Insulators apply insulation materials to plumbing, air-handling, heating, cooling and refrigeration systems, piping equipment and pressure vessels, and walls, floors and ceilings of buildings and other structures to prevent or reduce the passage of heat, cold, sound or fire.

Example titles: boiler and pipe insulator, building insulator, firestopping insulator, heat and frost insulator, insulation applicator, insulation mechanic, insulator, insulator apprentice, sound insulator