The Effect of Green Roof as Rice-Planting Media Towards Indoor Climate

Abstract

The declining number of green areas especially rice fields lately encourages architects, urban planners, also researchers to maximize the existing spaces as new agricultural land. The green roof system is one of the alternative solutions to the problem of green area conversion. However, the green roof systems can affect the indoor microclimate of the building. According to Sadiq Abubakar Gulma’s research there are differences in relative humidity and temperature between the green-roofed building and normal roofed building. This study discusses the thermal impact on indoor microclimate caused by the green roofs, especially the ones which are used as a rice-planting media. The method used in this study was an experimental-descriptive method that was done by creating 3D space models using green roofs as rice planting media which then would be compared with 3D space models using ordinary green roofs. Microclimate data measurement in buildings was done using Energy Plus software. Mean Radiant Temperature is used as the main indicator data in this research because it is the indicator of heat radiation transfer between environment heat into the indoor trough the building envelope. Based on the data collected, there is a difference between the model using the ordinary green roof and the green roof as rice-planting media. The ifference in the use of the green roofs on both models affects its indoor microclimate.