Berkeley Lab engineers have developed a roof coating that can keep a building ... and compared them to samples of commercial dark and white roof materials. Wireless devices measured changes ...

But doing it right involves more than buying a couple of expensive five-gallon buckets of white coating, a giant paint roller with a long handle, and climbing a ladder to the roof for a couple of ...

The coating, if used on enough buildings at once ... “Not everyone wants a white roof on their house, and paint companies have been trying to develop ‘cool colors’ for decades.” ...

In 2017, more than 3,000 city rooftops were painted using both white lime and a special reflective coating. Known simply as "cool roofing", this process is designed to reduce the solar radiation ...

But from its initial properties, when it’s clean, it’s about a 10 percent performance boost over today’s bright-white roof coatings." The findings were published April 15 in the journal ACS ...

These work. On a summer afternoon, estimates Berkeley Lab, a white roof will stay at least 31 degrees Celsius (55 Fahrenheit) cooler than a darker one. But for practical and aesthetic reasons ...

A clean white roof can stay up to 50°F cooler than ... silicone, or polyurethane roof coatings and primers. It is not a good ...

White or reflective paint is more effective at cooling cities than covering roofs in solar panels or greenery, scientists say, and could offer some relief on extremely hot summer days. Two ...

But new coatings can help buildings cool down passively. [Photo: University of Cambridge] First there was the whitest white paint, capable of sending heat from your roof into space. Now ...

In 2017, more than 3,000 city rooftops were painted using both white lime and a special reflective coating. Known simply as "cool roofing", this process is designed to reduce the solar radiation ...