MODELLING FOR STUDY THE THERMAL CONDUCTION OF MODULAR GREEN ROOF

Abstract

Urban growth making green areas less space and causing the phenomenon of the heat island. Green roof or plant-covered roofs can help mitigate the impact of heat islands and provide insulators to prevent heat from outside the building. The performance of this green roof as a thermal insulator may change depending on the root growth in the soil. This research focuses on the thermal protection efficiency of soil and plants. From a modular concrete roof model taking into account the effect of transition from plant roots to the thermal protection of green roofs. Roof model made of concrete to simulate the rooftop concrete of the building. And there is a Bermuda grass planted on top to simulate an Extensive type of green roof, A device for measuring temperature that can be collected data are developed from the Arduino. Method of testing with temperature sensors on the top and below of the rooftop was performed to compare the thermal temperature between the interior and exterior of the building model. Compared 3 cases: 1. Concrete roof or rooftop concrete of a building, 2. A concrete roof with a soil layer with a varying amount of water in the soil and 3. Green roof or concrete roof with soil and plants covering the soil surface with consideration of different plant ages. From the results of the study, it was found that green roofs can be an insulator. Reduce the temperature inside the building more than a concrete roof by 9 degrees Celsius and found that the amount of water in the soil When there is more water in the soil, heat insulation capacity of the roof is reduced.