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EGM architecten Responsive facade designs for sustainable architecture A closer look at the design of sustainable exterior facades for a healthy and energy-efficient indoor climate The Netherlands are facing a major challenge. The National Climate Agreement states that the built environment must be completely energy-neutral by 2050 (TNO, 2021). As a result, the demand for sustainable design solutions is constantly increasing. Smart design and the use of the latest technologies, enable architects to contribute to the built environment in a meaningful way. In this research, we take a closer look at the design of sustainable exterior facades for a healthy and energy-efficient indoor climate. By adding Generative Design to the design process, we can achieve the most optimal facades that respond to the local climate and weather conditions. Utilizing passive solar energy by design During the design process, local climate and weather data is added to the developed algorithm as a parameter. With this method, it is possible to test different design solutions in their natural, site specific environment and test their performance with real climate and weather conditions. Based on the climate data of a given geo location Generative Design is added to this process to optimize the facade's performance and get the most energy efficient solution for the facade design. The goal is to generate a facade that utilises passive solar energy by design. For example, in summer excessive sunlight is blocked by using an overhang. During the winter period, the facade lets in enough sunlight to naturally light up and warm up the building. Facades tailored to the local climate and weather conditions can utilize solar radiation sufficiently throughout the year. In return, climate systems and/or air conditioning systems do not have to deploy as much, and therefore save energy. Design process for responsive facade designs - Start : we start by placing the buil...