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Lather (Interior Systems Mechanic)

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Lathers (interior systems mechanics) install a wide variety of wall and ceiling systems and exterior finishes, bringing various buildings to a completed state.

On a typical job, lathers (interior systems mechanics):

  • read blueprints and work as a team with architects, engineers and associated trades to bring a project to completion;
  • install metal framing for walls, partitions, ceiling systems and ornamental detail;
  • apply base materials for stucco finishes including Styrofoam, stucco wire and metal lath, and apply various stucco finishes;
  • work with other trades to accommodate the installation of heating, plumbing, electrical and millwork;
  • install metal doors, window frames, access doors and insulation;
  • erect demountable partitions and various suspended ceilings as used in commercial office space;
  • install and finish drywall on commercial, residential and industrial projects; and
  • install load-bearing steel wall and floor systems used in the construction of non-combustible buildings.

Program Information

Program Information & Requirements
  • The term of apprenticeship for a lather (interior systems mechanic) is 3 years (three 12-month periods) including a minimum of 1560 hours of on-the-job training and 8 weeks of technical training in each first, second and third years.
  • Apprentices may attempt the Interprovincial Exam in the final period of their apprenticeship training and, if successful, be granted a Red Seal.
Trade Qualifier

Program Credit

Category Information
High School Credit

Supporting Resources

Description / Resources
Trade Information Get important information about the duties, working conditions, and skills and abilities needed to work in this trade. (You will be re-directed to the alis website.)
Job Information View job postings in this trade, and learn about the current job market, average wage and resources for finding a job. (You will be re-directed to the alis website.)
Entrance Requirement You must satisfy the educational requirements or pass the entrance exam to start an apprenticeship program. If you are writing the entrance exam, there are entrance-level competencies to help you prepare, as well as an exam counselling sheet and study guide.
Course Outline Get information on all of the program requirements and what you will learn.
Technical Training View a list of currently scheduled technical training classes.
Financial Assistance Student loans, grants, scholarships and other financial assistance may be available. For more information visit our Financial Assistance section, visit an Apprenticeship and Industry Training office or call toll-free to 1-800-248-4823.
Examinations Get exam counselling sheets for your upcoming apprenticeship, interprovincial or qualification exam.
Recognized Credentials A person who holds a valid recognized credential is permitted to work in Alberta, but some employers may require Alberta documentation as proof that the holder is allowed to work in the trade or that the holder's credential is recognized.
Trade Regulation For more information regarding tasks and activities, please review the Trade Regulation.