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 the name or the origin, this form of window has probably become one of the most enduring features of Palladio's work seen in the later architectural styles evolved from Palladianism. According to James Lees-Milne, its first appearance in Britain was in the remodelled wings of Burlington House, London, where the immediate source was actually in Inigo Jones's designs for Whitehall Palace rather than drawn from Palladio himself. A variant, in which the motif is enclosed within a relieving blind arch that unifies the motif, is not Palladian, though Burlington seems to have assumed it was so, in using a drawing