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Trades Qualification and Apprenticeship Act
Loi sur la qualification professionnelle et l’apprentissage des gens de métier

R.R.O. 1990, REGULATION 1058

Amended to O. Reg. 331/07

GLAZIER AND METAL MECHANIC

Note: This Regulation was revoked on July 5, 2007. See: O. Reg. 331/07, ss. 10, 11.

This Regulation is made in English only.

1. In this Regulation,

“certified trade” means the trade of glazier and metal mechanic;

“glazier and metal mechanic” means a person who,

(a) performs layout, fabrication, assembly and installation of extruded frames, hardware, store fronts, wall facings, manual sliding doors, window sashes, manual door closers, automatic door operators and curtain walls,

(b) performs layout, fabrication, assembly and installation of suspended glass fronts, stuck glass fronts, auto glass, art glass, aquariums and similar special products,

(c) cuts, fits and installs glass in wood and metal frames for windows, skylights, store fronts and display cases, or on building fronts, interior walls, ceilings, tables and similar surfaces by means of mastic, screws or decorative moldings, and

(d) reads and understands design drawings, manufacturers’ literature and installation diagrams. R.R.O. 1990, Reg. 1058, s. 1.

2. The trade of glazier and metal mechanic is designated as a certified trade for the purposes of the Act. R.R.O. 1990, Reg. 1058, s. 2.

3. An apprentice training program is established for the certified trade and shall consist of four periods of related training and work experience training of 2,000 hours for each period,

(a) at full-time educational day classes provided at a College of Applied Arts and Technology or in courses that, in the opinion of the Director, are equivalent thereto, in the subjects contained in Schedule 1; and

(b) in work experience training provided by the employer of the apprentice in the subjects contained in Schedule 2. R.R.O. 1990, Reg. 1058, s. 3.

4. The subjects of examination for an apprentice in the certified trade are the subjects contained in Schedules 1 and 2. R.R.O. 1990, Reg. 1058, s. 4.

5. The rate of wages for an apprentice in the certified trade whether for the regular daily hours of the apprentice or for hours in excess of the regular daily hours of the apprentice shall not be less than,

(a) 50 per cent during the first 1,000 hours of training and instruction;

(b) 55 per cent during the second 1,000 hours of training and instruction;

(c) 60 per cent during the third 1,000 hours of training and instruction;

(d) 65 per cent during the fourth 1,000 hours of training and instruction;

(e) 75 per cent during the fifth 1,000 hours of training and instruction;

(f) 80 per cent during the sixth 1,000 hours of training and instruction;

(g) 90 per cent during the seventh 1,000 hours of training and instruction;

(h) 95 per cent during the eighth 1,000 hours of training and instruction,

of the average hourly rate of wages or its equivalent for journeymen employed by the employer in that trade and with whom the apprentice is working. R.R.O. 1990, Reg. 1058, s. 5.

6. The number of apprentices who may be employed by an employer in the certified trade shall not exceed,

(a) where the employer is a journeyman in the trade, one apprentice plus an additional apprentice for every four journeymen employed by that employer in the trade and with whom the apprentice is working; and

(b) where the employer is not a journeyman in the trade, one apprentice for the first journeyman employed by the employer plus an additional apprentice for each additional four journeymen employed by that employer in the trade and with whom the apprentice is working. R.R.O. 1990, Reg. 1058, s. 6.

7. (1) Section 9 and subsections 10 (2) and (4) of the Act do not apply to a person who works or is employed in the certified trade. R.R.O. 1990, Reg. 1058, s. 7 (1).

(2) Subsection 10 (3) of the Act does not apply to an employer in the certified trade. R.R.O. 1990, Reg. 1058, s. 7 (2).

8. A certificate of qualification in the certified trade is not required to be renewed. R.R.O. 1990, Reg. 1058, s. 8.

SCHEDULE 1
GLAZIER AND METAL MECHANIC

In-School Training

Item

Column 1

Column 2

Column 3

 

Course

Subject

Instruction to be Given

1

Mathematics (Trade Related)

Mathematics

Addition, subtraction, multiplication and division of whole numbers, fractions and decimals, ratio and proportion, areas. Radian measure, right angle triangle, square root, simple formulae and equations.

   

Geometry

Lines, planes and angles: application to layout.

