Nevada Roofing and Siding Contractor (C-15) Exam - Online Exam Prep

Prepare for the Nevada Roofing and Siding Contractor C-15 examination with an online exam prep course focused on the technical knowledge, code navigation, roofing systems, siding practices, safety requirements, and reference materials associated with the Nevada trade exam. This course is designed for candidates pursuing the C-15 Roofing and Siding classification through the Nevada State Contractors Board and who want a structured way to organize their study before taking the PSI examination.

The Nevada C-15 classification covers a broad range of roofing and siding work. It includes the installation, application, alteration, and repair of watertight and weatherproof roofing materials as well as siding used to make exterior walls watertight and weatherproof. The classification also encompasses insulation and waterproofing work within the scope established by Nevada contractor regulations.

Because the C-15 examination covers both roofing and siding, candidates need more than basic familiarity with one roofing system. Preparation should address steep roofing, roofing substrates, repairs, elastomeric roofing, built-up bituminous roofing, siding, sheet metal and flashing, photovoltaic systems, and construction safety. The exam also draws from general trade knowledge and recognized industry references.

The Nevada Roofing and Siding Contractor online exam prep course is built around the references associated with the examination, including the International Building Code, NRCA roofing manuals, OSHA construction safety regulations, siding installation standards, roofing estimating material, carpentry references, and photovoltaic roofing guidance. Candidates can use these resources to strengthen technical knowledge while learning where important information is located.

This course is especially useful for candidates who want a more organized study process. Rather than reviewing roofing and siding topics randomly, candidates can focus their preparation around the official examination content areas and the technical references used to support those subjects.

Exam Details

The Nevada C-15 Roofing and Siding Contractor examination is administered through PSI as part of the Nevada State Contractors Board licensing process. A contractor applicant must first submit the required license application and receive examination eligibility before scheduling the trade examination.

The C-15 trade examination contains 60 questions. Candidates must answer at least 45 questions correctly to achieve the published minimum passing score. The examination allows 2 hours for completion.

The published Nevada C-15 examination content outline includes:

• Safety: 5 questions.
• Roofing Substrates: 8 questions.
• Steep Roofing: 16 questions.
• Roofing Repairs: 4 questions.
• Elastomeric Roofing: 7 questions.
• Built-up Bituminous Roofing: 7 questions.
• Sheet Metal and Flashing: 3 questions.
• Siding: 8 questions.
• Photovoltaic Systems: 2 questions.

Steep roofing represents the largest individual portion of the examination, accounting for 16 of the 60 questions. Roofing substrates and siding each represent eight questions, while elastomeric roofing and built-up bituminous roofing each represent seven. Safety, roofing repairs, sheet metal and flashing, and photovoltaic systems make up the remainder of the published outline.

Candidates should prepare across the complete outline. A strong study strategy gives additional attention to the larger categories while still reviewing the smaller sections because questions can come from every published subject area.

Open Book Test

The Nevada C-15 Roofing and Siding Contractor examination is an open-book test. The International Building Code, 2018 is identified as an approved reference for the C-15 examination room.

PSI requires candidates to bring their own approved reference material to the testing center. Reference materials may be highlighted, underlined, and indexed before the examination. Written notes are not permitted in the references, and candidates may not write in or add highlighting to the books during the examination session.

Permanent tabs may be used to organize approved examination references. Temporary or removable tabs are not permitted. Loose or attached additional papers are also prohibited under PSI reference-material rules.

Open-book testing does not eliminate the need to learn the trade. The C-15 examination is based on roofing and siding knowledge, general industry practices, and technical references. Candidates should understand common systems, materials, installation methods, repair practices, safety considerations, and code concepts before test day.

Reference navigation should be practiced along with technical review. When working with the International Building Code, become familiar with the index, chapter structure, definitions, tables, roof assembly provisions, exterior wall requirements, materials, and other sections connected to roofing and siding work.

Licensing Steps

The Nevada State Contractors Board licenses businesses and individuals that perform contracting work within the state. Candidates pursuing the C-15 classification must satisfy the licensing requirements applicable to the business and the qualifying individual.

1. Select the C-15 Roofing and Siding classification. Applicants seeking authority to perform work within the complete Nevada roofing and siding specialty apply for the C-15 classification.
2. Identify the qualifying individual. Nevada requires the applicant to identify a person who has the necessary experience, knowledge, and skills to qualify the business in the requested classification.
3. Document qualifying trade experience. The trade qualified individual must generally demonstrate at least four full years of applicable experience as a journeyman, foreman, supervising employee, or contractor in the requested classification within the 15 years immediately before the application is filed.
4. Submit the contractor license application. The applicant submits the required business, qualifying individual, experience, financial, and supporting information to the Nevada State Contractors Board.
5. Receive examination eligibility. The trade examination cannot be scheduled until the application has been submitted and the Board has issued examination eligibility.
6. Complete the C-15 trade examination. The trade qualifying individual must satisfy the Roofing and Siding examination requirement unless an applicable waiver has been approved.
7. Complete the Business and Law requirement. Nevada generally requires the appropriate qualifying individual to pass the Construction Management Survey business and law examination unless a qualifying waiver applies.
8. Complete remaining licensing requirements. The applicant must satisfy the Nevada State Contractors Board's applicable financial responsibility, background, bonding, and other licensing requirements before the license can be issued.

