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Fabricate or alter parts at construction sites, using shears, hammers, punches, or drills.
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Lay out, measure, and mark dimensions and reference lines on material, such as roofing panels, using calculators, scribes, dividers, squares, or rulers.
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Maneuver completed roofing units into position for installation.
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Inspect individual parts, assemblies, or installations, using measuring instruments, such as calipers, scales, or micrometers.
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Fasten seams or joints together with welds, bolts, cement, rivets, solder, caulks, metal drive clips, or bonds to assemble components into products or to repair sheet metal items.
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Shape metal material over anvils, blocks, or other forms, using hand tools.
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Finish parts, using hacksaws or hand, rotary, or squaring shears.
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Transport prefabricated parts to construction sites for assembly and installation.
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Perform building commissioning activities by completing mechanical inspections of a building's water, lighting, or heating, ventilating, and air conditioning (HVAC) systems.
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Hire, train, or supervise new employees or apprentices.
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Fabricate ducts for high efficiency heating, ventilating, and air conditioning (HVAC) systems to maximize efficiency of systems.
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Trim, file, grind, deburr, buff, or smooth surfaces, seams, or joints of assembled parts, using hand tools or portable power tools.
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Select gauges or types of sheet metal or nonmetallic material, according to product specifications.
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Verify that heating, ventilating, and air conditioning (HVAC) systems are designed, installed, and calibrated in accordance with green certification standards, such as those of Leadership in Energy and Environmental Design (LEED).
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Fasten roof panel edges or machine-made moldings to structures by nailing or welding.
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Maintain equipment, making repairs or modifications when necessary.
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Convert blueprints into shop drawings to be followed in the construction or assembly of sheet metal products.
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Determine project requirements, such as scope, assembly sequences, or required methods or materials, using blueprints, drawings, or written or verbal instructions.
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Install assemblies, such as flashing, pipes, tubes, heating and air conditioning ducts, furnace casings, rain gutters, or downspouts in supportive frameworks.