1. History and outlook

1.1 Understand where you come from to know where you're going

The etymology of the word "bardage" comes from the term "bardeau", which designates a façade covering made from wood shingles.

Initially made of wood or masonry, it was not until the early 20th century that the facades of industrial buildings were gradually covered with non-insulated painted metal sheets. Avant-garde projects, such as Le Corbusier's 1923 villa "Le Lac" in Corseaux (Switzerland), or the "Maison du peuple" in Clichy designed around 1936 by Lods and Beaudouin, for which Jean Prouvé invented the curtain wall in folded sheet steel, gradually emerged (figures