Adaptive Energy Skins: A Climate Zones-Based, Multi-Scale Analysis for High Performance Buildings

Adaptive facades represent the result of a complex combination of innovative technologies, components, and materials, as well as mechanical, electronic, or digital technologies from sectors outside the construction world (technology transfer), which require a constant multidisciplinary systemic approach. Unlike traditional envelopes, adaptive facades integrate aesthetics, functionality, and energy performance within a single system. This field of research has long been the subject of study by important institutions and research groups that have identified the macro-categories of adaptive envelopes that cover the largest share of the market and have defined the first ISO standards related to dynamic shading, chromogenic envelopes, and active ventilated facades. From the state-of-the-art analysis, adaptive facade systems exhibit short response times, measurable in seconds or minutes, while medium- to long-term adaptability remains underexplored. The objective of this study is to address this gap by considering durability and circularity. Analysis of a database of 329 building envelopes reveals a predominance of short-term strategies within the environmental domain, while long-term strategies focus on material durability and resilience through system regeneration and reuse. These strategies allow for maintaining energy performance by reducing degradation. Ongoing research integrates these strategies with reusability and circularity, extending the perspective beyond the building’s service life to support sustainable lifecycle approaches.