What does a Exterior Insulated Finishing Systems Mechanic (455A) do?

An Exterior Insulated Finish Systems (EIFS) Mechanic installs building systems that integrate a resinous exterior cladding with a continuous layer of insulation on the exterior of a building or structure. EIFS Mechanics are commonly referred to as stucco workers.

Job Related Skills, Interests and Values

  • Reading and interpreting drawings, specifications, and manuals
  • Preparing substrates; selecting and applying barriers, adhesive applications, and mechanical attachment; preparing and installing rigid insulation board
  • Applying reinforcing mesh, base, and textured finish coats
  • Selecting, setting up, maintaining, and operating various hand/power tools and equipment
  • Maintaining good physical condition and working well with co-workers under deadlines
  • Maintaining up-to-date knowledge regarding work-related materials and regulations

What Preparation and Training Do You Need?

  • Grade 10 is the legal minimum, but high school diploma is usually required; co-op or technical courses are an advantage
  • Completion of 3,600-hour apprenticeship, including on-the-job and in-school training
  • Completion of exam to obtain Certificate of Qualification
  • Mandatory health and safety certificates are required prior to starting work

What's Your Future as a Exterior Insulated Finishing Systems Mechanic (455A)?

  • Employed by contractors on construction or repair jobs; some may be union members
  • Seasonal work; expect periods of unemployment due to inclement weather
  • Steady demand for work
  • Typical employers include residential developers, building construction firms, construction and roofing contractors, and independent contractors

Wage Rate

Apprentice wage increases with skill and experience. Fully qualified workers earn an average of $25.00 per hour.


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