Developed for a range of audiences to help speed a transition to cool roofs and pavements, this guide covers the climate benefits of cool roofs, cool roofs economics, and various program and policy options.
The ordinance requires low-slope roofs to have a minimum three-year solar reflectance of 0.63 and a thermal emittance level of 0.75. Steep slope roofs must have a minimum three-year solar reflectance level of 0.20 and thermal emittance of 0.75.
This 2010 bill requires cool roofs on new commercial low-sloped buildings.
The Cool Roof Toolkit project has developed a model local ordinance requiring that roofs have a certain solar reflectiveness.