Prof. Junqiao Wu was interviewed on ABC7 News about "smart roof" coatings that can help regulate household temperatures without consuming natural gas or electricity. Prof. Wu's work, highlighted here, is based on work published in the journal Science where they used the metal-insulator transition in tungsten-doped vanadium dioxide to create window glass and a rooftop coatings that respond by turning off their radiative properties - releasing more heat when it is hotter and retaining more heat when it is cooler.