2

Science

Physics

Basic laws and principles, properties of matter, formulae. (Given as required in shop instruction).

3

English

Usage and Business Communication

Trade terminology and usage. Sentence and paragraph structure. Letter and report writing. Work and parts orders. Interpretation and use of manufacturers’ manuals, job specifications.

4

Drafting

Basic Drafting and Interpretation

Drafting techniques: scales, symbols, projections. Preparation of elementary trade related working drawings and dimensioned sketches. Reading and interpretation of floor plans and elevations: sectional and cross sectional details.

5

General Trade Practice

Safety

Safety rules and safe operating procedures. Protective clothing and equipment. First aid. Fire prevention; use and maintenance of fire fighting equipment. Handling and storage of flammable and toxic solvents and materials. The Occupational Health and Safety Act. The Workers’ Compensation Act. Correct lifting methods and use of lifting and hoisting equipment. Handling crated, loose and broken glass. Safe use of electrical tools and equipment and powder actuated tools. Truck and vehicle condition and loading. Good housekeeping.

   

Hand Tools

Selection, care and use of: hammers, screwdrivers, wrenches, files, allen keys, punches, rivetting tools, nail sets, scrapers, taps, pliers, clamps, snips, cold chisels and wood chisels, hacksaws, glass cutters: —diamond, fixed and interchangeable wheel; hackout knives, handstones, crow-bars, paint brushes and soldering equipment. Putty knives, caulking guns and dry glazing tools and point setters.

   

Power Tools and Equipment

Care and use of portable air/electric drills, power tap guns and screwdrivers. Power circular and jig saws, routers. Powder actuated tools. Grinders: bench and portable, belt sanders; wheel and belt abrasive grades. Types and characteristics of drill bits and hole saws; drill gauge use. Grinding and sharpening procedures. Hand-brake and shears. Scaffolds, swing stages (manual and electric). Ladders and steps. Heating boxes.

   

Glass Handling Devices and Equipment

Types, care and correct usage: suction cups, slings and webs, gloves and hand rubbers. Power suction gear use. Loose and crated glass dollies. Stationary and moveable racks.

   

Measuring and Marking Tools

Care and use of rules, straight edges, protractors, squares and scribes. Centre-punches, angle dividers. Spirit levels, transits and plumb-bobs, chalk and mason’s lines. Measuring: use of grid and base lines and benchmarks. Layout of right angles by measurement.

   

Benchwork

Metal, wood, plastics and masonry; sawing, filing, chipping, shearing, braking, drilling and chiselling.

   

Cutting-Table Operations

Glass cutting principles and methods for: sheet, polished plate, patterned and shaped glass. Cutter type selection, use, cooling and lubrication requirements. Free-hand cutting. Use of templates, straight edges, wood squares, circle cutters. Cutting inner and outer circles. Faulty cut causes and detection. Glass cut breaking methods. Hand finishing glass edges: hand stone types and usage. Purpose of wetting stone. Procedures for arrissing and grinding: angles and purpose.

   

Fastening Devices

Types and sizes of woodscrews, sheet metal screws, self-tapping screws, expansion shields, toggle bolts, powder actuated fasteners, nuts and bolts, washers, rivets, nails, specially designed masonry fasteners. Factors governing selection. Screw thread terminology and systems. Thread purpose and fit classification. Installation and removal procedures. Torque setting. Locking methods. Drilling and tapping procedures. Power tapping. Removal of broken taps, studs and screws.

6

Glass

Glass Facts

History. Composition. Properties: viscosity, devitrification, specific gravity. Thermal expansion and conductivity. Tensile, compressive and impact strengths. Light reflection loss. Sound transmission. Maximum glass sizes.

   

Glass Manufacturing Processes

Manufacture: mixing (frit), melting, drawing, annealing. Sheet glass: crown process, bulls-eyes or bullions, cylinder and flat drawn. Rolled glass: rolled and rough cast, cathedral and figured rolled, wired glasses. Polished plate glass. Float glass.

   

Glass Function and Recognition

Purpose, thickness and qualities.

     

—Transparent glass: sheet, polished plate and float glass: thickness specifications and quality selection.

     

—Translucent glass: cathedral, figured, rolled, antique, sand-blasted and acid-etched glasses; thickness specifications and tints.

     

—Opal glasses; flashed opal and pot opal sheet, rolled and polished opal sheet; thickness specifications and colours.

