该小组履行以下部分或全部职责：

抹灰工

• 清洁和准备表面
• 将槽中的石膏成分混合至所需的稠度
• 使用镘刀、抹子、刷子和喷涂设备涂抹、平整和平滑石膏层
• 在建筑物的外部抹上或喷涂灰泥涂层以形成防风雨表面
• 如果需要，完成角落和角度并在面漆中创建装饰设计
• 治疗新抹灰的表面
• 塑造和安装装饰性石膏板、飞檐和饰边
• 在墙壁和天花板上喷涂声学材料或纹理饰面。

石膏板安装工和修整工

• 测量、切割和安装干墙板以安装在墙壁和天花板上
• 将板材定位并固定到金属或木制螺柱或托梁上
• 切割并安装金属角珠以保护外角
• 使用抹子和宽刀用填缝料填充接缝、钉痕、孔洞和裂缝
• 使用胶带机在接缝处贴上胶带并将胶带嵌入化合物中
• 抹平多余的化合物并让涂层干燥
• 在接缝和接缝处涂上连续的复合层和砂层
• 制造和安装悬挂式金属天花板网格并放置在面板中以形成隔音和格子天花板。

泡沫

• 准备墙壁和天花板布局
• 使用手动和电动工具为室内石膏板或石膏墙和天花板安装金属立柱框架和水边
• 使用钉子、螺丝、夹子或扎带将金属或石膏板条固定在立柱或水垢上
• 在板条上切割供暖和通风管道、管道和电源插座的开口
• 在要涂灰泥的梁周围安装角珠和金属丝网
• 可以安装隔音砖、吊顶吊架和组合墙板或板条的金属螺柱。

• 通常需要完成中学学业。
• 通常需要完成三年或四年的抹灰、石膏板或板条加工学徒计划，或者结合三年以上的工作经验和一些高中、大学或行业的石膏板、石膏板加工或板条加工课程。
• 石膏工行业认证在魁北克是强制性的，在安大略省、萨斯喀彻温省和不列颠哥伦比亚省是自愿的。
• 不列颠哥伦比亚省提供石膏板安装工和修整工行业认证，但属于自愿性质。
• 泡沫（内部系统力学）的行业认证在魁北克是强制性的，在所有其他省份和育空地区是自愿的。
• 红印章背书也适用于成功完成省际红印章考试的合格车手（内饰系统技工）。

• 随着经验的积累，可能晋升到主管职位。
• 红印章背书允许跨省流动。

• 承包商和主管、其他建筑行业、安装人员、维修人员和服务人员 ( 72014)

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)