Introduced in 2026 as an upgrade to the established ROBUST steel system, Colordur delivers an optimised surface, enhanced detailing, and improved UV resistance for superior durability and long‑lasting performance. Combined with easy installation and a refined appearance, Colordur builds on our proven intuitive plug‑in connection system, offering a complete, future-ready roof drainage solution. All of these advancements are available at the same price as the ROBUST system, making Colordur a highly cost‑effective choice for projects of every scale and style.
Modern Colour Finishes: Roof drainage as a design element. Seven modern colours, high quality surface text, and lasting colour fastness.
Systematic Design: A well thought-out, complete system, consistent colour and material quality
Reliable & Durable: Resistant to UV radiation according to RUV 4 and corrosion up protection class RC4.
Robust Material Structure; Zambelli COLORDUR DX53 steel, zinc-magnesium coating (ZM120) with double sided colour application.
Sustainable Material: Excellent energy & environmental performance
Fast & Easy Installation: Proven, intuitive plug-in and connection systems
This vibrant system elevates roof drainage beyond pure functionality, transforming it into a considered design element for both heritage and contemporary architecture. Available in five modern colours with a high‑quality textured surface and enduring colour stability, Colordur launches with Black and Anthracite available for next‑day delivery, while Dark Brown and White Aluminium are offered with extended lead times. We are also delighted to introduce a bold new addition to our colour‑coated steel portfolio: a striking Grey finish.

Colordur’s performance is defined by a two‑layer paint coating system: a primer and topcoat engineered for excellent forming properties and exceptional weather resistance. This sits atop a cutting‑edge zinc‑magnesium ZM120 coating, ensuring reliable protection. As a result, the system is suitable for environments up to corrosivity category C4, provided it is installed more than 3 km from coastal or saltwater areas. Its robust coastal suitability is supported by a market‑leading 25‑year warranty, extending beyond the 20‑year coverage of its ROBUST predecessor.

To complement the updated system, Colordur introduces modernised hoppers available in two distinct styles for maximum design flexibility: a square model offering a sleek, seamless appearance, and a cubic model delivering a minimalist, contemporary aesthetic.
Colordur is now available to buy on our website. Complete your system with a extensive range of gutters, fittings, downpipes and hoppers.

