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In tropical countries rooftop greenery is more sympathetic to the prevailing climate and provides comfortable indoor environment. This paper analyses the above hypothesis on a 10 storied residential apartments in Universiti Teknologi Malaysia (UTM). The analysis of actual performance of the rooftop greenery can provide the information on effectiveness of its application on contemporary houses for tropical climate in Malaysia. Empirical studies have been performed an internal and external roof surface, where temperature and air temperature were measured for a period of three days in two phases. The first phase of measurement was carried out when the rooftop was empty. After the rooftop greenery was built then the second phase of measurement was conducted. Expected findings of the research are that the green rooftop will tend to experience lower surface temperature than the original exposed roof surface. So this research work will provide an introduction or preliminary guide line for thermally responsive architecture on the basis of thermal performance of the rooftop greenery system. Temperature is the main criteria of human comfort. To provide an indoor comfortable environment through the greening of the rooftop of the building is more appropriate in the tropical climate of Malaysia.

journal of architecture and built environment

THERMAL PERFORMANCE OF ROOFTOP GREENERY SYSTEM AT THE TROPICAL CLIMATE OF MALAYSIA A case study of a 10 storied building R.C.C flat rooftop at UTM, Johor Bahru, Malaysia