'Whitest ever' paint reflects 98% of sunlight [View all]
By Victoria Gill
Science correspondent, BBC News
Published1 day ago
Scientists in the US have developed a paint significantly "whiter than the whitest paint currently available".
Tests carried out by researchers at Purdue University on their "ultra-white" paint showed it reflected more than 98% of sunlight.
That suggests, the scientists say, that it could help save energy and fight climate change.
Painting "cool roofs" white is an energy-saving approach already being rolled out in some major cities.
Commercially available white paints reflect between 80% and 90% of sunlight, according to lead researcher Prof Xiulin Ruan from Purdue, in West Lafayette, Indiana. "It's a big deal, because every 1% of reflectance you get translates to 10 watts per metre squared less heat from the Sun," he explained.
More:
https://www.bbc.com/news/science-environment-56749105
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