Abstract:

Climate change in our country is one of the most important matters of the day. In the western and southwestern part, in addition to the temperature increase experienced by the influence of the existing city heat island, the temperatures are expected to increase significantly, especially in the summer months. The increase in temperature will also increase the demand for cooling energy in buildings. One of the strategies applied as an adjustment to climate change is the planted roof system (BCS). Half of the roof of about 100 million m2 covered annually is used as a roof cover material, while the rest is used as a mineral covered bitum cover. Despite the knowledge of the benefits that the CIS provides in the context of climate change, the reason for its limited number of implementations is the fact that existing systems are introduced to use from abroad as "package systems" and not adapted to local environmental conditions in the systems due to early damage caused by heat and moisture. At the Istanbul Technical University (ITU), the main objective is to develop planted roof systems compatible with the environment. One of the sub-objectives of the project is to experimentally demonstrate the performance of the existing roof system (MCS) and the system formed as a result of the improvement of the existing roof system in the real service conditions in Istanbul and to evaluate the performance in comparison. It has been built with ITÜBCS and it is equipped with the necessary measurement tools. According to the initial results of the study, in the spring season the surface was not yet fully covered by the plant with the solar radiation reflection rate of the plant was approximately the same. During the day, in the afternoon, the surface temperature values were lower than the surface temperature values. It has balanced the internal environment temperature values in high air temperature values with the heat mass effect.

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