Green Roof Concepts as a Passive Cooling Approach in Tropical Climate- An OverviewNoorazlina Kamarulzaman, Siti Zubaidah Hashim, Hasnan Hashim and Alia Abdullah SalehE3S Web of Conferences, 3 (2014) 01028DOI: https://doi.org/10.1051/e3sconf/20140301028