     

—Special purpose glasses; wired-cast or polished (georgian, hexagonal, diamond, single-strand). Toughened glass: fully tempered and heat-treated types; thickness and size limitations, edge conditions and configurations, warpage.

     

—Laminated glass: dual and multiple.

     

—Heat absorbing sheet, plate and rough glass; thickness, colour, tint, transmission factors, edge condition.

     

—Heat reflecting glass: sheet and plate; thickness, colour, tint density, heat reflection and light transmission factors, edge condition.

     

—Lead-plate glass (x-ray): thickness, cutting methods and problems.

     

—Prismatic glass: light refraction properties.

     

—Cladding (Spandrel) glasses: plate, sheet, textured, standard and special colours; heat strengthening, warpage, size limitations.

   

Miscellaneous Glasses

Factory sealed units of plate, sheet, wired, textured or patterned, heat-absorbing or heat-reflecting and toughened glass; size limitations, air seal, air space, edge protection. Insulation factors, effective condensation control. Methods of avoiding thermal breaks in units.

     

—Veneer and structural glasses: glass veneers, firefinished, mechanical polished and float finished surfaces: annealed, toughened and laminated types; size limitations, colour range and matching, thickness. Edge and hole preparation, integral lettering or design.

     

—Structural glass blocks and channels, surface textured, corrugated and wired glasses; size limitations.

   

Mirrors

Plate, sheet, tinted and antique glass; glass quality, toughening, decorative cut, bevelled, sand-blasted, etched. Framed mirrors. Single mirror exposed edge installation: use of clips and rosettes. Multiple mirrors; ground and polished to butt. Mirror-flex and mirror-pane.

     

—Transparent mirrors: annealed, toughened, tinted; size limitations, surface protection. Light intensity differential, effective light ratios.

   

Glass Preparation

Cutting tolerances. Chipping and nipping, notching. Edgework procedures: grinding, polishing, mitering, levelling. Drilling techniques: use of carboloy, triangular or spade, tubular (regular or diamond impregnated) type drills; speeds and feeds, abrasives, coolants. Surface finishes: sand blasting and acid etching techniques. Bending and forming procedures.

   

Plastics

Types and characteristics: Transparent, translucent, decorative, flat, corrugated, moulded, extruded, rigid or flexible—colour. Working, handling and cleaning techniques.

7

Metals

Metal Types, Properties

Composition and properties: aluminum, mild steel, stainless steel, bronze and copper, alloys, malleability. Expansion and contraction factors. Availability. Selection factors: strength, cost durability, compatability, workability; architectural features, engineering requirements.

   

Metal Shapes and Sections

Sheet manufacturing processes: hot and cold rolled, smooth and textured surface. Standard sizes and size limitations. Thicknesses and gauges.

     

—Formed sheet (brake-shape): hand and power braking procedures; size, design arid thickness limitations. Brake-line surface distortion.

     

—Rolled sections: rolling procedures. Design limitations. Economics vs. braking.

     

—Extrusions: extruding process. Simple and porthole extrusions. Permissible tolerances, relative strength and appearance.

   

Surface Finishes and

—Mechanical finishes: millfinish, belt finish (grit types) and polished.

   

Protective Coatings

—Electrolytic and chemical finishes: acid etching. Anodizing; clear and coloured finishes, skin thickness. Colour matching, surface hardeners.

     

—Paint finishes: lacquer, baked enamel. Degrees of gloss.

     

—Ceramic and porcelain-enamel glaze finishes. Touch-up procedures.

     

—Temporary surface protectors and removal techniques: lacquers (brush or spray), strippable plastic coatings (brush or spray), petroleum jelly, self-adhesive paper and tapes.

8

Glazing Materials

Properties of Sealants and Glazing Materials

Adhesion. Cohesion. Elongation. Modulus of elasticity. Hardness. Ultimate life. Tensile and compression strength, curing. Safety precautions: fumes, toxic action, fire hazards.

   

Conventional Glazing Materials (Knife grade and tapes)

—Oleo-resin compounds: wood and metal sash putty. Synthetic resin compounds: wood and metal mastics.

—Butyl-rubber compounds, pre-formed tape (including reinforced types). Polybutene mastics and polyisobutelene tapes.