State Requirements

The Nevada C-15 classification is the Roofing and Siding specialty classification. A contractor holding the full C-15 classification may perform work authorized within the associated roofing and siding subclassifications and related areas included in the classification scope.

The roofing portion of the classification includes installation, application, alteration, and repair of watertight and weatherproof roofing materials. Nevada regulations identify materials such as asphalt, pitch, tar, felt, shakes, shingles, aluminum, tile, slate, urethane, and qualifying photovoltaic roof tiles.

The siding portion includes installation, alteration, and repair of siding materials used to make the walls of a structure watertight and weatherproof. Materials can include wood, aluminum, enameled steel, plastic, and glass. The broader C-15 scope also includes insulation and waterproofing work within the limits established by Nevada regulations.

The trade qualified individual generally must have four years of qualifying experience in the requested classification within the 15 years immediately preceding the application. Qualifying experience may be obtained as a journeyman, foreman, supervising employee, or contractor.

Nevada does not require a specific college degree to obtain a contractor license. Accepted education or training may be used toward a portion of the experience requirement when it meets Nevada State Contractors Board standards and is properly documented.

The Nevada State Contractors Board also requires applicants to demonstrate financial responsibility. Contractor licensing can include financial statement requirements, bank verification, bonding, and other application documentation in addition to examination qualification.

Reference Books

• International Building Code, 2018
  A building code reference covering roof assemblies, exterior walls, materials, fire-resistance requirements, structural concepts, weather protection, and other building provisions. This edition is also identified as an approved reference for the Nevada C-15 examination room.
• NRCA Roofing Manual: Steep Slope Roof Systems, 2025
  A roofing industry reference focused on steep-slope roof systems. It supports review of materials, system components, installation principles, flashing, roof coverings, and other steep-roofing subjects that receive substantial emphasis on the C-15 examination.
• NRCA Roofing Manual: Metal Panel and SPF Roof Systems, 2024
  A technical roofing reference covering metal panel roofing and spray polyurethane foam roofing systems, including materials, assemblies, components, installation principles, and industry practices.
• NRCA Roofing Manual: Membrane Roofing Systems
  A technical reference addressing membrane roof systems and low-slope roofing concepts. It supports study of elastomeric and other membrane-related roofing subjects found within C-15 preparation.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  The federal construction safety regulations used to study workplace hazards, worker protection, fall protection, ladders, scaffolds, personal protective equipment, and other safety subjects relevant to roofing and siding operations.
• Standard Practice for Installation of Rigid Poly(Vinyl Chloride) (PVC) Siding and Soffit - ASTM D 4756
  An industry standard addressing installation practices for rigid PVC siding and soffit. It supports preparation for the siding portion of the C-15 examination.
• Roofing Construction and Estimating, Daniel Atcheson, 1995
  A roofing reference covering roofing materials, construction methods, estimating concepts, measurements, and practical trade information useful for reviewing roofing systems and project calculations.
• Carpentry and Building Construction, 2016
  A general construction reference covering building materials, structural components, carpentry concepts, framing, and related construction practices that can support understanding of roof substrates and building assemblies.
• NRCA Guidelines for Roof Systems with Rooftop Photovoltaic Components, 2018
  A roofing industry reference focused on the relationship between roof systems and rooftop photovoltaic components. It supports preparation for the photovoltaic portion of the Nevada C-15 examination.

Test Information and Study Materials

A strong Nevada C-15 study plan should follow the official examination weighting. Steep roofing deserves substantial attention because it accounts for 16 questions. Candidates should review steep-slope roof coverings, materials, slopes, underlayment, flashing, valleys, penetrations, installation practices, and related system components.

Roofing substrates and siding each account for eight questions. For roofing substrates, focus on the conditions and components that support roofing assemblies, including deck materials, preparation, compatibility, and how substrate conditions affect the completed system. For siding, review common siding materials, attachment methods, weather protection, installation principles, and exterior-wall considerations.

Elastomeric roofing and built-up bituminous roofing each account for seven questions. Candidates should understand basic system components, materials, installation methods, surfacing, flashing, common defects, and repair considerations. The NRCA membrane roofing material is particularly useful for developing familiarity with low-slope systems.

Safety is another dedicated examination category. Roofing and siding work frequently involves elevated work surfaces, ladders, scaffolds, material handling, fall hazards, and other construction risks. OSHA 29 CFR Part 1926 provides an important foundation for reviewing federal construction safety requirements.

