“The team ran a regional climate model simulating the Chicago metro area and three types of #roof: cool (painted a heat-reflecting white), green (vegetation) and solar panels.
[All] three types of roofs reduced the near-surface temperature and AC consumption demand during daytime hours when air temperature is the highest. Cool roofs reduced the near-surface temperature by 1.5 degrees Celsius, followed by 1.2 degrees for green roofs and 0.6 degrees for solar panel roofs.”
https://techxplore.com/news/2023-09-roof-material-cool-air-energy.html