   

Sealant Types (Gun grade, 1-part and 2-part)

Oleo-resin compounds. Synthetic resin, polybutene, liquid polymer acrylic-base, butyl rubber and urethane compounds. Polysulphide, silicone rubber and acrylic types. Primers and surface conditioners. Back-up materials: styrofoam and foam rubber. Shelf life, pot life and curing time.

   

Dry Glazing Materials

Neoprene and vinyl roll-in splines and U-channel gaskets. Neoprene structural gaskets: spline or compression types. Felt, cork or rubber stripping.

   

Glazing Accessories

Types of setting blocks: lead, treated hardwood, neoprene and vinyl. Spacers: cork, neoprene and vinyl, treated hardwood. Glazing clips: spring wire, wedge, points. Special clips designed by manufacturers.

   

Material Selection

Governing factors: joint purpose and size; type of materials to be joined; installation sequence and working conditions; exposure to air, moisture temperature and light rays; economical factors; expected joint movement; architect’s specifications.

   

Joint Preparation

Architect’s and manufacturer’s instructions. Surface preparation methods: dry cleaning (wiping, wire brushing, scraping) Wet cleaning: cleaning solvents. Priming. Surface conditioning. Joint back-up.

   

Material and Applicator Preparation and Usage

Job quantities. Manufacturer’s packaging types. Mixing, stirring. Heating as required. Selection and preparation of applicators. Material application by appropriate procedures and techniques. Material compatability. Procedures for cleaning applicators and material surfaces. Cleaning solvent types and usage. Site clean-up.

9

Adhesives

Adhesive Selection and Usage

Types and characteristics; glass veneer mastics, mirror mastics; epoxy, contact and plastic cements. Selection factors: material nature; air, moisture and temperature exposure; required holding power and resiliency. Application methods.

10

Glass Cements

Cement Selection

Types and characteristics: one-part and two-part glass cements. Pointing compounds.

     

Selection factors: required holding power, resiliency to accommodate movement, required waterproofing degree, clamping requirements and colour. Handling and preparation: storage, shelf life, temperature and moisture damage. Mixing procedures — importance of manufacturer’s instructions. Pot life. Safety precautions: fire and physical hazards. Procedures and techniques for installation of show cases, all-glass entrances and stuckglass fronts.

11

Hardware and Operating Equipment

Door Hinges and Pivots

Types and characteristics: butt, gravity, doubleacting, spring loaded, piano. Burglar proof types. Centre-hung, offset, intermediate pivots.

   

Locks and Operating Hardware

Dead-locks, latch-locks. Flush-bolts. Electric strikes, panic devices (concealed or surface mounted), push and pull hardware: single and double acting.

   

Thresholds and Guards

Centre-hung, offset and interlocking. Integral or surface mounted kick-plates. Buggy-bumpers and guard rails. Finger guards.

   

Door Stops

Friction stays, drop arms, floor or wall mounted door stops; wind arrestors, chains, door co-ordinators.

   

Weathering

Mohair pile, door or frame mounted, fixed or adjustable neoprene or rubber sweeps. Inter-locking types. Astragals.

   

Door Closers (Manual Types)

Overhead exposed (pot or stream-lined types) and overhead concealed (frame or door mounted), floor concealed (single or double-acting, centre-hung, offset), balanced, revolving (manual or electric assist).

   

(Automatic Types)

Pneumatic, hydraulic, electric: swing, sliding, overhead or in-floor mounted, single or multiple door operation; power or spring closing action; high or low pressure systems.

   

Door Controls

Carpet and hardware controls: Photo-electric cells; radio-wave controls; pull-cord switches; control boxes.

   

Sliding Door Hardware

Patio door locks and pulls. Roller assemblies and nylon guides. Door bumpers. Fly-screen hardware.

   

Showcase Hardware

Sliding door track and guides (roller, ball bearing, plastic). Locks: ratchet, friction and pin types. Finger pulls. Standards and shelf brackets. Counter posts.

   

Window and Sash Hardware

Friction stays and hinges. Sash locks and balances. Manual remote controls.

   

Miscellaneous Hardware

Mirror clips. Rosettes, glass mitre clamps. Three way clamps.

12

Installation Procedures Glazing

Face Glazing

Wood and metal sash: squaring and plumb checks. Cleaning. Priming. Bedding: face and edge clearance. Setting-blocks and spacers. Glass holding: use of clips, wedges and points. Facing and stroking off. Filling voids. Excess compound removal.

