Beyond materials, planning plays a crucial role that often goes unseen. A wide roof span like that of Pondok Indah Mall 3 is not only the result of choosing steel, but also of a highly detailed design process.
Today, architects no longer rely solely on conventional drawings. Various architectural design tools help translate ideas into more precise and efficient plans.
From CAD for technical drawings, to BIM (Building Information Modeling) that integrates all building elements into a single system, to 3D visualization software like SketchUp that allows intuitive exploration of form and space.
With these tools, designs can not only be visualized but also tested—from structural simulations and span calculations to analyzing how light and circulation behave within a space.
Steel Roof Structure: Working Quietly
Behind that seemingly light span lies a structural system working silently—steel. It is not always visible, yet it defines everything.
Steel allows structures to span great distances, beyond what many other materials can achieve. Its strength and flexibility give architects the freedom to design open spaces without sacrificing stability.
In the context of modern mall roofing, steel is not just a technical choice—it becomes an essential element in creating spaces that feel wider, cleaner, and more open.
When Roofing Materials Do More Than Cover—They Protect
But structure alone is not enough. The layer above—the material we see as the roof—plays an equally important role. It is not merely a cover, but a protector against an ever-changing environment.
This is where materials like COLORBOND® steel come into play.
Interestingly, COLORBOND® Steel has now reached its 60th year as a global coated steel brand from BlueScope—a long journey that reflects how materials continue to evolve with the needs of the times.
Layers That Work Over Time
A good material is not just strong today, but resilient for tomorrow. COLORBOND® steel is designed with a layered approach, where each layer serves its own function:
Thermatech® Solar Reflectance Technology
Subtly reflects a portion of solar heat, reducing unnecessary heat entering the space.
Aluminium-Zinc Coating (AZ150–AZ200)
Provides corrosion protection—often unseen, yet critical to a building’s lifespan.
Super Polyester Paint System
Maintains color stability, as if time moves more slowly across its surface.
Clean Technology
Not just about cleanliness, but about maintaining a good appearance with minimal intervention.
A Range of Options for Different Spatial Needs
Like design itself, there is no single solution for all.
COLORBOND® steel comes in several variants, each with distinct characteristics:
- COLORBOND® Steel Ultra – for environments with high corrosion challenges
- COLORBOND® Steel XAL – lightweight and adaptive with aluminum alloy properties
- COLORBOND® Steel XPD – balanced corrosion protection for various building needs
- COLORBOND® Steel XRW – designed to help maintain a cleaner appearance for longer
- COLORBOND® Steel Matte Finish – soft, low-gloss finish (±7 G.U) that reduces glare and creates a calmer facade expression
Each variant is not just about specifications, but about how the material adapts to the spatial context it serves.
Durability That Is Not Always Visible
In commercial building projects, one key consideration is long-term performance. A good material is not only visually appealing at the beginning, but also reliable over time.
COLORBOND® steel offers:
- Corrosion resistance warranty up to 35 years
- Color durability warranty up to 12 years*
*Terms and conditions apply
More than just numbers, this represents peace of mind—that what is built today will not require constant repair in the future.
When Aesthetics and Structure Become One
Looking back at Pondok Indah Mall 3, the wide roof span is not just about engineering. It is a system—a balance of structure, material, and design working in harmony without overpowering one another.
Here, the structure does not seek attention. The material does not aim to stand out. Both serve a single purpose:
To create a space that feels larger… than it actually is.
A Space That Is Felt, Not Just Seen
In modern architecture, the success of a building is often not measured by what is clearly visible. But by what goes unnoticed.
Like a roof that feels light, even as it supports so much. Like a space that feels expansive, even though it is built with precise calculations.
And perhaps, that is where the beauty of modern mall design lies—when complexity is quietly concealed.
FAQ
Why can mall roofs span widely without many columns?
Mall roofs can achieve wide spans with minimal columns because they use high-strength steel structures. This allows longer spans with fewer supports, creating more open and flexible spaces.
What are the benefits of long spans in modern mall design?
Long spans improve visitor circulation, create a more spacious visual experience, allow flexible tenant layouts, and optimize natural lighting.
Why is steel commonly used for mall roofs?
Steel has a high strength-to-weight ratio, design flexibility, and enables faster, more precise construction—making it ideal for large-scale commercial projects.
What is the role of materials like COLORBOND® steel in mall roofing?
They protect the roof structure from heat, rain, and corrosion, maintain aesthetic quality, and reduce long-term maintenance needs.
Is metal roofing suitable for commercial buildings like malls?
Yes, metal roofing is highly suitable due to its durability, relatively lightweight nature, and ability to support wide spans without compromising structural strength.
How do roofing materials affect comfort inside a mall?
The right roofing material can reduce heat gain, maintain indoor comfort, and protect interiors from leaks or weather-related damage—directly impacting visitor comfort and operational efficiency.
