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Class Code Information


Sheet Metal Work Erection, Installation or Repair – NOC – Shop or Outside – All Operations to Completion & Drivers

Not available for division of payroll at the same job or location to which Code 5536 “Air Conditioning and Heating Duct Work – Shop and Outside – All Operations to Completion & Drivers.”           


Code 5538 applies to employers engaged in installing sheet metal products such as gutters, leaders, skylights, cornices and flashings, as well as the custom manufacturing of these items, provided that the employer also installs these items.  These sheet metal items may be fabricated in-shop or at the customer’s premises.  The sheet metal used may be aluminum, galvanized metals, steel, tin or copper.  Various gauges of these metals are used.  The shop will utilize machinery such as circular shears, brakes, crimpers, radial arm saws, bending machines, punches or riveters. 

Also contemplated under this classification are gutters and drains that are attached to residential and commercial type structures for the purpose of catching and releasing rainwater.  Gutters are fabricated from sheet metal, which is cut, bent to shape and holes drilled if necessary.  The sections are secured together with nuts and bolts.  A downspout is attached to the end of a gutter and releases the water down to a splash block on the ground.

This classification also includes other sheet metal products manufactured and installed such as louvers, restaurant equipment, etc.  Some of these products are custom fabricated, however, they are made from sheet stock using the same machinery and installation techniques.

Assignment by Analogy

Cooling tower water tanks – sheet metal

Operations to be Separately Rated

  1. Installation:
    1. Sheet metal – duct type HVAC systems.  Refer to Code 5536 “Air Conditioning and Heating Duct Work – Shop and Outside – All Operations to Completion & Drivers.”
    2. Sheet metal on roofs sloped 10 degrees or more.  Refer to Code 5545 “Roofing – NOC – All Operations to Completion & Drivers.”

Industry Group