SHEET METAL
Level I
Introduction to the sheet metal trade, tools of the trade, fasteners, hangers, and supports, installation of air distribution accessories, insulation, introduction to sheet metal layout and processes, trade math one, fabrication one: parallel line development.
Level II
Trade math two, basic piping practices, fabrication two: radial line development, bend allowances, blueprints and specifications, air properties and distribution, sheet metal duct fabrication standards, soldering, fiberglass duct.
Level III
Trade math three: field measuring and fitting, airside systems, introduction to welding, brazing, and cutting, principles of refrigeration, principles of air flow, comprehensive blueprint and specification reading, fabrication three: triangulation, architectural sheet metal.
Level IV
Shop production and organization, air balance, fabrication four: comprehensive review, louvers, dampers and access doors, hoods and ventilators, fume and exhaust systems design.