About this C-39 — Roofing prep
This prep is built specifically for the C-39 — Roofing examination and includes a 18,000+-word study guide written for this exam, 5 full-length practice exams and 502 practice questions, each with a written explanation.
The C-39 Roofing trade examination is administered by CSLB / PSI. Closed book. 100 Q / 210 min. Pass % not published. Mix on/after 1/1/2023: Planning 22, Prep 13, Low-Slope 17, Steep-Slope 26, Safety 22. C39StudyGuide.pdf. Not Law 115/73.. This prep is written to that board’s current scope, not to a generic national syllabus.
The real C-39 — Roofing exam contains 100 questions. Our practice exams mirror that structure so the format is familiar before you sit it.
Topics covered
- How this guide works
- Planning and Estimating — 22% of the exam
- Key Code Sections the Exam Tests
- Job Site Preparation for Roof Projects — 13% of the exam
- Quick Reference: Key Numbers for the C-39 Exam
- Low-Slope Roof Projects — 17% of the exam
- Steep-Slope Roof Projects — 26% of the exam
- Safety — 22% of the exam
- Roof Access, Flashing, Fall Protection and Field Values
- How C-39 — Roofing is actually scored
- California — who writes C-39 — Roofing
- Contractor method on C-39 — Roofing
- Clock discipline for C-39 — Roofing
- C-39 sitting recap \u2014 C39StudyGuide.pdf on/after January 1, 2023
- Code reference and general knowledge
- Exam-Day Tips
- Reroofing, Roof Drainage, Sheathing and Estimating
How access works
You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Access starts when you enrol and works on any device for that term.
Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.
What is actually on the C-39 exam
CSLB divides the Roofing (C-39) examination into five sections. These weightings are the Board’s own, taken from the study guide it publishes for this classification — they are not our estimate:
| Section | Share of exam |
|---|---|
| Planning and Estimating | 22% |
| Job Site Preparation for Roof Projects | 13% |
| Low-Slope Roof Projects | 17% |
| Steep-Slope Roof Projects | 26% |
| Safety | 22% |
The C-39 examination is closed book — no reference materials may be used during the test. Questions are multiple choice with four options, and there is no penalty for guessing, so leave nothing blank.
This is only half of what you sit. Every applicant also passes the separate Law and Business examination, which is not part of the C-39 paper and is weighted on its own outline. Budget preparation time for both.
Source: CSLB Roofing (C-39) examination study guide. Contractor Pathway is an independent exam-preparation provider and is not affiliated with or endorsed by CSLB.