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Master Every Tested Subject. Pass the First Time.
California contractor exams are closed book, so the only thing walking into that testing center with you is what you’ve learned. Our California courses are built from the ground up for that reality — organized subject by subject around the official CSLB test plan, so every minute you study is aimed at what’s actually on the exam.
Prepare for your California Roofing (C-39) Contractor License with 1 Exam Prep's Roofing Contractor Licensing Exam Prep Online Course. Designed for experienced roofing professionals pursuing California contractor licensing, this online course combines organized technical instruction, focused reading materials, examination-style practice questions, and comprehensive final examinations.
Roofing contractors need specialized knowledge of roof systems, installation procedures, waterproofing, flashing, ventilation, underlayment, roof repairs, project estimating, and fall protection. The California C-39 examination evaluates these skills across both low-slope and steep-slope roofing applications.
Whether your experience involves residential shingle roofing, commercial membrane systems, metal panels, roof tile, or reroofing projects, our course helps you organize your knowledge and prepare for the closed-book examination administered through the California Contractors State License Board (CSLB).
Every tested subject gets the same four layers, in the order that makes the material stick:
Each layer reinforces the previous lesson. Students begin by learning roofing concepts through focused instruction, strengthen their understanding with reading chapters, review essential information using cram sheets, and apply what they have learned through examination-style questions.
This method helps organize roofing calculations, material selection, installation procedures, roof system components, repair techniques, and safety regulations into manageable study sessions.
Once you’ve worked through every subject, the final phase pulls it all together:
Learn it. Reinforce it. Condense it. Test it. Then prove it on a full-length final — a structured preparation process designed to help students strengthen knowledge retention and prepare confidently for their first examination attempt.
Repeated practice helps identify challenging subjects and reinforces the relationships between roof system design, installation, repairs, estimating, and safety.
The California Roofing (C-39) Contractor Examination evaluates technical knowledge of roofing project planning, job site preparation, low-slope roofing, steep-slope roofing, and safety.
The official CSLB C-39 examination study guide for examinations scheduled on or after January 1, 2023, identifies five major examination categories:
These percentages represent approximate examination content distribution. Steep-Slope Roof Projects is the largest category at 26%, while Planning and Estimating and Safety each represent approximately 22%.
The examination uses multiple-choice questions with four possible answers and one best answer. Some questions involve mathematical calculations, and a calculator is provided during testing. There is no penalty for guessing.
Our California C-39 Roofing Exam Prep Online Course organizes instruction around these official categories to help students prioritize the technical subjects relevant to examination day.
The California Roofing (C-39) Contractor Examination is closed book. Candidates cannot use roofing manuals, building codes, reference books, notes, or other study materials during testing.
Because reference materials are not permitted, preparation should emphasize understanding roofing systems, remembering proper installation procedures, recognizing suitable materials, performing estimating calculations, and applying safety principles independently.
Students should understand how flashing, underlayment, ventilation, waterproofing, and roof coverings work together to protect a building.
Our four-layer study method reinforces these subjects through videos, reading chapters, cram sheets, and practice questions. Full-length final examinations help students evaluate their understanding without consulting outside references.
California roofing contractors must obtain the appropriate C-39 specialty contractor license through the Contractors State License Board.
This product includes California C-39 Roofing Trade Exam preparation only. California Law and Business Exam preparation, Application Service, state licensing fees, business setup, and contractor bond services are not included.
The California Contractors State License Board regulates roofing contractors under the C-39 specialty contractor classification.
California Code of Regulations, Title 16, Section 832.39 describes roofing contractors as professionals who install roofing products and repair surfaces that seal, waterproof, and weatherproof structures.
The classification includes qualifying work involving asphalt, felt, roof membranes, metal roofing systems, wood shakes, shingles, tile, slate, urethane foam, and other roofing or waterproofing materials.
