**5. Conclusions**

This paper presented the work carried out within the Re-Coding project, a multidisciplinary exploration carried out by F*UL*L and R3C at the Polytechnic of Turin, in collaboration with the Municipality of Turin. The study analyzed the role of regulation in fostering or hindering sustainable development and in supporting the Municipality of Turin to simplify, disambiguate, and redefine the local current environmental regulation system. The study particularly focused on the exploration of the role of the roof element, as fifth facades of buildings.

The study has evaluated the potential, feasibility, and impact of the rooftops' renovation for a district of Turin. The results of this investigation confirm that the use of green roofs and the production of energy with solar thermal collectors and photovoltaic panels mitigate the urban heat island e ffect, reducing energy consumption with environmental, economic, and social benefits.

In line with [4], the study supported the idea that simple regulation can support and foster the transformation of cities toward a more sustainable and resilient built environment. Further studies will need to be conducted with the aim of monitoring and updating the future transformations of our cities, based on regulation updates. To this end, the approach of this work will need to consider the call for an ongoing normative review system in line with technological advancement, as well as in line with [88] the ability of institutions to envision and promote a sustainable and resilient vision for our cities. As [8] explained, understanding the opportunities of sustainable codes and regulations can contribute to the development and managemen<sup>t</sup> of our future sustainably built environment, as the built environment and its environmental governance can still be considered the reflection of the societal changes that we decide to address [89].

**Author Contributions:** Conceptualization: V.T., G.M., L.B., M.N., and M.R.; methodology: V.T. and G.M.; formal analysis: V.T. and G.M.; writing—original draft preparation: V.T., G.M., L.B., and M.N.; writing—review and editing, V.T., G.M., L.B., M.N., and M.R. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
