobsite safety topics.
• Roofing Construction and Estimating, Daniel Atcheson, 1995
  This study-only reference supports roofing construction methods, measurements, quantities, materials, estimating, roof geometry, and practical roofing knowledge.
• Guidelines for Roof-Mounted Photovoltaic System Installations, 2009
  This study-only reference supports preparation involving the interaction between roof systems and roof-mounted photovoltaic installations, including roofing considerations associated with photovoltaic components.
• Carpentry and Building Construction, 2010 (Student Edition)
  This study-only reference supports preparation involving roof framing, structural components, sheathing, substrates, carpentry terminology, and general building construction principles relevant to roofing.

Exam Room Approved Books

• International Building Code, 2018
  This is the exam-room-approved reference included in the Nevada C-15A Roofing Contractor Exam Book Package. Candidates should become familiar with the book's organization and roofing-related provisions before test day.

Test Information and Study Materials

A strong Nevada C-15A preparation plan should begin with Steep Roofing because it represents 17 of the 50 scored questions. Study roof coverings, underlayments, fastening, flashing relationships, roof deck conditions, drainage, slopes, installation practices, and common steep-slope repair issues.

Roofing Substrates should include deck and sheathing conditions, structural support, surface preparation, attachment, compatibility, deterioration, and how substrate conditions affect the performance of the finished roof system.

Built-up Bituminous Roofing preparation should include components, membranes, bituminous materials, surfacing, flashing, application concepts, repair, and basic system construction.

Elastomeric Roofing should also receive substantial attention. Review membrane systems, seams, flashing, penetrations, attachment concepts, roof edges, drainage, and repair considerations.

Roofing Repairs should be approached as a diagnostic subject. Candidates should understand how to identify damaged materials, locate potential leak sources, recognize failed flashing or membrane conditions, and select appropriate repair approaches.

Sheet Metal and Flashing represents a smaller category, but flashing is fundamental to watertight roofing. Review valleys, roof-to-wall intersections, penetrations, edges, curbs, transitions, and other locations where water must be directed away from vulnerable areas.

Photovoltaic Systems accounts for 2 questions. Study roofing considerations associated with photovoltaic components and understand the boundary between roofing work and electrical work within the C-15A classification.

Safety accounts for 5 questions and is especially important in roofing because much of the work occurs at elevation. Study fall protection, ladders, scaffolds, personal protective equipment, material handling, tools, access, and common construction hazards.

The International Building Code, 2018 should be used regularly during study. Practice locating roofing provisions through the table of contents and index, then follow the applicable sections, subsections, tables, and exceptions.

Use the NRCA manuals to develop a broader understanding of how different roofing systems are constructed. Compare steep-slope, metal, SPF, and membrane systems so differences in materials and application methods become easier to recognize.

Roofing Construction and Estimating can be used to strengthen measurement and estimating skills. Candidates should be comfortable interpreting roof dimensions, calculating quantities, recognizing roof geometry, and relating measurements to material requirements.

The carpentry reference can reinforce knowledge of roof framing and substrates. Roofing questions may require an understanding of what lies beneath the finished roof covering, including sheathing and structural components.

Because most references in this package are not allowed into the examination room, gradually shift study from book-supported learning to recall. Read a subject, close the reference, and work practice questions without looking up every answer.

For the International Building Code, use a different approach: practice timed navigation. Identify the subject, locate the appropriate code provision, read the complete requirement, and return to the question.

Mixed practice should be added near the end of preparation. The exam can move quickly from steep roofing to safety, substrates, membrane systems, repairs, flashing, or photovoltaic topics. Candidates should become comfortable changing subjects without losing their pacing.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Nevada C-15A Roofing Contractor candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation when applicable, and confidence-building study structure.

This exam book package brings together the code and roofing references needed to study the major C-15A examination subjects. Candidates can work through steep-slope roofing, membrane systems, metal and SPF roofing, substrates, safety, estimating, repairs, flashing, photovoltaic applications, and building-code requirements in an organized way.

Reference-navigation practice is especially important for the International Building Code, 2018 because it is the reference available during the open-book trade examination. Regular use can help candidates become more comfortable with the index, chapter structure, tables, and roofing provisions.

The study-only references provide technical depth that supports retained knowledge. Instead of relying entirely on open-book searching, candidates can build stronger understanding of roofing materials, installation practices, safety, estimating, system components, and repair concepts.

Practice-oriented preparation can help reveal whether a missed question comes from weak steep-slope knowledge, difficulty with membrane systems, poor estimating skills, slow code navigation, safety gaps, or confusion about substrates and flashing.

The goal is to help candidates approach the Nevada C-15A Roofing Contractor examination with stronger roofing knowledge, more efficient code navigation, improved understanding of multiple roof systems, and a consistent study structure without guaranteeing a passing score or licensing approval.

How many questions are on the Nevada C-15A Roofing exam?

The Nevada C-15A Roofing Contractor examination contains 50 questions.

How much time is allowed for the C-15A exam?

Candidates are allowed 2 hours to complete the examination.

How many correct answers are required to pass?

Candidates must answer 38 questions correctly to pass the Nevada C-15A Roofing examination.

Is the Nevada C-15A Roofing exam open book?

Yes. The Nevada C-15A Roofing Contractor examination is an open-book test.

Which book is allowed into the Nevada C-15A exam?

The International Building Code, 2018 is the exam-room-approved reference included in this package.

Are the NRCA Roofing Manuals allowed into the exam?

No. The NRCA Roofing Manual references included in this package are study materials and are not allowed into the C-15A trade examination.

Is OSHA 29 CFR Part 1926 allowed into the exam?

No. OSHA 29 CFR Part 1926 is included for safety study but is not allowed into the C-15A trade examination.

What is the largest C-15A exam category?

Steep Roofing is the largest category with 17 questions.

Does the C-15A exam cover built-up roofing?

Yes. Built-up Bituminous Roofing accounts for 7 questions.

Does the exam include photovoltaic systems?

Yes. Photovoltaic Systems accounts for 2 questions.

Can a Nevada C-15A contractor perform photovoltaic electrical work?

The C-15A scope can include photovoltaic roof tiles intended to serve as roofing material, but it does not authorize the installation of conduits, inverters, batteries, or electrical connections.

Does the exam include roofing safety?

Yes. Safety accounts for 5 questions, making fall protection, access, equipment, and other construction safety topics important areas of preparation.

Why is Carpentry and Building Construction included?

Roofing work depends on the structure and substrate beneath the roof covering. The carpentry reference supports preparation involving roof framing, sheathing, structural components, and general building construction concepts.

Why is Roofing Construction and Estimating included?

The reference supports roofing measurements, quantities, estimating, roof geometry, materials, construction practices, and practical trade knowledge useful for exam preparation.

Should I practice using the International Building Code before the exam?

Yes. Candidates should practice finding roofing-related provisions, definitions, tables, and applicable code sections under timed conditions before taking the open-book examination.

Does this package guarantee that I will pass the Nevada C-15A exam?

No. This package provides code and technical references designed to support organized preparation. Examination results depend on each candidate's experience, roofing knowledge, study, reference-navigation skills, and performance on test day.