Green Roof to Overcome Urban Heat Island Effects in the Center of Semarang

Abstract

Climate change and urbanization are the main problems of the city that have caused the Urban Heat Island effect (UHI). A green roof that utilizes the building roof as a green space can overcome the UHI effects. Green roof is also an efficient solution in the procurement of green spaces in crowded cities. In 2019, Semarang City Mayor released regulation No. 24 of 2019 concerning Green Building that makes the focus of Semarang City development is to improve the urban environment. This research area is in two road corridors of Semarang City, Pandanaran and Pemuda roads. This study aims to examine the application of green roofs in these two corridors. Several identifications were carried out, first identifying building characteristics, second identifying opportunities for applying green roof, and third identifying building area capable of applying green roof. Primary data collection through field observations and satellite imagery as well as through questionnaires to the community who conduct activities in two roads corridors. The results of this study are the total roof area of 96,484m2 from 30 buildings on Pandanaran road and 23 buildings on Pemuda road that can become new green spaces to overcome Urban Heat Island effects.