An insulator applies and removes thermal, acoustic, and moisture insulation materials to buildings and mechanical systems, using blueprints to measure and cut materials, and tools like wire, tape, or straps to secure them. Duties include working in various environments and heights, prioritizing safety by wearing personal protective equipment (PPE) against dust and hazardous materials, and cleaning the work area. Key skills are manual dexterity, attention to detail, basic math and mechanical skills, and the ability to work both independently and as part of a team.