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CSLB Roofing (C-39): Study Guide and Online Practice Exam
$125.00
$225.00
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Promo pricing through September 30, 2026.
What’s included
- Learn the material: Roofing (C-39) Study Guide Book
- Pass the test: Roofing (C-39) Practice Exam
What this covers
Per the state's classification, a C-39 contractor applies all types of roofing, waterproofing, and weatherproofing materials to buildings and structures. This printed book covers the subjects the state tests. See the official CSLB C-39 classification.
Sample questions — Try our free practice test
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The slope of a built-up asphalt roof should not exceed what pitch when aggregate is applied?
A. 6/12 · B. 4/12 · ✓ C. 3/12 · D. 1/12 -
What may roofing cut corners be used on?
A. Inside corners · B. Angles · C. Outside corners · ✓ D. All of the above -
What is one of the greatest causes of roofing deterioration?
A. Wind · ✓ B. Ultraviolet rays from the sun · C. Rain · D. Air pollution
California contractors who passed
Passed. Most of the questions felt familiar because of the practice exams.
Passed my C-39. The slope and underlayment questions matched what I practiced.
Two exams in one week and I passed both. I could not have done it without the practice tests.