An exploration of the Potential of the Facades Outermost Surface: How patina, the shallow layer of deposits on a built surface, can be of benefit to buildings and their environment

Abstract

This dissertation investigates the transformative potential of building facades' outermost surfaces, focusing on the role of biopatina-a thin layer of deposits that accumulates over time. Employing interdisciplinary approaches that integrate artistic research, material science, and geomicrobiology, it argues that these organic processes should be understood
not only as aesthetic phenomena but also as ecological and functional components. The study challenges existing architectural cleanliness practices rooted in modernism and sterility, exploring the ethical and cultural implications of these surface transformations. Through multiple case studies based in urban contexts of Central Europe, including Vienna, Prague, and Brno, the dissertation highlights how biopatina serves not only as a visual marker of time but also contributes to improved air quality, reduced urban heat island effects, and the protection of building materials. These examples underscore the environmental benefits and symbolic meanings of natural weathering and staining processes.
The research proposes alternative care and maintenance models aimed at fostering coexistence between human and non-human agents, rather than suppressing natural processes. lt advocates for a rethinking of architectural norms that embrace natural aging processes and microbial life as integral to the built environment. Ultimately, the work offers a
vision for a more sustainable urban future, redefining the potential of facades' outermost surfaces in aesthetic, cultural, and ecological contexts.

Short biography

Adam Hudec is a researcher, architect, and activist whose work explores the interplay of natural and cultural material processes through cross-disciplinary methodologies. His practice spans art, science, and architecture, focusing on uncovering hidden environmental phenomena and fostering audience engagement through scientifically informed artistic production. Educated at The Academy of Fine Arts in Vienna, The University of Hong Kong, The University of Brighton, and Brno University of Technology, Adam's projects have been featured internationally, including at the Bi-City Biennale in Shenzhen, BIO 26 in Ljubljana, and the 2022 Venice Biennale. Co-founder of Dusts Institute, Adam is dedicated to addressing environmental, social, and ethical concerns, using collaborative approaches to reimagine knowledge and practices surrounding the environment.