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# 2019

Spectrum Lab

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A paint that passively heats and cools buildings

Spectrum is a reflective thermochromic paint that changes its colour based on temperature. It is designed to be applied to the roofs of buildings, providing a passive cooling solution and improving the building’s energy efficiency. If the outdoor temperature reaches over thirty degrees Celsius the paint becomes white, increasing its reflexivity and stopping the building from absorbing heat. Once the temperature drops, the paint returns to its usual dark tone and allows for greater absorption. It is estimated that the application of the paint to a cityscape could lower the average temperature by up to three degrees Celsius.

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