Jalousie window Jalousie window A jalousie window (, ) or louvre window (Australia, New Zealand, Pacific Islands, Southeast Asia, United Kingdom) is a window composed of parallel glass, acrylic, or wooden louvres set in a frame. The louvres are joined onto a track so that they may be tilted open and shut in unison to control airflow, usually by turning a crank. Jalousie is the French word for jealousy. It originated in 18th century France from the Italian word "geloso", which means jealous, or screen, as in to screen something from view. Supposedly because of their slatted louvres, jalousie windows protect the
Palladian architecture of Palladian design. This development of the style was to be repeated in countless houses, and town halls in Britain over one hundred years. Falling from favour during the Victorian era, it was revived by Sir Aston Webb for his refacing of Buckingham Palace in 1913. Often the terminating blocks would have blind porticos and pilasters themselves, competing for attention with, or complementing the central block. This was all very far removed from the designs of Palladio two hundred years earlier. English Palladian houses were now no longer the small but exquisite weekend retreats from which their Italian counterparts were