The boundary between both inner and outer emptiness is the strength of the architecture of Livio Vacchini. This limit is about structure, thickness and the detail that makes evident with light. A limit that seems to reflect his principles, rules and construction techniques, that vary depending on the public or private nature of the work. The comparison between two of his projects, Vacchini’s House in Costa Tenero and Multifunctional Gymnasium in Losone, leads to show the work and though of Vacchini and how he approaches the project depending on the typology of the work.In both examples, the structural skeleton is shown on the outside at its best, enabling the architectural dignity deserved and setting it free from its function. Livio Vacch...