The Investigation of Green Roof, Roof Pond and Water Spray over the Roof Cooling Potential on Single Storey Residential Building in the Indian Climate

Abstract

the phenomenon of global warming or climate change has led to many environmental issues including increasing atmospheric temperatures, increased greenhouse gaseous emissions and increased indoor discomfort. Studies have shown that bringing nature to the roof using passive cooling roof treatments may give positive impact in mitigating the effects of global warming potential and in increasing thermal comfort conditions inside buildings. In this study cooling potential of green roof, roof pond and direct evaporative roof spray as passive cooling roof treatments were conducted on a case study building in Indian climate. The results of the study shows that green roof is one of the effective cooling technique from both thermal comfort and environmental impact point of view in Indian climate. The average indoor temperature achieved underneath the green roof treated room is 28.90C and the average relative humidity levels also in the thermal comfort conditions range compared to roof pond and evaporative water spray over the roof passive treatments.