Signal California's Energy Code and China's Dual Carbon policy have written the technology into law

Summary

The report observes that two of the world's largest building markets have already written passive radiative cooling into law. California's Energy Code requires cool roof materials on most commercial and high-rise buildings. China's Dual Carbon policy has incorporated the technology into national green building standards. This regulatory pull has drawn chemical majors such as Arkema and Solvay into the supply chain. It has also helped manufacturing move from complicated laboratory processes to ordinary industrial coating and film production. The case shows how codes and standards can accelerate adoption, a point the outlook later reinforces by noting that most jurisdictions still do not recognize the technology.