Specifying Colour & Finish for Roller Shutters, Roller Grilles & Bi-Fold Doors

When specifying roller shutters for commercial, retail, or industrial environments, colour and finish play a critical role in achieving both architectural cohesion and long-term performance. Beyond aesthetics, finish selection directly influences durability, corrosion resistance, maintenance requirements, and suitability for exposed or high-traffic conditions.

This guide supports architects and designers when specifying roller shutters, commercial roller grilles, and commercial bifold doors, outlining finish options that align design intent with operational demands across the life of the building.

A Guide for Architects and Designers

Choosing the right finish for roller shutters, roller grilles, and bifold doors is more than a design decision; it affects performance, maintenance, and long-term appearance. Architects and designers should consider the environment, exposure to weather, operational demands, and integration with surrounding materials when specifying finishes.

KRGS Doors offers a variety of standard and powder-coated options to suit commercial, retail, and industrial applications, helping you achieve both aesthetic and functional goals.

Standard Finish: Clear Anodised Aluminium

KRGS roller shutters, roller grilles and bi-fold doors are supplied standard in clear anodised aluminium. This finish is widely specified across commercial applications, including commercial roller grilles, due to its balance of durability, neutrality, and long-term performance.

This finish is widely specified due to its:

• Clean, neutral architectural appearance
• Excellent corrosion resistance
• Suitability for both internal and external applications
• Compatibility with modern façades, shopfronts and openings

In commercial and industrial settings, clear anodised aluminium is often specified where performance, consistency, and ease of maintenance are priorities. Its inherent resistance to corrosion makes it suitable for applications exposed to moisture, pollutants, or frequent operation, including industrial roller shutters in loading bays, service areas, and plant rooms.

For retail and mixed-use developments, the neutral finish allows commercial closures to integrate seamlessly with surrounding façade elements while maintaining security and functionality.

Clear anodised aluminium is an ideal choice where a minimal, contemporary finish is required without introducing additional colour elements.

Powder Coat Options: Dulux Duralloy®

For projects requiring colour coordination, brand alignment or a stronger visual statement, KRGS Doors offers powder-coated roller shutters, roller grilles and bi-fold doors using the Dulux Duralloy® powder coat range.

The Duralloy® range is a durable polyester powder coating system developed specifically for aluminium products used in architectural and commercial applications. It is commonly specified for industrial roller shutters and commercial bifold doors, offering reliable performance in environments where exposure to UV, weather, and regular operation demands enhanced protection.

The system provides access to a wide selection of standard colours commonly specified across retail, mixed-use and commercial developments.

Architects can view the full Dulux Duralloy® range here.

Why Specify Powder Coated Closures and Doors?

Powder coating offers several performance and design advantages, including:

• Enhanced durability and impact resistance
• Strong colour retention in exterior environments
• Improved resistance to UV exposure, weathering and wear
• Greater flexibility when matching façades, shopfronts, signage or brand colours

Powder-coated finishes are particularly suited to:

• Retail shopfronts and shopping centres
• Commercial and mixed-use developments
• Warehouses and industrial facilities
• Community and public buildings

Design Considerations for Architects

When selecting a colour or finish for roller shutters, roller grilles or bi-fold doors, architects should consider:

• Overall façade composition and adjacent materials
• Light versus dark colours and heat absorption in exposed locations
• Consistency with Colorbond® or surrounding aluminium elements
• Visual impact when doors are open versus closed (particularly for bi-fold doors)
• Reviewing physical powder coat swatches under real lighting conditions

Early coordination with façade consultants, builders, and suppliers is recommended to ensure finish selections remain consistent across elevations and interfaces, particularly on larger commercial projects.

As with all architectural finishes, physical samples should be reviewed and approved prior to final specification, as on-screen colours may vary.

Australian-Manufactured Closures Backed by Expertise

KRGS Doors works closely with architects, builders, and commercial developers to deliver roller shutters, roller grilles, and bifold doors tailored to your project needs. With locally manufactured products and expert advice, you can confidently specify finishes that balance aesthetics and functionality.

For technical guidance, finish selection support, or specification advice, get in touch today to speak with our team of specialists.