Applicants must satisfy applicable CSLB experience, application, examination, and license issuance requirements. Licensed roofing contractors must also comply with relevant building codes, energy requirements, construction safety regulations, and applicable insurance obligations.
Roofing work frequently involves elevated surfaces, ladders, scaffolding, fall hazards, material handling, and exposure to weather conditions. Understanding safe roofing procedures is essential for both professional work and examination preparation.
The C-39 roofing course is based on the following reference books (not included).
Reference books are not included with this online course. The course provides structured examination preparation around the relevant roofing trade subjects and official CSLB examination outline.
Effective C-39 examination preparation involves understanding roofing project planning, material estimating, roof preparation, system installation, repairs, and safety.
Planning and Estimating: Review roof measurements, slope calculations, material quantities, project specifications, labor estimates, and equipment requirements.
Job Site Preparation: Study protection of surrounding property, roof inspections, correction of existing problems, and removal of roofing materials.
Low-Slope Roofing: Understand roof membranes, insulation, flashing, ventilation, underlayment, installation methods, and repairs.
Steep-Slope Roofing: Review shingles, roof tile, metal systems, flashing, underlayment, ventilation, and repair procedures.
Safety: Focus on fall protection, personal protective equipment, ladders, scaffolding, and job site hazards.
Instructor-led videos introduce these subjects, reading chapters reinforce technical information, and cram sheets summarize essential facts and procedures.
Practice questions help students apply roofing knowledge, while full-length final examinations provide comprehensive review across the five official examination categories.
Successful roofing projects begin with evaluating roof conditions, reviewing construction plans, choosing appropriate materials, and calculating project requirements.
Roofing contractors must understand roof dimensions, slope, material quantities, waste allowances, equipment requirements, and labor considerations.
Estimating also involves identifying the roofing system specified for a project and understanding how different roof assemblies affect materials and installation methods.
Job site conditions can influence access, equipment selection, work sequencing, and the protection of surrounding property.
Planning and Estimating represents approximately 22% of the C-39 examination. Our course reinforces these important concepts through focused instruction and examination-style practice.
Before installing a new roof, contractors must understand how to evaluate existing conditions and prepare the work area.
Job site preparation can involve protecting landscaping, windows, walls, adjacent surfaces, and other areas exposed to roofing work.
Roof tear-off requires understanding removal methods, material handling, surface inspections, and the identification of problems that must be corrected before installation.
Reroofing projects also require careful consideration of existing roofing conditions, compatibility of materials, and applicable construction requirements.
Proper preparation supports safe installation and helps prevent defects caused by unsuitable roof surfaces.
Our C-39 course reinforces these subjects with practical explanations and examination-style questions.
Low-slope roofing systems use specialized assemblies intended to resist moisture penetration and protect buildings from weather exposure.
Contractors must understand roof membrane materials, installation techniques, flashing, drainage considerations, ventilation, and underlayment.
Low-slope applications may involve different membrane roofing products, roof insulation, metal flashing, and associated protective components.
Roof system performance depends on how individual materials interact, particularly at penetrations, transitions, edges, and drainage locations.
Repairing existing low-slope roofs requires identifying the problem area and understanding appropriate repair principles for the roofing system involved.
The examination assigns approximately 17% of its content to Low-Slope Roof Projects. Our study materials reinforce this category through technical lessons and practice questions.
Steep-Slope Roof Projects represent the largest C-39 examination category at approximately 26%.
Steep-slope roofing includes systems such as asphalt shingles, concrete and clay tile, wood shakes, slate, and appropriate metal roof coverings.
Contractors must understand roof preparation, underlayment, fastening, flashing, ventilation, and installation considerations for different materials.
Roof edges, valleys, penetrations, and transitions are especially important because these locations require effective water management and weather protection.
Repair work involves recognizing damaged materials, evaluating existing conditions, and understanding suitable procedures for restoring roof protection.
Our C-39 course helps students review steep-slope roofing principles systematically and apply their knowledge through examination-style questions.
