Jobs for sheet metal union workers include roles where you prepare and install sheet metal in a variety of industries, such as construction and HVAC. As a tradesman in the sheet metal union workers union, your responsibilities include the fabrication, installation, and repair of sheet metal, where you must use the proper tools and equipment and follow the blueprint to ensure the right design. Other duties may include marking the reference lines and dimensions on materials, laying out or developing patterns, smoothing the surface of the sheet metal, selecting the right materials for the job, excavating or moving construction materials as necessary, and creating diagrams. Other than a sheet metal worker, you may work as a sheet metal detailer, mechanic, or estimator.