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 often model his villa elevations on Roman temple facades. The temple influence, often in a cruciform design, later became a trademark of his work. Palladian villas are usually built with three floors: a rusticated basement or ground floor, containing the service and minor rooms. Above this, the piano nobile accessed through a portico reached by a flight of external steps, containing the principal reception and bedrooms, and above it is a low mezzanine floor with secondary bedrooms and accommodation. The proportions of each room within the villa were calculated on simple mathematical ratios like 3:4 and 4:5, and the different