: The most critical feature is a system that divides the turf into six trays, which are stored in a 35-meter-deep underground chamber. This chamber provides artificial lighting, irrigation, and climate control to preserve the grass while the stadium floor is used for other events.
: Two massive 176-meter steel trusses support a roof that can open or close in roughly 15-20 minutes, allowing the stadium to host events regardless of weather.
: The exterior is wrapped in 7,500 stainless steel slats that act as a "skin," capable of projecting dynamic LED lighting and video mapping while maintaining natural ventilation. Inside Real Madrid's New $1.3 BN Stadium
The renovation of the Santiago Bernabéu represents a shift in sports architecture from single-use matchday venues to "365-day" urban entertainment hubs through the integration of revolutionary engineering like retractable pitches and programmable facades. II. Core Engineering Innovations