   

Stop Glazing

Wood and metal sash (fixed and opening): squared, plumbed, cleaned, primed. Snap-on or screw-on stops. Bedding; use of compound, preformed tapes. Setting blocks and spacers. Edge clearance and bite on glass. Use of sealants for heel and needle bead neoprene or vinyl glazing strips.

   

Dry Glazing

Glazing-in rolled store front sections (glass to metal). Glazing-in extruded sections (neoprene or vinyl strip). Preparation of opening. Setting blocks at quarter points. Edge clearance and bite on glass. Application of stops (screw-on or snap-on). Application of neoprene or vinyl glazing strips.

   

Gasket Glazing

Checking of openings and sashes: importance of size and squareness tolerances.

     

—Gasket types and application. Setting glass (arrissing, spatula and lubricant use). Placing of locking strips; use of locking tools and lubricants.

   

Glass Veneers

—Wall preparation: checks for firmness, flatness and plumb. Surface conditioning (dry wall). Layout.

     

—Placing of supporting clips and retaining molding. Cutting, nipping, arrissing and back-chipping glass. Mastic application, backspacing and coverage. Setting glass veneer, pointing joints and cleaning.

   

Mirrors

—Wood or metal framed. Tamper-proof types.

     

—Unframed: use of clips, rosettes, mirror-mastics, fasteners, mirror molding. Alignment procedures. Installation of mirror sliding doors, one-way mirrors and mirrorflex.

   

Showcases

Measuring. Types of joints. Use of clamps or moldings, adhesive and sealants.

   

Sliding Glass Doors (Unframed)

Types of glass and size limitations. Measuring procedures. Installation of tracks, finger pulls and locks.

   

Shelves

Types of glass and size limitations. Use of brackets and standards.

   

Counter Partitions

Types of glass and size limitations. Use of counter posts. Speak-holes and covers, pay-holes and covers.

   

Table Tops

Preparation of table top patterns.

   

Curtain Walls

Planning and layout. Hoisting and placing glass on floors. Preparation of openings. Setting of vision and spandrel glass; use of swing stage. Condensation drainage and venting considerations. Application of pressure plates and stops. Finishing trims. Special hazards and safety precautions.

13

Installation Procedures Metal

Store Fronts (Rolled Sections and Brake­Shapes)

On-site layout procedures and techniques for: sill sections, head and side jambs, sash (full and half), division, corner and muntin bars, stops, caps, awning boxes and hoods, canopies. Installation and setting procedures. Protection methods.

   

Extruded Frames (Including Swing Doors)

Job-site checks and measuring. Frame layout and fabrication: use of jigs and templates. On-site assembly and frame installation. Hanging and glazing doors. Adjusting doors.

   

Non-operating Hardware

Procedures for installation of: hinges, pivots, push and pull door hardware, locks, cylinders, flush-bolts and keepers. Panic hardware. Door hold-open devices, bumpers and wind-arrestors. Thresholds and kickplates. Door stops, astragals and finger-guards. Buggy bumpers and guardrails. Friction stays, sash locking devices and weathering devices. Layout procedures and techniques: use of jigs and templates. Adjustment procedures.

   

Operating Hardware (Manual)

Procedures for installation of floor concealed (offset, centre-hung, single and double acting) closers. Overhead, (surface mounted or concealed, door or transom mounted) closers. Balanced and revolving door types. Adjustment and maintenance procedures. Layout procedures and techniques: Use of jigs and templates.

   

(Automatic)

Layout procedures and techniques for installation of electric, pneumatic and hydraulic types. Controls: carpet, photo-electric, radio wave, pull cord switches and control boxes. Adjustment and maintenance procedures; use of test equipment.

   

Wall Facings

Installation procedures for wall facings formed from: flat aluminum sheet, metal brake shapes, extruded or rolled sections. Solid or hollow panels. Plastic window walls and sky-lights. Protection methods.

   

Sliding Doors (Manual)

Installation procedures for residential patio and commercial store front doors. Tub and shower enclosures. Mirror sliding doors. Protection methods.

