An insulator, or heat and frost insulator, applies thermal and acoustic insulation to buildings and mechanical systems to control temperature, reduce energy loss, and contain sound. This hands-on role involves reading blueprints, measuring and cutting insulation materials like fiberglass or styrofoam, and securing them with methods such as wiring, stapling, or strapping. A key aspect is adhering to strict safety protocols, as insulators work with dusty materials and in confined spaces, often at heights, wearing protective gear.