Multi-use buildings host a number of commercial activities of various types within a single structure, from exhibition spaces to retail activities, as well as spaces for conferences, offices, hotels and environments for recreational activities. The buildings, which are often newly constructed or the result of extensive renovations, are generally characterised by open spaces, very high ceilings and lightweight structures, meaning that the integration of systems is often challenging. The variation in terms of crowding and activities inside these buildings, and the intermittence of loads, call for installations that are flexible, along with rational management of air exchange and central heating or cooling functions. Aermec's experience in developing solutions dedicated to all the varying different ambients within such structures assists designers in achieving key objectives such as climatic comfort, performance and energy efficiency.