   

Window Frames

Punched, strip (horizontal or vertical) (fixed or opening) (top, bottom or side hung), (inward or outward opening) or sliding (horizontal or vertical), insulated or non-insulated, inside or outside glazed (single or double). Layout, assembly and installation procedures for: sills, drip deflectors, expansion joint covers, anchors, blocking, base frames, fasteners, expansion mullions, opening sashes and related hardware. Sealant application.

   

Curtain Wall

Interpretation of plans and specifications; checking wall components with drawings and parts lists. Establishing lines, levels and grade marks; layout and presetting anchors. Preassembly of wall components. Installation and alignment of sections on lowest floor level. Installation and alignment of remaining wall grid. “Freezing” anchors (welding, etc.). Installing adaptors and flashings. Sealant application. Installation of insulation. Installation of partition closer panels. Final check of completed installation.

14

Installation Procedures Special Products

Suspended Glass Fronts

Layout procedures: installation of suspension brackets and perimeter framing. Hanging of glass. Patch fittings. Special door hardware and mounting procedures. Supporting glass fins. Installation of weathering. Sealing procedures. Protection methods. Replacement procedures.

   

Stuck Glass Fronts

Layout procedures. Installation of concealed or exposed perimeter framing. Glass stiffeners (one side or both sides). Finishing glass joints. Protection methods. Replacement procedures.

   

Auto Glass

Use of National Auto Glass Specifications Parts Book. Identification and selection of bent glass parts (toughened or laminated). Cutting and edgework procedures for laminated flatstock to N.A.G. specifications. Damaged light removal procedures. Installation and sealing of new parts. Use of specialized tools, lubricants and sealants.

   

Art Glass

Designing; use of cartoons (patterns). Cutting, waxing-up, etching, painting, firing, procedures and techniques. Additional waxing-up and painting. Staining. Leading-up and soldering. Cementing and fitting into base frame. Handling and installation procedures.

   

Aquariums

Producers for construction of framed and all-glass types. Glass selection, cutting and edgework. Selection of non-toxic cements and sealants. Water pressure and weight considerations. Mechanical blocking of glass in frames.

15

Planning Procedures

Job Specifications and Changes

Reading and interpretation; work included, work excluded. Type and quality of materials, finishes and workmanship called for. Responsibility for protection, cleaning, guarantees. Specific installation instructions. General conditions. Modifications to job specifications by bulletins and addenda, change notices and change orders.

   

Job Planning

Manpower, tool and equipment requirements. Material and equipment deliveries and storage. On-site distribution of materials. Electric power requirements. Job allocation. Co-ordination with other trades through General Contractor.

   

Production Principles

Job break-down into separate operations for specialization. Elimination of unproductive motion.

R.R.O. 1990, Reg. 1058, Sched. 1.

SCHEDULE 2
GLAZIER AND METAL MECHANIC

Work Instruction and Experience

Item

Column 1

Column 2

Column 3

 

Course

Subject

Work Instruction and Experience

1

General Trade Practice

General

Safety rules and removal of all safety hazards. Use of hand and power tools and equipment, glass handling devices and equipment, measuring and marking tools, fastening devices. Benchwork and cutting-table operations. (As detailed in Schedule 1).

2

Glass

Glass Facts

Familiarization with glass composition and properties. Maximum glass sizes. Manufacturing processes.

   

Glass Function and Recognition

—Transparent, translucent and opal glasses. Special purpose types: wired, laminated, heat absorbing, heat reflecting, and lead-plate glasses. Prismatic glass. Cladding (Spandrel) glasses. Miscellaneous glasses; factory sealed units, veneer and structural glasses, blocks and channels, corrugated glass. Mirrors: plate, sheet and transparent one-way types.

   

Glass Preparation

Familiarization with cutting tolerances. Chipping and nipping, notching. Edgework: grinding, polishing, mitering, levelling. Glass drilling, sand blasting and etching. Bending and forming techniques.

   

Plastics

Familiarization with types, characteristics and applications. Working, handling and cleaning operations.

3

Metals

Metal Types, Properties

Familiarization with characteristics and properties: aluminum, mild steel, stainless steels, bronze and copper, alloys. Selection factors.

   

Metal Shapes and Sections

Familiarization with: sheet metal manufacturing processes: standard sizes and size limitations. Thicknesses and gauges.

     

—Formed sheet (brake-shape): size, design and thickness limitations. Economics vs. braking.

