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Laggers apply insulating materials, such as felt, fibreglass, polyurethane and cork, to pipes, steam generators, process vats and ducting, and secure insulation with wire, wire netting, staples, metal strapping and using welding torches.


  • organises insulating materials to be available for application
  • measures cuts and applies insulation
  • secures insulation using tools/machinery.


  • physically demanding
  • working outdoors.

To become a Lagger

  • You can work as a Lagger without formal qualifications, however, they may be useful. Some workers have Vocational Education and Training (VET) qualifications in areas such as carpentry, joinery, engineering trades or plumbing.

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