Sheet Metal Worker Task Matrix and Weightings

MWA A – Performs common occupational skills 20%

1. Task A-1 Performs safety-related functions 22%

• A-1.01 Uses personal protective equipment (PPE) and safety equipment
• A-1.02 Maintains safe work environment
• A-1.03 Performs lock-out and tag-out procedures

2. Task A-2 Uses and maintains tools and equipment 39%

• A-2.01 Uses hand and portable power tools
• A-2.02 Uses shop tools and equipment
• A-2.03 Uses gas metal arc welding (GMAW) equipment
• A-2.04 Uses resistance spot welding equipment
• A-2.05 Uses gas tungsten arc welding (GTAW) equipment
• A-2.06 Uses shielded metal arc welding (SMAW) equipment
• A-2.07 Uses oxy-fuel and plasma arc cutting equipment
• A-2.08 Uses soldering and brazing equipment
• A-2.09 Uses measuring and layout equipment
• A-2.10 Uses testing and inspection devices
• A-2.11 Uses stationary and mobile work platforms
• A-2.12 Uses hoisting, rigging and positioning equipment

3. Task A-3 Organizes work 26%

• A-3.01 Uses trade-related documentation
• A-3.02 Interprets drawings
• A-3.03 Organizes materials and equipment for project
• A-3.04 Performs basic design and field modifications

4. Task A-4 Uses communication and mentoring techniques 13%

• A-4.01 Uses communication techniques
• A-4.02 Uses mentoring techniques

MWA B – Performs fabrication 31%

5. Task B-5 Performs pattern development 33%

• B-5.01 Develops patterns using simple and straight line layout
• B-5.02 Develops patterns using parallel line method
• B-5.03 Develops patterns using radial line method
• B-5.04 Develops patterns using triangulation method
• B-5.05 Uses computer technology for pattern development

6. Task B-6 Fabricates sheet metal components for air and material handling systems 42%

• B-6.01 Cuts ductwork, fittings and components
• B-6.02 Forms ductwork, fittings and components
• B-6.03 Insulates ductwork, fittings and components
• B-6.04 Assembles ductwork, fittings and components
• B-6.05 Fabricates dampers
• B-6.06 Fabricates hanger systems, supports and bases

7. Task B-7 Fabricates flashing, roofing, sheeting and cladding 9%

• B-7.01 Cuts metal for flashing, roofing, sheeting and cladding
• B-7.02 Forms flashing, roofing, sheeting and cladding

8. Task B-8 Fabricates specialty products 16%

• B-8.01 Cuts material for specialty products
• B-8.02 Forms specialty products
• B-8.03 Assembles specialty products
• B-8.04 Finishes specialty products

MWA C – Installs air and material handling systems 35%

9. Task C-9 Prepares installation site 17%

• C-9.01 Performs on-site measurements
• C-9.02 Performs demolitions for renovations
• C-9.03 Installs penetrations and sleeves
• C-9.04 Installs supports and bases
• C-9.05 Installs hangers, cables, braces and brackets

10. Task C-10 Installs and connects chimneys, breeching and venting to exhaust appliances and mechanical equipment 15%

• C-10.01 Installs chimney
• C-10.02 Connects appliances or mechanical equipment to chimney and breeching
• C-10.03 Installs high efficiency appliances and mechanical equipment

11. Task C-11 Installs air handling system components 39%

• C-11.01 Installs air handling equipment
• C-11.02 Installs sheet metal ducts and fittings
• C-11.03 Installs dampers
• C-11.04 Installs fire and fire/smoke dampers
• C-11.05 Installs registers, grilles, diffusers and louvers
• C-11.06 Installs terminal boxes
• C-11.07 Installs coils
• C-11.08 Installs system component accessories
• C-11.09 Installs plenums

12. Task C-12 Installs material handling system components 12%

• C-12.01 Installs pneumatic and gravity material handling system components
• C-12.02 Installs mechanized material handling system components

13. Task C-13 Applies thermal insulation, lagging, cladding and flashing 8%

• C-13.01 Applies thermal insulation to components
• C-13.02 Applies lagging and cladding to components
• C-13.03 Applies flashing to components

14. Task C-14 Performs leak testing, air balancing and commissioning 9%

• C-14.01 Performs leak tests
• C-14.02 Performs testing, adjusting and balancing (TAB)
• C-14.03 Participates in the commissioning of air and material handling systems

MWA D – Installs roofing and specialty products 8%

15. Task D-15 Installs metal roofing and cladding/siding systems 27%

• D-15.01 Lays out roof and walls
• D-15.02 Installs insulation, isolation material and building envelope components
• D-15.03 Installs roofing and cladding/siding system components
• D-15.04 Seals exposed joints
• D-15.05 Installs decking

16. Task D-16 Installs exterior components 21%

• D-16.01 Prepares surface
• D-16.02 Fastens exterior components

17. Task D-17 Installs specialty products 52%

• D-17.01 Installs stainless steel specialty products
• D-17.02 Installs non-stainless steel specialty products
• D-17.03 Installs marine products (Not Common Core)

MWA E – Performs maintenance and repair 6%

18. Task E-18 Performs scheduled maintenance 38%

• E-18.01 Performs maintenance inspections
• E-18.02 Services components

19. Task E-19 Repairs faulty systems and components 62%

• E-19.01 Diagnoses system faults
• E-19.02 Repairs worn or faulty components