Block D – Roofing and Specialty Product Installation

Trends

Pre-engineered wall paneling systems are becoming a popular building construction option. The pre-finished insulated panels permit maintenance-free, quick and efficient installation for feature walls or exterior shells. There is an increase in the use of architectural sheet metal products such as copper roofs in the residential, institutional, historical and commercial sectors.

Related Components (including, but not limited to)

Flashing, coping, gutters, downspouts, conductors, scuppers, fasteners, sealants, sheet and batten, closures, fascia, awnings, canopies, finials, insulation, waterproof membranes, isolation membranes, pre-formed and roll-formed decking, sheeting and roofing products, lagging, cladding, kitchen hoods, backsplashes, countertops, laboratory components, medical facility products, food processing products, guards, signage, brackets, cleaning compounds, abrasives.

Tools and Equipment

See Appendix A.

Task 14 Installs metal roofing and cladding systems.

Context

Sheet metal workers install metal roofing and cladding products to provide low maintenance, longevity of the building and protection from the elements. Metal roofs and cladding can also add to the aesthetics of the building.

Required Knowledge

• K 1 types of roof structures such as pitched, tapered, domes and spires
• K 2 roof construction features such as hips, ridges and valleys
• K 3 access doors and roof hatches
• K 4 roof and wall materials and characteristics
• K 5 final appearance of roof and wall
• K 6 types of insulation such as fibreglass, styrofoam and fibreboard
• K 7 types of waterproof membranes such as mastic and plastic
• K 8 isolation materials such as wood blocks, plastic, felt paper, rubber and mineral surface
• K 9 air and vapour barriers
• K 10 manufacturers’ recommended installation methods for metal roofing and cladding systems
• K 11 types of roof and wall panels such as standing seam, batten and snap lock
• K 12 fasteners such as concealed and exposed clips, screws, washer nails and cleats
• K 13 thermal expansion and contraction of material
• K 14 effect of environmental conditions on material and installation
• K 15 roofing components such as expansion joints, flashings and gutters
• K 16 sealants such as caulking, solder and mastic
• K 17 manufacturers’ recommendations for application of sealants
• K 18 locations requiring sealing
• K 19 types of decking such as metal pan and Q-decking
• K 20 material to be applied on decking such as roofing, concrete, wood and insulation
• K 21 application methods for galvanized protective coating
• K 22 properties of metals (metallurgy)

Sub-task - D-14.01 Lays out roof and walls.

Key Competencies

• D-14.01.01 select and use tools such as transits, laser levels, framing square and chalk lines
• D-14.01.02 check the building for things such as penetrations, status and square
• D-14.01.03 establish reference lines
• D-14.01.04 confirm site measurements referencing plans, specifications and documents
• D-14.01.05 determine orientation of seams and joints taking into consideration the prevailing wind and according to building dimensions
• D-14.01.06 determine desired overall appearance
• D-14.01.07 prepare sheeting for installation procedures such as pre-drilling and hoisting

Sub-task - D-14.02 Installs insulation, isolation material and building envelope.

Key Competencies

• D-14.02.01 select and use tools and equipment such as screwdrivers, paint brushes and hammer-staplers
• D-14.02.02 apply building envelope such as felt paper, ice and water shield, and selfadhesive membrane to the building
• D-14.02.03 select and use fasteners such as pin bolts, screws and powder-actuated fasteners
• D-14.02.04 determine paneling system requirements according to manufacturers’ specifications and engineered drawings
• D-14.02.05 install panel mounting system such as z-bars, j-bars, clips and/or cleats
• D-14.02.06 apply and fasten insulation to structure
• D-14.02.07 apply isolation material such as neoprene, caulking and wood to structure according to specifications

Sub-task - D-14.03 Installs roofing and cladding system components.

Key Competencies

• D-14.03.01 select and use fasteners such as pre-engineered fasteners, screws, nails and bolts
• D-14.03.02 select and use tools and equipment such as drills, seamers, framing square and laser levels
• D-14.03.03 determine starting point to achieve finished appearance
• D-14.03.04 install required flashing
• D-14.03.05 cut, fit and fasten panels to the structure or mounting system following reference lines
• D-14.03.06 install expansion joints
• D-14.03.07 install coping, finish flashing, drainage and downspouts according to specifications

Sub-task - D-14.04 Seals exposed joints.

