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CA C-17 — Glazing Exam

C-17 License

CA · CSLB Exam

Updated 2025
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What's covered - 5 topics per exam

115 questions and answers per exam set - Exactly like your real CSLB contractor exam.

  • Planning and Estimating
    27%
  • Fabrication and Installation of Framing Systems
    21%
  • Fabrication and Installation of Glazing Materials
    18%
  • Glazing Replacement and Retrofit Projects
    15%
  • Safety
    19%

See how you learn

Glazing Replacement and Retrofit Projects

Question 1
Which requirement must be met before replacing existing 1/4 in single-pane glass with a 1 in insulating glass unit (IGU) to account for the weight change?
Active Guidance

A 1 in IGU weighs approximately 6.5 psf, which is double the weight of 1/4 in glass (~3.3 psf); the existing frame and horizontal mullions must be verified for structural capacity before installation to prevent deflection or failure. The cue 'prior to' identifies the necessary sequence.

Common Questions

Is this updated for 2025?

Yes. All questions, code references, and study materials were last given a major update for the 2025 CSLB standards.

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