## 5 Conclusions  
The proposed design was based on the development of a facade shading system, which featured a double function during the summer and winter. This was enabled through a dynamic movement triggered by the passive autoreactive behavior of the SMAs and controlled through a pivot mechanism. The research question was focused on the evaluation of the above dynamic operation and the adaptive movement of the system in terms of the influence on the building's direct and indirect UHI impact. To address this objective, the performance goals aimed, on one hand, to increase the reflective effect towards the atmosphere through optimizations in the geometry and movement, and, on the other hand, to reduce the building's cooling demands by reducing the incoming solar heat gains and by means of self-shading.  
In the end, the conclusions from each evaluation study led to the observation that the presented facade design with an optimized faceted geometry and diagonal arrangement could potentially reduce the building's direct impact on the urban microclimate with a reduction of about 40% of the reflected portion of the total solar radiation and a more apparent effect close to the facade surface. However, compared to other possible mitigation strategies, the impact was negligible in making a difference in the overall UHI reduction, with only 6% of the total cumulative radiation on the street level resulting from the reflected radiation from the facade surface. On the contrary, the reduction of the cooling demands and, consequently, the indirect UHI impact was more noticeable, with the proposed facade design able to reduce the cooling loads by about 21%.  
From the above studies, it can be summarized that there is potential to explore and enhance the use of SMAs in facade applications to increase the building's performance, thanks to their ability to enable dynamic movements with little energy and material required. The challenges lie mostly in the feasibility, the user's control, and operation cycles of such autoreactive systems and their implications when placed in a broader context. To this regard, it is important to critically evaluate to what extent their implementation can lead to added benefits, taking more parameters into account in practice during the entire life-cycle operation. The question, and challenge, therefore, is how to optimallyintegrate passive strategies to promote sustainability through adaptiveness and smart material- based solutions and under which conditions, to be able to adequately adapt the indoors to the outdoor environmental changes and maximize both the energy and environmental performance.  
Last, but not least, an important contribution of the current project is the integrated systematic design approach through a computational workflow rather than the final design result, and it can be relevant to explore further its potentials for possible applications. This is because it can offer a universal computational methodology and a series of systematic and comprehensive stages for the facade study and evaluation that can be developed and incorporated as a useful digital tool for the service of a broad range of professionals in the field.  
Conceptualization, C.K.; methodology, C.K.; software, C.K; validation, C.K.; formal analysis, C.K.; investigation, C.K.; resources, C.K.; data curation, C.K.; writing--original draft preparation, C.K.; writing--review and editing, C.K., A.P. and S.A.; visualization, C.K.; supervision, A.P. and S.A. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
The authors declare no conflict of interest.