Kerala is in the tropical region and is expected to get plenty of rains. The rains support the growth of trees and plants which are important to maintain a comfortable climate in Kerala. However, with the rapid increase in urbanization and the rains playing hide-and-seek, Kerala is moving at a faster pace to an uncomfortable climate zone. We get a large amount of sun’s radiant heat, high level of humidity and sunny days throughout the year. This leads to unbearable heat inside buildings. To beat this challenge of heat reduction in houses in Kerala, we most often think only about fans, air-coolers and air conditioners.