Sheet metal and flashing receive three questions. Although this is a smaller portion of the examination, flashing is closely connected to roofing performance. Candidates should understand how flashings, edges, penetrations, intersections, valleys, and similar details help control water movement.

The examination also includes photovoltaic systems. Candidates should review how rooftop photovoltaic components interact with roof assemblies, including penetrations, flashing, water management, roof access, system placement, and protection of the underlying roofing system.

Use practice questions to develop a consistent exam strategy. First identify the subject of the question. Determine whether it is testing trade knowledge, a code requirement, a safety principle, a material, an installation method, or a calculation. Then select the most appropriate reference or rely on established trade knowledge as appropriate.

Timed practice is also valuable. With 60 questions in two hours, candidates should avoid spending too much time searching for a single answer. Developing a disciplined process for answering, marking difficult questions, and returning to them can improve time management during preparation.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Nevada Roofing and Siding Contractor candidates organize their preparation around the actual subject areas tested on the C-15 examination. Instead of approaching roofing, siding, safety, and code material as unrelated topics, candidates can develop a structured study routine that connects trade knowledge with the appropriate technical references.

The online exam prep format supports trade-focused review of steep roofing, roof substrates, elastomeric systems, built-up roofing, siding, repairs, flashing, photovoltaic systems, and safety. Candidates can use the course structure to identify stronger and weaker topics and devote additional study time where needed.

Reference navigation is an important part of open-book testing. 1 Exam Prep emphasizes becoming familiar with how technical books and code materials are organized so candidates can locate information more efficiently when a reference lookup is appropriate.

Practice-oriented preparation also helps candidates apply what they have studied. Exam-style questions can reinforce terminology, material knowledge, installation principles, safety concepts, and code navigation while helping candidates become accustomed to making decisions within a limited amount of time.

For a trade such as roofing and siding, preparation should balance technical understanding with the ability to recognize how different systems interact. Roof coverings depend on substrates, flashing affects water control, siding relies on proper exterior-wall preparation, and photovoltaic components can affect the performance of a roof assembly. Organized review helps connect these subjects.

No exam preparation course can guarantee a passing result or contractor license approval. The purpose of 1 Exam Prep is to provide organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and a clearer structure for working toward the Nevada C-15 examination.

FAQ Section

What is the Nevada C-15 Roofing and Siding Contractor license?

C-15 is Nevada's Roofing and Siding specialty contractor classification. It covers roofing and siding work as well as associated insulation and waterproofing activities within the scope defined by Nevada contractor regulations.

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

The Nevada C-15 Roofing and Siding Contractor examination contains 60 questions.

What score is required to pass the C-15 exam?

Candidates must answer at least 45 of the 60 questions correctly to achieve the published minimum passing score.

How much time is allowed for the C-15 examination?

Candidates receive 2 hours to complete the Nevada Roofing and Siding Contractor trade examination.

Is the Nevada C-15 exam open book?

Yes. The Nevada C-15 examination is open book. The International Building Code, 2018 is identified as an approved reference for use in the examination room.

What subjects are tested on the Nevada C-15 exam?

The published content outline covers safety, roofing substrates, steep roofing, roofing repairs, elastomeric roofing, built-up bituminous roofing, sheet metal and flashing, siding, and photovoltaic systems.

Which area has the most questions?

Steep roofing is the largest content area with 16 questions. Roofing substrates and siding each contain eight questions.

Does the exam include siding questions?

Yes. The full C-15 Roofing and Siding examination includes eight questions specifically assigned to siding.

Does the C-15 exam include photovoltaic roofing questions?

Yes. The published examination outline includes two questions on photovoltaic systems.

Can I highlight and tab my approved exam reference?

PSI permits approved references to be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted, while temporary removable tabs and handwritten notes are not allowed.

Are all of the listed study books allowed in the exam room?

No. The listed materials support exam preparation, but study references and exam-room-approved references are not the same thing. The International Building Code, 2018 is identified as the approved reference for the C-15 trade examination room.

How much experience is required for the Nevada C-15 contractor license?

The trade qualifying individual generally must demonstrate at least four full years of qualifying experience in the requested classification within the 15 years immediately before the application is filed.

Do I need to apply before scheduling the Nevada contractor exam?

Yes. The contractor application must be submitted and examination eligibility issued before the qualifying individual can schedule the required Nevada contractor examination.

Does Nevada require a business and law exam in addition to the C-15 trade exam?

Yes. Nevada generally requires the applicable qualifying individual to pass the Construction Management Survey business and law examination in addition to the trade examination unless an approved waiver applies.

Does this online exam prep course guarantee a passing score?

No. The course is designed to support organized study, trade review, reference navigation, and exam preparation, but examination results depend on the candidate's preparation and performance.