COLORBOND® STEELtake your architectural dream to the sky

The development of Clean COLORBOND® steel with Thermatech® reflects NS BIueScope’s enduring qualities - innovative, superior, cutting-edge and leading. With our Thermatech® solar reflectance technology, we are helping to create a future that is comfortable not just for people, but for the environment too. Combined with Clean COLORBOND® steel’s renowned durability, colour retention and flexibility, you now have the power to shape the landscape to suit both your architectural vision and conscience.



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Thermatech®solar reflectance technology is incorporated into Clean COLORBOND® steel to lower surface temperature by adsorbing less heat from the sun. In other words, Thermatech® is able to reflect the solar heat of a roofing material.

Solar Reflectance Index (SRI) is a numerical value used to represent a constructed surface's ability to reflect solar heat. The SRI for standard black is 0 and a standard white is 100. Higher SRI values indicate a roof whose surface temperature is lower.

Thermatech® technology optimizes the thermal performance of every colour in the standard Clean COLORBOND® steel without changing their appearance therefore consumes less energy for air-conditioning and helps to mitigate the Urban Heat Island (UHI) effect.


Roofing is a key consideration when designing a building to be thermally efficient, and is essential in mitigating the Urban Heat Island (UHI) effect.

With increased global warming and government focus on climate change have directed the attention to the need for greater thermal efficiency especially in a tropical climate.

Green building rating tool such as Leadership in Energy and Environment Design (LEED) require materials with high SRI values for mitigating the UHl effect. Clean COLORBOND® steel with Thermatech® is able to provide higher SRI values thus complying to the green building requirements.

Clean COLORBOND® steel has been one of the core building materials for more than 40 years in Asia. Today, Clean COLORBOND® steel with Thermatech® is leading the innovations again thus fulfilling the needs and requirements of the building industries.

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