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This group performs some or all of the following duties:

Plasterers

• Clean and prepare surfaces
• Mix plaster ingredients in trough to desired consistency
• Apply, level and smooth coats of plaster using trowels, floats, brushes and spraying equipment
• Trowel or spray coats of stucco over exteriors of buildings to form weatherproof surfaces
• Finish corners and angles and create decorative designs in finish coat, if required
• Cure freshly plastered surfaces
• Mould and install ornamental plaster panels, cornices and trim
• Spray acoustic materials or texture finish over walls and ceilings.

Drywall installers and finishers

• Measure, cut and fit drywall sheets for installation on walls and ceilings
• Position and secure sheets to metal or wooden studs or joists
• Cut and install metal corner beads to protect exterior corners
• Fill joints, nail indentations, holes and cracks with joint compound using trowel and broad knife
• Tape over joints using taping machine and embed tape in compound
• Smooth out excess compound and allow coat to dry
• Apply successive coats of compound and sand seams and joints
• Fabricate and install suspended metal ceiling grids and place in panels to form acoustical and coffered ceilings.

Lathers

• Prepare wall and ceiling layouts
• Install metal stud framing and furring for interior drywall or plaster walls and ceilings, using hand and power tools
• Attach metal or gypsum lath to studs or furring using nails, screws, clips or wire ties
• Cut openings in lath for heating and ventilation piping, ducts and electrical outlets
• Install corner beads and wire mesh around beams to which plaster is to be applied
• May install acoustic tile, hangers for suspended ceilings and metal studs for composition wallboard or lath.

• Completion of secondary school is usually required.
• Completion of a three- or four-year apprenticeship program in plastering, drywalling or lathing or a combination of over three years of work experience and some high school, college or industry courses in plastering, drywalling or lathing is usually required.
• Plasterer trade certification is compulsory in Quebec and available, but voluntary, in Ontario, Saskatchewan and British Columbia.
• Drywall installer and finisher trade certification is available, but voluntary, in British Columbia.
• Trade certification for lathers (interior systems mechanics) is compulsory in Quebec and available, but voluntary, in all other provinces and the Yukon.
• Red Seal endorsement is also available to qualified lathers (interior systems mechanic) upon successful completion of the interprovincial Red Seal examination.

• Progression to supervisory positions is possible with experience.
• The Red Seal endorsement allows for interprovincial mobility.

• Contractors and supervisors, other construction trades, installers, repairers and servicers (72014)