     

—Extrusions: permissible tolerances, relative strength and appearance.

   

Surface Finishes and

Familiarization with: mechanical finishes,

   

Protective Coatings

—Electrolytic and chemical finishes: Colour matching, surface hardeners.

     

—Paint finishes: lacquer and baked enamel.

     

—Ceramic and porcelain-enamel glaze finishes. Touch-up procedures.

     

—Temporary surface protectors and removal techniques.

4

Glazing Materials

Sealants and Glazing Materials

Properties. Safety precautions: fumes, toxic action, fire hazards.

   

Conventional Glazing Materials (Knife grade and

—Oleo-resin compounds: wood and metal sash putty. Synthetic resin compounds: wood and metal mastics.

   

tapes)

—Butyl-rubber compounds: preformed tape (including reinforced types). Polybutene mastics and polyisobutelene tapes.

   

Sealant Types (Gun grade, 1-part and 2-part)

Oleo-resin compounds. Synthetic resin, polybutene, liquid polymer acrylic­base, butyl rubber and urethane compounds. Polysulphide, silicone rubber and acrylic types. Primers and surface conditioners. Back-up materials. Shelf life, pot life and curing time. Dry-glazing materials: roll-in splines and U-channel gaskets. Structural gaskets. Stripping.

   

Glazing Accessories

Setting blocks. Spacers. Glazing clips. Special purpose clips.

   

Joint Preparation

Surface preparation: dry cleaning, or wet cleaning. Priming. Surface conditioning. Joint back-up.

   

Material Selection Preparation and Application

Selection factors: mixing, stirring. Heating as required. Selection and preparation of applicators. Material application. Cleaning applicators and material surfaces. Site clean-up.

5

Adhesives

Adhesive Selection and Usage

Characteristics; glass veneer mastics, mirror mastics; epoxy, contact and plastic cements. Selection factors; application methods.

6

Glass Cements

Cement Selection

Familiarization with: one-part and two-part glass cements. Pointing compounds. Selection factors. Handling and mixing procedures. Pot life. Safety precautions: fire and physical hazards. Installation of showcases, all­glass entrances and stuck-glass fronts.

7

Hardware and Operating Equipment

Door Hardware

Familiarization with types and characteristics: door hinges and pivots. Locks and operating hardware. Thresholds and guards. Kick-plates. Buggy-bumpers and guard rails. Finger guards. Door stops. Wind arrestors, chains, door co­ordinators. Weathering. Astragals. Door closers: (manual types) including balanced, revolving (manual or electric assist); automatic types: pneumatic, hydraulic, electric, power or spring closing action; high or low pressure systems. Door controls: carpet and hardware controls: Photo-electric cells; radiowave controls; pullcord switches; control boxes. Sliding door hardware. Door locks and bumpers. Fly-screen hardware.

   

Showcase Hardware

Sliding door track and guides. Locks. Finger pulls. Standards and shelf brackets. Counter posts.

   

Window and Sash Hardware

Friction stays and hinges. Sash locks and balances. Manual remote controls.

   

Miscellaneous Hardware

Mirror clips. Rosettes, glass mitre clamps. Threeway clamps.

8

Installation Procedures Glazing

Face Glazing

Wood and metal sash: squaring and plumb checks. Cleaning. Priming. Bedding: face and edge clearance. Setting-blocks and spacers. Glass holding: use of clips wedges and points. Facing and stroking off. Filling voids. Excess compound removal.

   

Stop Glazing

Wood and metal sash (fixed and opening): squaring and plumb checks. Cleaning. Priming. Application of snap-on or screw-on stops. Bedding; use of compound, preformed tapes. Setting blocks and spacers. Sealing heel and needle bead neoprene or vinyl glazing strips.

   

Dry Glazing

Glazing-in rolled store front sections (glass to metal). Glazing-in extruded sections (neoprene or vinyl strip). Preparation of opening. Setting blocks. Application of stops (screw-on or snap-on). Application of glazing strips.

   

Gasket Glazing

Checking openings and sashes.

     

—Gasket selection. Setting glass. Placing locking strips.

   

Glass Veneers

—Wall preparation and checking. Surface conditioning (dry wall). Layout.

     

—Placing supporting clips and retaining moldings. Cutting, nipping, arrissing and back-chipping glass. Mastic application, backspacing and coverage. Setting glass veneer, pointing joints and cleaning.

