Non-Combustible Aluminium Decking: The Low-Maintenance Outdoor Solution

When designing outdoor spaces for modern buildings, the right decking system can make all the difference. Safety, aesthetics and long-term performance are essential — especially for high-rise balconies, terraces and podiums.

That’s why non-combustible aluminium decking has become one of the most sought-after choices in contemporary architecture. Offering strength, durability and effortless maintenance, it’s the perfect solution for environments where safety and style go hand in hand.

At Wallbarn, our non-combustible decking systems are designed to meet the latest building standards while providing a sleek, modern finish that endures.

Meeting Today’s Fire Safety Regulations

In recent years, the UK construction industry has undergone major changes to building regulations surrounding external materials. Approved Document B now mandates that external wall and balcony surfaces above 18 metres must be made from non-combustible materials.

This means traditional timber and composite decking systems are no longer suitable for high-rise developments. Aluminium decking, however, provides a Class A1 fire rating, ensuring full compliance with these strict safety requirements.

Wallbarn’s aluminium systems are completely non-combustible, offering specifiers peace of mind and helping developers meet both regulatory and insurance obligations.

Built for Strength and Stability

Aluminium is widely recognised for its impressive strength-to-weight ratio. Despite being lightweight, it offers outstanding structural rigidity, making it ideal for high-traffic areas such as rooftop terraces, balconies and commercial podiums.

Wallbarn’s aluminium decking systems are precision-engineered for long-term performance. They will not rot, warp or swell — even in challenging weather conditions — and are resistant to corrosion, frost and UV exposure.

Because aluminium expands and contracts less than most other materials, it maintains dimensional stability, ensuring clean lines and a flawless finish for years to come.

Low Maintenance, High Reward

One of the biggest advantages of aluminium decking is its minimal maintenance.

Unlike timber decking, which requires ongoing treatments, sanding and resealing, aluminium decking retains its finish with little more than occasional cleaning. There’s no need for staining, varnishing or repainting — simply wash the surface periodically to remove debris and maintain its appearance.

This makes aluminium decking an excellent long-term investment, particularly for property managers, developers and building owners seeking to reduce lifecycle costs.

Sleek, Contemporary Design

Aesthetics are a defining feature of modern outdoor spaces. Aluminium decking provides a clean, architectural look that complements both contemporary and traditional developments.

Wallbarn’s systems feature a subtle brushed finish with elegant linear profiles that echo the natural grain of wood. Available in a variety of tones and textures, aluminium decking allows specifiers to achieve a tailored appearance that enhances the overall design of the building.

For a coordinated finish, aluminium decking can be paired with Wallbarn’s Class A substructure systems, creating a seamless transition from structure to surface.

Long-Term Durability

Durability is key for any outdoor installation. Aluminium decking is naturally resistant to rot, insects and mould — problems that often affect wood or composite alternatives. It also withstands extreme weather, from intense sunlight to heavy rain and frost, without degradation.

Because it does not absorb moisture, aluminium decking maintains its appearance and performance in all seasons. This makes it especially well suited to coastal developments and exposed roof terraces, where salt and humidity can challenge other materials.

Environmentally Responsible Choice

Sustainability is a growing priority in construction. Aluminium is a 100% recyclable material, and the majority of modern aluminium production uses recycled content — reducing its environmental footprint considerably.

At the end of its service life, aluminium decking can be fully reclaimed and reused without any loss of quality. Combined with its long lifespan and low maintenance needs, it represents an eco-conscious choice for environmentally responsible design.

Wallbarn is committed to sustainable manufacturing and logistics, supporting clients in achieving their BREEAM and ESG objectives through innovative product development.

Simple Installation and Integration

Wallbarn’s aluminium decking systems have been designed with installer convenience in mind. The boards integrate perfectly with our range of adjustable pedestals and support systems, allowing for fast, level and secure installation.

These modular systems not only reduce installation time but also ensure drainage efficiency and easy access to rooftop membranes or services below.

Because aluminium decking is lightweight, it places minimal load on the structure — a major benefit for roof terraces and balconies where weight restrictions apply.

Perfect for a Range of Applications

Thanks to its strength, stability and compliance, non-combustible aluminium decking is suitable for a wide variety of applications, including:

• Rooftop terraces and podium decks

• Residential and commercial balconies

• Garden walkways and courtyards

• Public and leisure areas

• Hotels and hospitality developments

Its versatility makes it a leading choice for architects and contractors seeking a single, compliant solution for multiple building types.

The Complete Wallbarn System

Choosing Wallbarn means more than selecting a decking surface — it means specifying a fully integrated, high-performance system.

Our non-combustible aluminium decking works seamlessly with MetalPad EX and A-Pad pedestal supports, creating a unified build-up that ensures full Class A fire performance from the substructure to the surface.

With Wallbarn, specifiers and installers benefit from:

• Decades of experience in rooftop and decking innovation

• Technical support at every stage of the project

• Reliable UK-based stock and responsive logistics

• Products tested and certified for total compliance

This combination of expertise and quality assurance has made Wallbarn a trusted partner for leading construction firms and architectural practices nationwide.

Final Thoughts

As outdoor living spaces continue to define modern architecture, the need for safe, durable and low-maintenance decking systems has never been greater.

Wallbarn’s non-combustible aluminium decking provides an elegant solution that balances cutting-edge performance with refined design. Lightweight, sustainable and fully compliant, it’s the go-to choice for high-rise projects, rooftop spaces and any environment where safety and longevity are paramount.

To explore our full range of non-combustible decking solutions, or to discuss your upcoming project, contact Wallbarn’s expert team today.