Insulators apply insulation materials to plumbing, heating, cooling, and refrigeration systems, piping equipment, pressure vessels, and interior surfaces of buildings to prevent / reduce the passage of heat, cold, sound, and fire.
Building Insulator
Insulator
Insulator Apprentice
Insulators work in retail / repair and service shops, construction companies, for insulation contractors, and building maintenance contractors. They also may be self-employed.
Here are some schools that have programs related to this career: