Occupational Titles Beginning with Letter I

Insulator (Batt or Blown)

CODE: 115


Blows insulating material into spaces within walls, floors and ceilings using a hose attached to a blower, to insulate buildings or structures. Installs insulation sheets or batts in walls and ceilings.


Inserts nozzle of hose through opening into spaces to be filled. Signals other worker to start blower. Turns valve to regulate insulation flow from hose nozzle and moves hose to distribute insulating material evenly. Climbs ladder or erects scaffold to reach working position. Seals insulation access hole with bung or cap using hammer and punch. Installs insulation material in sheet or batt form in walls and ceilings by using nails or lacing wire. Injects foam insulation in cavities in or between blocks, bricks, other masonry units or structural components.


CODE: 116


Raises, places and unites girders, columns and other structural steel members. Positions and secures steel bars in concrete. Installs prefabricated ornamental ironwork, other than structural steel, such as metal windows and door frames, heavy industrial type doors, metal trim and paneling and aluminum curtain wall frames.


Fastens steel members to cable of hoist using chain, cable or rope. Signals worker operating hoisting equipment to lift and place steel member. Guides member using tag line or rides on member in order to guide it into position. Pulls, pushes or pries steel members into approximate position while member is supported by hoisting device. Forces members into final position using turnbuckle, crowbar, jack and hand tools. Aligns bolt holes in member with corresponding holes in previously placed member by driving drift pins or handle of spud wrench through holes. Verifies vertical and horizontal alignment of members using plumb bob and level. Bolts aligned members to keep them in position until they can be permanently riveted, bolted or welded in place. Catches hot rivets in bucket and inserts rivets in holes using tongs. Holds rivets and uses pneumatic hammer to form heads on rivets. Cuts and welds steel members to make alterations using oxyacetylene welding equipment. Moves, handles, places and sets machinery and equipment (except electric motors) when rigging, power equipment, or both is used. Assembles and erects radio, television, microwave and other types of self-supporting or guyed towers (except electrical transmission towers). Moves, handles and places machinery to be assembled, dismantled, erected or installed to its approximate position over anchor bolts. Determines number, size, shape and location of reinforcing rods from blueprints, sketches or oral instructions. Selects and places rods in forms spacing and fastening them together using wire and pliers. Cuts bars to required lengths using hacksaw, bar cutters or acetylene torch. Bends steel rods with hand tools or rodbending machine. Attaches post tensioning cables and prestressed cables on-site including the tensioning process.

Installs, measures, marks and lays out metal windows (except store front display windows), curtain walls and panels according to blueprints using rule, template, square and compass. Welds brackets to lintels, sills, columns and other structural framework. Drills holes in metal, concrete and masonry using portable power drills, airhammer and hand tools. Cuts, miters and bevels metal trim and cover plates to size using handsaw or portable power saw. Caulks metal-to-metal and metal-to-brick joints. Installs security ceilings and prison security doors utilizing a central lock-up system. Bolts, clips, welds or solders ironwork together and to brackets or anchors. Verifies level and plumbness using level or plumb bob. Installs catwalks, platforms and stairways made of steel. Bolts newell posts, balusters and other parts of stairways and stair rails to supports or embeds them in sockets. Fastens cover plates and molding in place with metal screws to finish and trim work. Installs expansion joints on new bridges and decks. Erects heavy industrial doors (curtain type or overhead rolling type) when made of metal, fire doors and exterior metal hinged doors that carry a fire underwriters label. Installs metal floor decking. Erects precast girders, single T's, double T's, top panels and tilt-up slabs. Installs catwalks, stairways and handrails made of aluminum, bronze or any type of metal, glass or plastic. Installs ornamental iron such as revolving doors, gates, handrails, window grills and jail cell work. Erects dry storage bins, hoppers, chutes and conveyors where ore, sand, coal or any dry component is stored or transferred. Erects cableways, tramways and monorail transportation systems. Erects locks and gates on waterways. Erects large metal highway signage (except guardrails). Installs bleachers and benches made of steel. Reinforces concrete with wire mesh on floor systems. May fabricate frames for mounting glass in ornamental cast stonework. May burn off old and weld on or set new sole plates and bearing pads. May install roof decking and siding. May install pallet racks and associated shelving. May perform work associated with the installation or setting of mats, mesh, and rods in shafts and tunnels.

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