Corrugated Metal
Corrugated Metal in Canada: Types, Pricing, Installation, Suppliers, and Design Applications
Back in 1829, the London Dock Company architect and engineer, Henry Robinson Palmer, received a patent for “grooved or corrugated metal sheets.” These sheets have proven to be strong, lightweight, corrosion-resistant and easily transportable, making them particularly suitable for prefabricated structures. It soon became a common construction material in rural areas in the United States, Argentina, Spain and Canada. In Australia and New Zealand particularly it has become part of the cultural identity, and fashionable architectural use has become common.
Corrugated metal has long been a staple material in Canada due to its durability, structural efficiency, and adaptability to harsh climates. Originally developed for agricultural and industrial use, it is now widely adopted in residential, commercial, and architectural applications. This article provides a technical overview of corrugated metal products available in Canada, including material types, pricing, installation practices, suppliers, and common design uses.
1. Types of Corrugated Metal
Corrugated metal refers to sheet metal formed into repeating ridges and valleys to increase stiffness and load capacity. In Canada, the most common materials include:
1.1 Galvanized Steel
- Coating: Zinc (G90 or G60 standard)
- Advantages: Corrosion resistance, affordability, high strength
- Common uses: Agricultural buildings, garages, sheds, roofing, siding
- Expected lifespan: 30–50 years (longer with proper maintenance)
1.2 Galvalume Steel
- Coating: Aluminum-zinc alloy (AZ50 / AZ55)
- Advantages: Superior corrosion resistance, heat reflectivity
- Common uses: Residential roofing and siding
- Expected lifespan: 40–60 years
1.3 Painted/Prefinished Steel
- Finish: Factory-applied PVDF or SMP coatings
- Advantages: UV resistance, color stability, aesthetic flexibility
- Common uses: Architectural projects, modern residential design
- Colors: Standard and custom options available
1.4 Aluminum
- Advantages: Lightweight, corrosion-proof
- Limitations: Lower structural strength, higher cost
- Common uses: Coastal areas, decorative cladding, soffits
1.5 Weathering Steel (Corten)
- Characteristics: Forms a stable rust patina
- Common uses: Architectural facades, landscape features
- Note: Requires proper detailing to manage runoff staining
1.6 Gauge and Profiles
Typical gauges in Canada:
- 22–24 gauge: Heavy-duty, structural applications
- 26 gauge: Residential roofing and siding (most common)
- 28–29 gauge: Light-duty or interior use
Common profiles:
- Traditional round corrugation
- Box rib panels
- Custom architectural profiles
2. Pricing
Pricing varies by material, thickness, coating, and region. Approximate material-only costs (CAD):
| Material Type | Price per sq. ft. |
|---|---|
| Galvanized Steel | $1.50 – $3.50 |
| Galvalume Steel | $2.50 – $4.50 |
| Painted Steel | $3.00 – $5.50 |
| Aluminum | $4.00 – $7.00+ |
| Corten Steel | $6.00 – $10.00+ |
Installation costs typically range from $4.00 to $8.00 per sq. ft., depending on:
- Roof pitch and height
- Complexity of flashing
- Accessibility
- Regional labor rates
Metal roofing generally has higher upfront costs than asphalt shingles but offers lower lifecycle cost due to longevity and reduced maintenance.
3. Installation Practices
Canadian climate conditions strongly influence corrugated metal installation standards.
3.1 Substrate and Underlayment
- Plywood or OSB sheathing is standard
- Strapping (furring) may be used for ventilation
- Ice-and-water shield required in most provinces
- Synthetic underlayment recommended
3.2 Fastening
- Self-drilling screws with EPDM or neoprene washers
- Fastener spacing varies by wind and snow load
- Over-tightening must be avoided to prevent washer failure
3.3 Thermal Movement
- Metal expands and contracts significantly
- Slotted holes or floating clip systems used in some assemblies
- Proper detailing at ridges, eaves, and penetrations is critical
3.4 Snow and Condensation Considerations
- Snow guards may be required in high-snow regions
- Ventilation and vapor control layers reduce condensation risk
Installations must comply with:
- National Building Code of Canada (NBCC)
- Provincial amendments
- Manufacturer specifications
4. Major Canadian Suppliers
Notable corrugated metal manufacturers and suppliers include:
- Vicwest – Nationwide presence, architectural and agricultural systems
- Ideal Roofing – Ontario and Quebec focus, custom profiles
- Agway Metals – Strong agricultural and residential offerings
- Westman Steel – Prairie-based, wide product range
- Metal Sales Canada – Commercial and industrial systems
Local roll-forming companies are also common and often provide custom lengths and profiles.
5. Design and Application Uses
5.1 Roofing
- Residential homes
- Agricultural buildings
- Commercial structures
- Net-zero and energy-efficient projects
5.2 Exterior Cladding
- Vertical or horizontal siding
- Accent walls
- Rain-screen assemblies
5.3 Interior Applications
- Feature walls
- Ceilings
- Retail and hospitality interiors
- Industrial or modern design aesthetics
5.4 Architectural and Landscape Uses
- Fences and privacy screens
- Canopies and awnings
- Decorative panels
Corrugated metal is often selected for projects emphasizing durability, minimal maintenance, and modern or industrial aesthetics.
Conclusion
Corrugated metal remains one of the most practical and versatile building materials in Canada. Its strength-to-weight ratio, resistance to severe weather, long service life, and expanding design flexibility make it suitable for a wide range of applications. When properly specified and installed, corrugated metal offers both functional performance and architectural value in Canada’s demanding climate.
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