Roofing work presents important hazards involving elevated surfaces, ladders, scaffolding, equipment, material handling, and changing weather conditions.
Fall protection is a major safety responsibility. Contractors must understand appropriate protective systems, safe access methods, and procedures for working around roof edges and openings.
Safe material handling, personal protective equipment, and appropriate job site organization also contribute to worker protection.
Electrical hazards may be present around overhead lines, powered equipment, and building installations.
Safety accounts for approximately 22% of the California C-39 examination. Our course emphasizes personnel safety, job site precautions, and fall protection through focused lessons and practice-oriented preparation.
At 1 Exam Prep, we understand that preparing for the California Roofing Contractor Examination involves more than memorizing roofing terminology.
Students need to understand roof systems, materials, estimating calculations, preparation procedures, installation techniques, repair methods, and safety requirements.
Our online course divides these subjects into focused lessons organized around the official CSLB C-39 examination outline.
Instructor-led videos explain important roofing concepts and procedures. Reading chapters reinforce understanding, while cram sheets condense key information into convenient review materials.
Practice questions with detailed explanations help students apply knowledge, recognize correct responses, and identify subjects needing additional study.
Master cram sheets and full-length final examinations provide opportunities to evaluate preparation across all five examination categories.
Because the California C-39 examination is closed book, our study approach emphasizes comprehension, retention, and independent problem-solving.
Strengthen your roofing knowledge, build consistent study habits, and prepare for your California C-39 Contractor Examination with 1 Exam Prep.
The California C-39 license is a CSLB specialty contractor classification covering qualifying roofing installations and repairs involving surfaces and materials used to seal, waterproof, and weatherproof structures.
Yes. The California C-39 Roofing Contractor Examination is closed book. Candidates cannot use roofing manuals, building codes, notes, or other reference materials during testing.
No. The ten listed roofing reference books are not included. The online course provides structured preparation for the examination subjects.
The examination covers Planning and Estimating, Job Site Preparation for Roof Projects, Low-Slope Roof Projects, Steep-Slope Roof Projects, and Safety.
Steep-Slope Roof Projects accounts for approximately 26% of the examination, followed by Planning and Estimating and Safety at 22% each.
Yes. Planning and Estimating includes roofing calculations involving project measurements and material requirements. A calculator is provided during testing.
Yes. Low-Slope Roof Projects include flashing, ventilation, underlayment, low-slope roofing installation, and repairs.
Yes. Steep-Slope Roof Projects include roof system installation, flashing, ventilation, underlayment, and repair procedures relevant to steep-slope roofing.
Yes. Job Site Preparation includes protecting surrounding areas, correcting existing problems, and tearing off existing roofing materials.
Yes. Personnel safety, job site safety, and fall protection are official C-39 examination subjects.
No. This product focuses on the California C-39 Roofing Trade Examination. California Law and Business preparation is available separately through Business and Trade examination preparation packages.
No. Application Service, state licensing fees, business setup, insurance, and contractor bond services are not included with this trade-only online course.
Each subject includes an instructor-led video, reading chapter, cram sheet, and practice questions with detailed answer explanations. Master cram sheets and full-length final examinations provide comprehensive review.
This course is designed for experienced roofers, roofing installers, repair specialists, roofing supervisors, and individuals preparing for the California C-39 specialty contractor trade examination.
No. Course completion does not grant a contractor license. Applicants must satisfy applicable CSLB experience, application, examination, bonding, insurance, and license issuance requirements.
1 Exam Prep combines organized roofing trade instruction, focused reading chapters, targeted cram sheets, examination-style practice questions, and comprehensive final examinations. The four-layer method supports technical understanding and consistent closed-book examination preparation.
Start preparing for your California Roofing (C-39) Contractor License Examination with 1 Exam Prep. Master the tested roofing subjects, strengthen your trade knowledge, and approach examination day with confidence.
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