The corporate headquarters of Banco Popular Español is currently under construction in Madrid. It includes an auditorium and a dedicated interpreter. Suspended from the ceiling of the auditorium, the box was designed with glass and PET cores.

A composite solution when Carbures and Diab collaborated Martifer was building the building, while Carbures made the interpreter's box. Founded in 1999 in Santa Maria Port, Spain, Carbures specializes in the production of composite parts and structural parts. With its own technology and production process for the production of composite structures, the company has partnered with Diab in other projects, such as the Norman Foster Foundation in Madrid, and knows that Diab's core materials are reducing weight. Advantage characteristics.
The use of PET cores for lightweight and fire resistant PET has a number of competitive advantages, mainly due to its light weight and constant strength. Two boxes were made, one forming the ceiling and the other forming the floor. Each is made of three curved geometry GFRP (glass fiber reinforced plastic) sheets with a length of 7.50 m and a width of 1.10 m. The plate is made of Divinycell PET 60 and is 55mm and 12mm thick with resin infusion technology. They weigh less than 120 kg and offer flame retardant properties (BS2d0) to meet all FST (fire, smoke and toxicity) requirements.
