Installs and replaces insulation in buildings and mechanical systems. Reads building plans and blueprints to calculate the quantity and type of insulation materials needed to fulfill job requirements. Clears and disposes of old insulation according to established safety guidelines. Loads and unloads insulation materials. Installs or sprays insulation in attics. Measures and cuts insulation to fit into walls, ceilings, and around pipes. Fastens insulation in place with tape, screws, staples, or fasteners as needed. Transports needed tools and equipment to jobsite. Follows company and industry safety guidelines and regulations. Performs other related duties as assigned.