White roofs OR garden roofs are good for insulation. -Black metal pipes for heating water in the summer -Running A/C vents inside room -Setting refrigerators

White roofs OR garden roofs are good for insulation. -Black metal pipes for heating water in the summer -Running A/C vents inside room -Setting refrigerators to take in outside air during winter -Dehumidifying and reusing dryer exhaust for heating in winter There are many hacks to buildings (homes in the list above) that can save a lot of energy per year. A little more on topic: I think white pavement would be a little too bright for comfort while driving, and oil would instantly stain it and make it look much worse than equivalent blacktop.