Choosing the right roofing system can have a major impact on the appearance, durability, and architectural character of a building. For projects where designers want precise lines, concealed fixings, and greater freedom with metal materials, standing seam metal roofing offers an attractive solution.

Standing seam has been used in architectural roofing and cladding for many years, and modern manufacturing techniques have expanded the range of shapes, materials, and applications available to architects and builders.

Roofing Group’s standing seam system is designed for roofing, wall cladding, and soffit applications and is available in materials including zinc, copper, aluminium, COLORBOND®, Corten, and stainless steel.

What Makes Standing Seam Different?

The defining feature of standing seam roofing is the raised connection between adjacent metal panels.

Rather than relying on exposed screws across the face of the panels, standing seam uses concealed clips. This produces a cleaner roof surface and allows the panels to move as temperatures change.

Roofing Group’s system incorporates a 25 mm raised seam and allows panel widths to be customised to the millimetre. This provides greater control over the visual proportions of the roof or façade.

Five Major Benefits of Standing Seam Metal Roofing

1. Concealed Fixing System

The absence of visible fasteners is one of the defining characteristics of standing seam roofing.

Concealed stainless-steel clips secure the panels while helping accommodate thermal movement. Fixed and sliding clips can be used depending on the requirements of the installation.

This creates a streamlined appearance that works particularly well with minimalist architectural designs.

2. Customisable Panel Widths

Every architectural project has different proportions. A standard panel width may not always produce the desired appearance.

Standing seam allows panel widths to be customised. Roofing Group lists panel widths ranging from 100 mm to 600 mm for several of its available materials, while COLORBOND® is listed with widths from 100 mm to 530 mm.

This allows designers to control the rhythm of seams across a roof or wall.

3. Multiple Installation Directions

Standing seam is highly flexible from a design perspective.

Depending on the material and application, panels can be installed:

• Vertically

• Horizontally

• Diagonally

• Along curved surfaces

This flexibility makes the system useful for both straightforward roof designs and more complex architectural façades.

4. Suitable for Roofing and Cladding

Standing seam is not simply a roofing product.

The system can be used as double-lock standing seam roofing and single-lock standing seam wall cladding. The two systems can also work together to create continuous architectural lines between a building’s roof and walls.

This makes standing seam particularly useful for projects where the roof and façade need to appear as one coordinated design.

5. Wide Material Selection

Architects can select a metal based on the desired appearance, performance requirements, project environment, and budget.

Roofing Group offers standing seam systems in:

• Zinc

• Copper

• Aluminium

• COLORBOND®

• Corten

• Stainless steel

Each material provides a different visual character.

Zinc Standing Seam

Zinc is widely associated with premium architectural design. VMZINC develops a natural protective layer as it ages, creating a changing appearance over time.

Roofing Group states that its VMZINC standing seam material has an expected lifespan of approximately 50–80 years depending on location.

For architects seeking a contemporary material that develops character naturally, zinc can be an excellent choice.

Copper Standing Seam

Copper offers one of the most distinctive finishes available for architectural roofing.

As copper is exposed to the atmosphere, it naturally oxidises and develops a protective patina. Its colour can evolve over time, creating a living architectural finish rather than a static surface.

Roofing Group states a lifespan of approximately 70–100 years depending on location.

Aluminium Standing Seam

Aluminium provides a lightweight option for architectural roofing and cladding.

Roofing Group uses a PVDF paint system on its aluminium panels, with a minimum paint thickness of 27 microns. Aluminium standing seam can be used where designers want a controlled architectural finish combined with the benefits of a lightweight metal system.

COLORBOND® Standing Seam

COLORBOND® steel is a familiar material in Australian construction, but its application in standing seam systems allows it to take on a more refined architectural appearance.

Instead of the traditional exposed-fastener approach, COLORBOND® can be incorporated into a concealed-fix standing seam design.

Roofing Group states that its COLORBOND® material is manufactured to Australian Standards including AS1397 and AS/NZS 2728.

Corten Standing Seam

Corten provides a completely different aesthetic.

Its weathered surface creates a distinctive rust-like appearance that can complement concrete, timber, glass, stone, and landscaped environments.

For architects looking to create a strong connection between a building and its natural surroundings, Corten standing seam can be an interesting design option.

Technical Considerations

Standing seam should not be selected based on appearance alone. The underlying structure and installation details are important to achieving the intended result.

Roofing Group specifies continuous support structures with a maximum 600 mm spacing and a minimum 3-degree roof pitch.

The installation also requires appropriate substrate and underlay systems. Standing seam clips are installed at maximum 300 mm spacing, with fixed and sliding clips helping accommodate thermal expansion and contraction.

Ventilation requirements should also be considered. For VMZINC installations using plywood substrate, Roofing Group specifies a continuous 40 mm air gap beneath the plywood.

Managing Oil-Canning

Architectural metal panels can sometimes display a visual effect known as oil-canning, which appears as subtle waviness across flat metal surfaces.

The degree of oil-canning can vary depending on factors such as panel length, colour, alloy, material thickness, substrate conditions, and sunlight exposure.

This is primarily an aesthetic characteristic rather than an indication that the roofing system has failed. Appropriate design, substrate preparation, material selection, and installation practices can help manage the visual effect.

Why Specialist Installation Matters

Architectural standing seam roofing requires more than simply placing metal panels on a roof.

The design must account for:

• Panel movement

• Clip spacing

• Roof pitch

• Substrate requirements

• Waterproofing

• Ventilation

• Flashing details

• Panel dimensions

• Material characteristics

• Roof and façade transitions

Working with an experienced architectural roofing specialist can help ensure these details are considered during the design and installation stages.

Roofing Group works with architects during design stages to provide expertise relating to installation and technical requirements.

Final Thoughts

Standing seam metal roofing combines a refined architectural appearance with considerable design flexibility. Its concealed fixing system, customisable panel widths, multiple material choices, and suitability for both roofs and façades make it a strong option for modern Australian architectural projects.

Whether the goal is a minimalist COLORBOND® roof, a naturally weathering Corten façade, a premium zinc building envelope, or a distinctive copper roof, standing seam provides the flexibility needed to turn an architectural concept into a practical metal roofing and cladding system.

For projects requiring custom architectural roofing or cladding, Roofing Group offers standing seam solutions across a range of materials and configurations.