Jalousie window while keeping out water was deemed unsatisfactory by the study's authors. Jalousie windows also have several other drawbacks. Traditional style jalousie windows offer poor overall resistance to water penetration and drafts and are difficult to positively secure, as their slats are easily and silently removed. In addition to the inability to keep out water, they do not provide a secure barrier to keep air conditioned air inside. Also, the metal parts which make up the windows moving mechanism are prone to corrosion in humid environments, leading to damage such as broken or missing cranks. Jalousie windows are objects of scorn
Palladian architecture closed, or merely hinted at in the design by pilasters, and sometimes in very late examples of English Palladianism adapted to become a porte-cochere; in America, the Palladian portico regained its full glory. One house which clearly shows this Palladian-Gibbs influence is Mount Airy, in Richmond County, Virginia, built in 1758–62. At Westover the north and south entrances, made of imported Portland stone, were patterned after a plate in William Salmon's "Palladio Londinensis" (1734). The distinctive feature of Drayton Hall, its two-storey portico, was derived directly from Palladio. The neoclassical presidential mansion, the White House in Washington, was inspired by