Cover roofs of structures with shingles, slate, asphalt, aluminum, wood, or related materials. They spray roofs, sidings, and walls with material to bind, seal, insulate, or soundproof sections of structures.

Position and secure steel bars or mesh in concrete forms in order to reinforce concrete. They use a variety of fasteners, rod bending machines, blowtorches, and hand tools. Includes rod busters.

Assemble, install, or repair pipes, fittings, or fixers for heating, water, or drainage systems, according to specifications or plumbing codes.

Paint walls, equipment, buildings, bridges, and other structural surfaces, using brushes, rollers, and spray guns. They remove old paint to prepare surface prior to painting. They mix colors or oils to obtain desired color or consistency.

Apply insulating materials to pipes or ductwork, or other mechanical systems in order to help control and maintain temperature.

Line and cover structures with insulating materials. They work with batt, roll, or blown insulation materials.

Install glass in windows, skylights, store fronts, and display cases, or on surfaces, such as building fronts, interior walls, ceilings, and tabletops.

Install, maintain, and repair electrical wiring, equipment, and fixtures. They ensure that work is in accordance with relevant codes. They install or service street lights, intercom systems, or electrical control systems.

Apply plasterboard or other wallboard to ceilings or interior walls of buildings. They apply or mount acoustical tiles or blocks, strips, or sheets of shock absorbing materials to ceilings and walls of buildings to reduce or reflect sound. This includes lathers who fasten wooden, metal, or rockboard lath to walls, ceilings or partitions of buildings to provide a support base.

Apply hard tile, marble, and wood tile to walls, floors, ceilings, and roof decks.