One of the most viable options of keeping your room cool is to paint the roof of your house with white paint. The white roof is fast catching up as an easy option to stay cool in hot summer. It is economical as it will save electricity.
Painting the roof of your house with white color is a great idea to beat the summer heat and it helps to keep the interiors of the house much cooler but at the same time reduces the urban heat island effect.
via White Roof Project