8

Installation Procedures Glazing

Mirrors

Alignment and installation of wood or metal framed, tamper-proof or unframed types: mirror sliding doors, one-way mirrors and mirrorflex.

   

Showcases

Measuring and installation. Use of clamps or moldings, adhesives and sealants.

   

Sliding Glass Doors (Unframed)

Measuring and installation of tracks, finger pulls and locks.

   

Shelves

Use of brackets and standards. Size limitations.

   

Counter Partitions

Use of counter posts. Provision of speak-holes and covers, pay-holes and covers.

   

Table Tops

Measuring and pattern making.

   

Curtain Walls

Planning and layout. Hoisting and placing glass on floors. Preparation of openings. Setting vision and spandrel glass: use of swing-stage. Condensation drainage and venting. Application of pressure plates, stops, and finishing trims.

9

Installation Procedures Metal

Store Fronts (Rolled Sections and Brake Shapes)

On-site layout of sill sections, head and side jambs, sash (full and half), division, corner and muntin bars. Stops, caps, awning boxes and hoods, canopies. Installation, setting and protection.

   

Extruded Frames (Including Swinging Doors)

Job-site checks and measuring. Frame layout and fabrication: jig and template use. On-site assembly and frame installation. Hanging, glazing and adjusting doors.

   

Non-operating Hardware

Installation of hinges, pivots, push and pull door hardware, locks, cylinders, flush-bolts and keepers. Panic hardware. Door hold-open devices, bumpers and wind-arrestors. Thresholds and kick-plates. Door stops, astragals and finger guards. Buggy-bumpers and guardrails. Friction stays, sash locking devices and weathering devices. Layout: use of jigs and templates. Final adjustment.

   

Operating Hardware (Manual)

Layout and installation of floor concealed (offset, centre-hung, single and double acting closers), overhead (surface mounted or concealed, door or transom mounted) closers. Balanced and revolving door types. Use of jigs and templates. Final adjustments.

   

(Automatic)

Layout and installation of electric pneumatic and hydraulic types. Controls: carpet, photo-electric, radio wave, pull-cord switches and control boxes. Final adjustments: use of test equipment.

   

Wall Facings

Installation and protection of wall facings formed from flat aluminum sheet, metal brake shapes, extruded or rolled sections. Solid or hollow panels. Plastic window walls and sky-lights.

   

Sliding Doors (Manual)

Installation and protection of residential patio and commercial store front doors. Tub and shower enclosures. Mirror sliding doors.

   

Window Frames

Punched, strip (horizontal or vertical) (fixed or opening) (top, bottom or side hung), (inward or outward opening) or sliding (horizontal or vertical), insulated or non-insulated, inside or outside glazed (single or double). Layout, assembly and installation of sills, drip deflectors, expansion joint covers, anchors, blocking, base frames, fasteners, expansion mullions, opening sashes and related hardware. Sealant application.

   

Curtain Wall

Checking wall components. Establishing lines, levels and grade marks: layout and presetting anchors. Preassembly of wall components. Installation and alignment of wall grid. “Freezing” anchors (welding, etc.). Installing adaptors and flashings. Sealant application. Installation of insulation and partition closer panels. Completed installation check.

10

Installation Procedures — Special Products

Suspended Glass Fronts

Layout and installation of suspension brackets and perimeter framing. Hanging glass. Patch fittings. Special door hardware mounting. Supporting glass fins. Installation of weathering. Sealing operations. Replacement operations.

   

Stuck Glass Fronts

Layout and installation of concealed or exposed perimeter framing. Glass stiffeners (one side or both sides). Finishing glass joints. Protection. Replacement operations.

   

Auto Glass

Identification and selection of glass parts (toughened or laminated). Cutting and edgework of laminated flat-stock to National Auto Glass specifications. Damaged light removal. Installation and sealing of new parts.

   

Art Glass

Designing. Cutting, waxing-up, etching, painting, firing operations. Additional waxing-up and painting. Staining. Leading-up and soldering. Cementing and fitting into base frame. Handling and installation.

   

Aquariums

Construction of framed and all-glass types. Glass selection, cutting and edgework. Use of non-toxic cements and sealants. Blocking glass in frames.

R.R.O. 1990, Reg. 1058, Sched. 2.