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The restoration of the former Pirelli Tower in Milan, which dates back to the early 1950s, is an example of various issues in approaching the “conservation of the new”. This project was completed with the broad use of industrial products that evoked different kinds of reflections, if only within the same planning methodology, common to all interventions of architectural restoration. This restoration constitutes an exemplary episode where only a careful and critical evaluation facilitated the understanding of which elements are important in conservation and which can be substituted or updated. This approach uses case-to-case evaluations. The conservation of “new” architecture is similar to other restoration problems, except for the closeness in time to the original works and, sometimes, with its creator.The main intervention concerns the recovery of the structure with over 10,000m2 of continuous aluminum and glass façade in a skyscraper designed by Italian master Gio Ponti and the repair of the damage to the reinforced concrete (RC) structures (designed by another Italian master, Pier Luigi Nervi) caused by a plane crash. The straightening and repair of the RC using entirely innovative methods and the conservation of the structures of the whole façade also translates into financial savings. Approximately 20% of the savings is derived from the complete substitution of the curtain wall. This idea of authenticity results in a method of restoration in which all single parts may not always be replaced for every functional upgrade. This scenario is important news, especially for modern architecture that usually prefers the value of what appears to be new, showing parts that are always perfect since the time they were built. People also consider the conservation of items that were considered as merely industrial products a few years ago

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Restoration of the façade of the Pirelli skyscraper in Milan and the repair of damage to reinforced concrete structures caused by a plane crash: An example of critic conservation