The window is the architectural element that satisfies our innate need to relate to the outside space, providing us with ventilation and light. The more extensive and clean the window is, the greater the sensation of "being outside". Consequently, opening up spaces to the outside has become a common requirement for people who want and need to inhabit flexible, adaptable spaces, in contact with the air and nature. There are many ways to do this, but not all of them allow an airtight enclosure to become fully open and continuous, clearing the boundaries between both spaces.
