New Glass Paint that may keep roofs cool

I keep coming across articles where scientists develop new stuff, and in most cases the utility of the research or the development is not very clear.

For a change, this time they have developed something that sounds pretty useful. A glass based paint that can keep the painted surface cool, and is expected to be more durable than normal paints. It is still under development and the product may take nearly 2-3 years to actually reach the market, but it still sounds as if it is worth the wait.

The development was focused on creating a more durable paint for cars and houses, but the uses could be many. They suggest that it might be used on roofs to keep homes cool - a very helpful result if it becomes possible.

As per the article, sunlight bounces off the metal surfaces with the paint and that's how it is supposed to remain cool and last long as well. Based on silica, it is also expected to be affordable - another wow factor.

I wonder if everything in a room was painted with this paint that bounced off sunlight and there was nothing else to absorb the sunlight and heat, whether it would increase the temperature in the room? Well, the experts can think over the environmental impacts. 

Meanwhile I think we should plant more trees by the time such products hit the market; just in case.

Link: http://focusnews.com/tech-gadgets/scientists-come-up-with-new-glass-paint-to-keep-metal-roofs-cool-and-durable/111112/