Sheet metal workers make, install, and maintain air-conditioning, heating, ventilation, and pollution control duct systems; roofs; siding; rain gutters; downspouts; skylights; restaurant equipment; outdoor signs; and many other products made with metal sheets. They also may work with fiberglass and plastic materials. Although some workers specialize in fabrication, installation or maintenance, most do all three jobs.
Sheet metal workers who fabricate sheet metal products work in shops that are well-lighted and well-ventilated. However, they stand for long periods and lift heavy materials and finished pieces. Those performing installation work do considerable bending, lifting, standing, climbing, and squatting, sometimes in close quarters or in awkward positions. Although duct systems and kitchen equipment are installed indoors, the installation of siding, roofs, and gutters involves much outdoor work, requiring sheet metal workers to work in various kinds of weather.
5 year training program
9,000 hours on-the-job training
450 hours paid related instruction (hours of paid and unpaid related instruction may be less than 730 hours)
Apprentices must complete Red Cross First Aid Safety Course
Apprentices must in their final year complete the Transition-To-Trainer Course
Classes include drafting, plan and specification reading, trigonometry and geometry applicable to layout work, the use of computerized equipment, welding, and the principles of heating, air-conditioning and ventilating systems.
You can find more information on the Department of Workforce Development of Wisconsin web page.