I have been asked by my customers a couple of times. Have you heard of ceramic paint and how much extra would you charge to use ceramic paint on exterior of my house? Never heard of it before and finally took the time to browse the Internet to find out what it is. Supposedly it is the paint that reduces the heat from the sun and cools down your house. Positive reviews of ceramic paint I found only from the people that sell it or profit from it's sale in one way or the other. From independent source I could not find anything that suggests that ceramic paint would be good for someone's house.
One of the main reasons I am so skeptical about insulating capabilities of this paint is that it is sold only on the internet. None of the retail stores carry that type of paint. If it's any good why Wal-mart, Home Depot, or Dunn Edwards doesn't have it in stock or even heard of it. Is it because after many years of not seeing any effect of this paint some of the customers would ask for their money back? Ten years from now Home Depot will be still in the same location, and how hard it is to shut down a website - one click of a mouse.
Came across an informative article about ceramic paint, thought it was well written and here is the link.