i8 | estidamah center At the ground floor level, a structural, glazed unitized system was designed and recessed in order to provide the necessary shading from direct sunlight. For the upper floors, a conventional aluminum curtain wall system was used. A concrete canopy hovers over the roof level, extending above the main entrance and towards the right wing of the building. This canopy features linear slots, reducing its weight on the structural skeleton beneath. An internal atrium mimics the adjacent greenhouse by introducing a pitched skylight, providing a natural light source within the building. The building envelope was designed to respond to the different levels of solar exposure. Shading devices were installed where necessary, and curtain wall façades were not allowed to exceed 50% of the façade area. Shading louvers were used at the south-east elevation, providing a contemporary image consisting of projected aluminum louvers with steel grates. These grates provide natural ventilation for the space between the curtain wall and the louvers (catwalk), preventing the heat island effect and protecting the internal spaces from direct sunlight. 32