How Do I Get My Contractors License | C-43 Sheet Metal Contractor

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C43 – Sheet Metal Contractor

A sheet metal contractor selects, cuts, shapes, fabricates and installs sheet metal such as cornices, flashings, gutters, leaders, pans, kitchen equipment, duct work (including insulation, patented chimneys, metal flues, metal roofing systems and any other installations requiring sheet metal).

The Sheet Metal (C-43) Examination is divided into eight major sections. These sections are:

1. Job Evaluation and Estimation (25%)

Scope of work
Project measurements and calculations
Flashing and gutters
Duct work
Metal roofing materials
Louvers and screens

2. Sheet Metal Fabrication (20%)

Pattern development
Shop fabrication techniques
Fastening methods
Sealing and waterproofing

3. Metal Flashing Installation (10%)

Roof flashings
Wall and deck flashings
Louvers, vents, and screens

4. Rain Gutter and Downspout Installation (9%)

Drainage design
Cutting and fastening
Testing procedures

5. Duct Work Installation (14%)

Duct layout
Hanging and assembly methods
Insulation methods
Environmental exhaust systems
Grills and finish

6. Metal Roofing and Siding Installation (7%)

Metal roof and siding panels layout
Fastening methods
Underlayment and vapor barrier
Material protection

7. Commercial and Industrial Installations (5%)

Exhaust hoods
Sinks, countertops, and shelving
Column covers and corner guards
Metal decking

8. Shop and Job Site Safety (10%)

Fall protection
Equipment operation
Handling of hazardous materials

*Percentages are approximate*

Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. Which of the following materials is recommended to break contact between dissimilar metals in order to prevent electrolysis?

a. Copper striping

b. Rosin paper

c. Gypsum board

d. Waterproof felt

2. How much space should be provided between the bottom of the downspout and the bottom of the splash pan?

a. 1/2”

b. 1”

c. 2”

d. 3”

3. For a duct system serving a Type I kitchen hood, what is the minimum slope toward the hood or grease reservoir?

a. 1/4” per foot

b. 3/8” per foot

c. 1/2” per foot

d. 3/4” per foot

*All questions are written and reviewed by licensed contractors who are actively working in the field*

Resources

Architectural Sheet Metal.

SMACNA
(Sheet Metal and Air Conditioning Contractors’ National Association),
4201 Lafayette Center Drive,
Chantilly, VA. 20151-1209.
(703) 803-2989
FAX: (703) 803-3732.
INTERNET: www.smacna.org

HVAC Duct Construction – Metal and Flexible.

SMACNA
(Sheet Metal and Air Conditioning Contractors’ National Association),
4201 Lafayette Center Drive,
Chantilly, VA. 20151-1209.
(703) 803-2989
FAX: (703) 803-3732.
INTERNET: www.smacna.org

California Mechanical Code.

California Code of Regulations, Title 24, Part 4.
International Code Council (ICC),
5360 Workman Mill Road,
Whittier, CA 90601.
(800) 423-6587
FAX: (562) 692-3853.
INTERNET: www.intlcode.com

Cal/OSHA State of California Construction Safety Orders.

California Code of Regulations, Title 8,
Industrial Relations, Chapter 4, Subchapter 4.
Barclays Law Publishers,
P.O. Box 95767,
Chicago, IL 60694.
(800) 888-3600.
FAX: (415) 732-8875.

Building News, Inc.
1612 S. Clementine Street,
Anaheim, CA 92802.
(800) 873-6397
FAX: (714) 535-8078.
INTERNET: ccr.oal.ca.gov or www.bnibooks.com