The Mid-Level Sheet Metal Technician is responsible for the fabrication, assembly, and installation of marine HVAC ductwork and ventilation systems. This role requires the ability to work independently on routine layout, modification, and installation tasks, ensuring compliance with marine standards and vessel design requirements.
Fabrication and Installation of Sheet Metal Ductwork for Marine Ventilation and HVAC Systems
Ensure the accurate fabrication, alignment, and installation of HVAC ducting in machinery spaces, accommodation areas, and ventilation trunks in accordance with marine drawings, ABS, and IMO guidelines.
Fabricate rectangular, round, and oval ducts using hand tools, forming machines, and shears based on project specifications.
Read and interpret blueprints, layout drawings, and HVAC schematics for routing and installation of duct systems.
Install duct sections, dampers, diffusers, and air terminal devices in accordance with layout and system requirements.
Ensure proper alignment, sealing, and fastening of duct joints using flanges, gaskets, bolts, or other joining methods.
Inspect installed ductwork for air tightness, vibration control, structural clearance, and mechanical interference.
Modify or adjust duct routes onboard to accommodate structural constraints or field conditions.
Apply fireproofing and insulation interface provisions in cooperation with HVAC and insulation teams.
Work with shipboard support structures (e.g., bulkheads, decks, ceilings) to hang and secure ductwork properly.
Maintain cleanliness and documentation during HVAC pre-commissioning and system testing phases.
Train and mentor junior technicians as needed in layout, measurement, and safety best practices.
Follow all shipyard safety protocols, confined space procedures, and PPE use requirements.
Technical certification in Sheet Metal Fabrication, HVAC Installation, or Marine Mechanical Systems.
3–5 years of experience working with sheet metal ductwork in a shipbuilding or offshore environment.
Proficient in layout, cutting, bending, and forming sheet metal using manual and powered tools.
Capable of reading HVAC system drawings, duct detail drawings, and marine installation schematics.
Knowledge of applicable standards including IMO ventilation codes, ABS rules, and SOLAS fire protection requirements.
Familiar with shipyard procedures, job safety analysis (JSA), and material traceability practices.
Experience with HVAC installations on commercial, naval, or offshore vessels.
Skilled in adapting shop-fabricated ducts to field conditions without compromising airflow or fire boundary integrity.
Strong teamwork and communication skills across trades (welders, pipefitters, insulation techs, etc.).
Willingness to work overtime or variable shifts in shipyard or onboard settings.