Guggenheim Museum Bilbao, Spain (No. 6)
It is clad in titanium plates, arranged in scales, on a galvanized steel structure. The museum's exterior skin is made of 33,000 titanium plates, a material that has been used to replace copper or lead because of their toxicity. Many tests have been carried out with different materials to find one that would withstand heat and bad weather, while maintaining its character. It was during this research process that tests were started on titanium samples and the best treatment was found.
Its lamination process is delicate and has to be done in places with high energy sources, that's why the laminated parts were made in Pittsburgh, in the United States, the rolling allowed to obtain titanium plates only 0.4mm thick, which is much thinner than if steel plates had been used. Moreover, titanium is about half the weight of steel, and the museum's titanium coating represents only 60 tons.
Source: Wikipedia










