Standing seam roofing has become a popular choice for architects, builders, and property owners looking for a combination of architectural appeal, durability, and design flexibility. Unlike conventional roofing systems, standing seam panels can create clean, uninterrupted lines across roofs and façades while concealing the majority of fixings.

One of the most important decisions when specifying a standing seam system is choosing the right metal. Zinc, copper, aluminium, COLORBOND®, and Corten steel can all produce distinctive results, but each material has different characteristics.

Understanding these differences can help you select a standing seam roofing material that suits your project's appearance, location, performance requirements, and budget.

What Is Standing Seam Roofing?

Standing seam is a flat-tray metal roofing and cladding system featuring raised seams between panels. The system uses concealed clips and fixings, allowing the panels to accommodate expansion and contraction.

Roofing Group's standing seam system uses a raised 25mm seam and can be manufactured with customised panel widths. The system can be used for roofing, wall cladding, and soffits, with double-lock standing seam generally used for roofing and single-lock standing seam for wall applications.

This flexibility makes standing seam suitable for both contemporary and more traditional architectural projects.

Zinc Standing Seam Roofing

Zinc is widely recognised for its distinctive appearance and ability to develop a natural protective patina over time.

VMZINC used by Roofing Group is composed of high-quality zinc alloyed with copper and titanium. According to Roofing Group, zinc systems can have an expected lifespan of approximately 50–80 years depending on location.

One of zinc's major attractions is that its appearance changes naturally as it ages.

Why Choose Zinc?

Zinc can be particularly suitable for projects where the architect wants:

• A refined architectural appearance

• Natural ageing and patination

• Long-term durability

• Low maintenance requirements

• Contemporary or heritage-inspired aesthetics

It can also be used for complex architectural forms and curved applications.

Copper Standing Seam Roofing

Copper provides a very distinctive appearance and changes significantly as it weathers.

Fresh copper has a bright metallic appearance, but exposure to the elements gradually produces a protective patina. Depending on the environment and age, this can develop into brown, green, or blue-green tones.

Roofing Group lists copper standing seam with an expected lifespan of approximately 70–100 years depending on location.

Why Choose Copper?

Copper may be appropriate when a project requires:

• A premium architectural finish

• A material that develops character over time

• Long service life

• Strong visual contrast

• A distinctive heritage or contemporary aesthetic

Copper can work particularly well on prestige residential properties, cultural buildings, hospitality projects, and architecturally significant developments.

Aluminium Standing Seam Roofing

Aluminium offers a lightweight option for architectural roofing and cladding.

Roofing Group uses European-produced aluminium for its panel systems and states that its aluminium is available with a PVDF paint system. The company lists an expected lifespan of approximately 40–60 years depending on location.

Aluminium can also be useful where a project requires custom panel configurations and architectural flexibility.

Why Choose Aluminium?

Aluminium can be considered for:

• Lightweight architectural applications

• Contemporary roofs

• Complex façade designs

• Projects requiring colour flexibility

• Corrosion-resistant applications

Its ability to take different finishes also makes it suitable for modern architectural designs.

COLORBOND® Standing Seam Roofing

COLORBOND® steel is a familiar material in Australian construction and can provide a practical combination of appearance and performance.

Roofing Group states that its COLORBOND® steel is manufactured in Australia to relevant Australian Standards, including AS1397 and AS/NZS 2728. The company also highlights the range of available colours, including the COLORBOND® steel Matt range.

Why Choose COLORBOND®?

COLORBOND® can be a good option when you want:

• A familiar Australian roofing material

• A wide range of colour choices

• Contemporary architectural styling

• A steel-based roofing solution

• Compatibility with modern residential and commercial designs

It can be particularly effective when the roof needs to complement other architectural elements such as timber, brick, concrete, glass, or masonry.

Corten Standing Seam Roofing

Corten, commonly referred to as weathering steel, offers a dramatically different aesthetic from traditional coated metal roofing.

Instead of maintaining a conventional painted appearance, Corten develops a stable rust-like patina when exposed to weather. Roofing Group describes this protective surface as part of the material's weathering characteristics.

Why Choose Corten?

Corten may suit projects looking for:

• A natural weathered appearance

• Strong architectural character

• Industrial-inspired design

• Contrast against concrete or glass

• A distinctive façade or roof finish

It can be especially effective in projects where the roof or façade is intended to become a prominent architectural feature.

How Should You Choose the Right Material?

There is no single best metal for every standing seam project.

Instead, the selection should consider several factors.

1. Project Location

The environmental conditions around the building can influence material selection.

Consider factors such as:

• Coastal exposure

• Humidity

• Rainfall

• Industrial environments

• Temperature

• Sun exposure

Your roofing specialist should assess the location and recommend suitable materials and specifications.

2. Architectural Appearance

Think about how you want the building to look immediately after installation and how you want it to look years later.

Zinc and copper naturally develop patina, while COLORBOND® provides a more consistent manufactured finish. Corten is intentionally selected for its weathered appearance.

3. Roof Shape

Standing seam can accommodate more than simple straight roof planes. Roofing Group states that its system can accommodate tapered, curved, convex, and concave forms, depending on the design.

The geometry of your roof should therefore be considered when selecting both the material and panel configuration.

4. Maintenance Expectations

Different metals have different weathering characteristics.

Understanding how the material changes over time can help you choose a roof that matches your expectations for appearance and maintenance.

5. Budget and Long-Term Value

The initial material price is only one consideration.

A roofing decision should also account for:

• Expected service life

• Maintenance

• Installation complexity

• Material wastage

• Architectural requirements

• Long-term appearance

A higher initial investment may be justified when the material provides the desired performance and architectural result over the building's lifetime.

Why Professional Standing Seam Design Matters

Standing seam roofing is highly dependent on correct detailing.

Panel dimensions, substrate, underlay, clips, ventilation, roof pitch, penetrations, and expansion allowances all need to be considered during design and installation.

Roofing Group specifies a minimum 3-degree pitch for its standing seam roofing system and uses fixed and sliding stainless-steel clips to accommodate panel expansion and contraction.

Working with a specialist early in the design process can therefore help architects and builders identify technical requirements before construction begins.

Final Thoughts

Choosing a standing seam roofing material should involve more than selecting a colour.

Zinc, copper, aluminium, COLORBOND®, and Corten each offer different visual and performance characteristics. The right choice depends on the building's location, design, roof geometry, desired appearance, maintenance expectations, and long-term objectives.

A specialist architectural roofing and cladding company can help evaluate these factors and determine the appropriate standing seam system for your project.

For architects, builders, and property owners considering architectural metal roofing in Australia, standing seam provides the flexibility to create clean, durable, and highly customised roof and façade designs.