Patrimonializzare il giardino d’inverno nella sua natura polimaterica. Progetto, trasformazioni d’uso e conservazione della serra sul lanificio Zegna a Trivero di Pietro Porcinai

The paper emphasises the need to include winter gardens within the heritage-making processes, acknowledging their fragility due to the delicate balance between architecture and landscape, vegetation and minerals. Within this framework stands the winter garden designed by Pietro Porcinai for Aldo Zegna, between 1962 and 1964, on the roof of the wool mill in Trivero, recently included in the mapping of Censimento delle Architetture italiane dal 1945 ad oggi. The interventions relative to the repurposing of the complex into an archival and museum hub have modified its original spatial and compositional values, compromising the polymaterial nature of the work by privileging architecture over the garden. Ultimately, this case calls for reflection on the conservation of what remains authentic of the designer’s intuition and authorship, despite the transformation of its intended use.