Key Competencies

• D-14.04.01 select and use tools and equipment such as caulking guns and soldering irons
• D-14.04.02 select sealant such as caulking, solder and mastic
• D-14.04.03 apply sealant according to manufacturers’ specifications
• D-14.04.04 apply joint or seam caps to secure seal and ensure watershed

Sub-task - D-14.05 Installs decking.

Key Competencies

• D-14.05.01 select and use tools and equipment such as welding equipment, abrasive cut-off saws and hand crimpers
• D-14.05.02 determine material required such as metal pan and Q-decking
• D-14.05.03 cut and fit decking
• D-14.05.04 fasten decking using welding equipment, screws and dimple tools
• D-14.05.05 frame out non-structural openings
• D-14.05.06 finish exposed welds to prevent corrosion

Task 15 Installs exterior components.

Context

Sheet metal workers install metal exterior components such as awnings, and signage for functional and aesthetic reasons.

Required Knowledge

• K 1 types of exterior surfaces such as concrete, metal, stone, wood and composite
• K 2 surface preparation such as cleaning, filling voids, grouting mortar lines and scoring surface for adherence
• K 3 cleaning compounds and abrasives
• K 4 exterior components such as awnings, finials, signage, decorative fascia and canopies
• K 5 fasteners such as anchors, nail-ins, screws and adhesives
• K 6 compatibility of fasteners and components
• K 7 final appearance of components

Sub-task - D-15.01 Prepares surface.

Key Competencies

• D-15.01.01 select and use tools and equipment such as grinders, putty knives and hammer drills
• D-15.01.02 check alignment of the exterior surface for aesthetic purposes and for ease of installation
• D-15.01.03 identify fastening points according to structural specifications
• D-15.01.04 determine fastening system according to product material type and manufacturers’ recommendations
• D-15.01.05 clean installation area using scrapers, grinders, wire brushes and chemicals such as degreasers and acids according to material type
• D-15.01.06 score surface for adherence according to material type
• D-15.01.07 apply waterproofing membrane or flashing to ensure watertight construction

Sub-task - D-15.02 Fastens exterior components.

Key Competencies

• D-15.02.01 select and use tools and equipment such as drills, screwdrivers, impact drivers and hammers
• D-15.02.02 select components to suit application and material type
• D-15.02.03 modify components, as required
• D-15.02.04 install fasteners such as anchors, nail-ins, screws and adhesives
• D-15.02.05 seal joints by soldering or caulking to weatherproof the building

Task 16 Installs specialty products.

Context

Sheet metal workers install specialty products in locations such as commercial kitchens, food processing plants, pharmaceutical laboratories, medical facilities and manufacturing plants. They also design and install stainless or non-stainless architectural products on or inside a variety of buildings.

Required Knowledge

• K 1 kitchen preparation products such as sinks, hoods, backsplashes and countertops
• K 2 pharmaceutical laboratory products such as tanks, conveyors and laboratory components
• K 3 food processing products such as flumes, guards and chutes
• K 4 medical facility products such as laundry chutes, counters and cupboards
• K 5 codes and regulations
• K 6 food grade caulking, solders and welding materials
• K 7 non-stainless steel metals such as aluminium and copper
• K 8 plastic products such as laboratory exhaust systems and sneeze shields
• K 9 fasteners such as screws, pop rivets and bolts
• K 10 types of finishes for architectural products

Sub-task - D-16.01 Installs stainless steel specialty products.

Key Competencies

• D-16.01.01 select and use tools and equipment such as welding equipment, grinders and snips
• D-16.01.02 install components according to codes, regulations and specifications
• D-16.01.03 select and use fasteners and hangers according to application
• D-16.01.04 isolate differing materials from each other to avoid electrolysis
• D-16.01.05 assemble components according to plan
• D-16.01.06 finish specialty product using sealants and coating such as food grade caulking, solders, welding materials and epoxy coating
• D-16.01.07 finish products according to requirements such as sanitary and aesthetic

Sub-task - D-16.02 Installs non-stainless steel products.

Key Competencies

• D-16.02.01 select and use tools and equipment such as welding equipment, grinders and snips
• D-16.02.02 install components according to codes, regulations and specifications
• D-16.02.03 select and use fasteners and hangers according to application
• D-16.02.04 isolate differing materials from each other to avoid electrolysis
• D-16.02.05 assemble components according to plan
• D-16.02.06 finish specialty product using sealants and coating such as solders, welding materials and epoxy coatings
• D-16.02.07 finish products according to requirements such as sanitary and aesthetic