If the 100 biggest cities in the world installed white roofs and changed their pavement to more reflective materials -- say, concrete instead of asphalt-based material -- the global cooling effect ...

Reflective roofing materials keep it cool up on the roof Unlock URL Order Reprints Gift this Article ...

These are measured on a scale from 0 to 1, where 1 is 100% reflective or emissive. The higher the decimals (eg 0.7 or 0.8), the cooler the roof. That’s called the solar reflectance index.

When summer turns up the heat, cities can start to feel like an oven, as buildings and pavement trap the sun’s warmth and ...

Cool roofs outperformed all other interventions, the team found, lowering average outdoor temperatures in the city over the two-day period by 1.2°C, and by as much as 2°C in certain locations.

Democrat Tina Smith hospitalized amid Senate's $9 billion spending cut debate ...

Painting your roof white or constructing it out of reflective materials could help reduce temperatures in dense cities. We speak to Grist staff writer Matt Simon about how "cool roofs" can save ...

New York City started requiring reflective coatings on new low-slope roofs in 2009, began including roof replacements in 2012, and strengthened the reflectivity requirement in 2019.