The word is a loanword from the French façade, which in turn comes from the Italian facciata, from faccia meaning 'face', ultimately from post-classical Latin facia.
[4] This new construction has happened also in other places: in Santiago de Compostela the three-metre-deep Casa do Cabido was built to match the architectural order of the square, and the main Churrigueresque façade of the Santiago de Compostela Cathedral, facing the Plaza del Obradoiro, is actually encasing and concealing the older Portico of Glory.
In general, the façade systems that are suspended or attached to the precast concrete slabs will be made from aluminum (powder coated or anodized) or stainless steel.
In recent years more lavish materials such as titanium have sometimes been used, but due to their cost and susceptibility to panel edge staining these have not been popular.
In film sets, they are simply held up with supports from behind, and sometimes have boxes for actors to step in and out of from the front if necessary for a scene.