Jalousie window

[2][3] Because of their slatted louvres, jalousie windows protect the interior of the house from jealous, peering eyes (when not made of a transparent material like glass).

[5] A popular hand-cranked glass, aluminum and screen window combination was later designed by American engineer Van Ellis Huff and found widespread use in temperate climates before the advent of air conditioning.

[10][11][12] Jalousie windows have evolved over time and these days can be seen as a design element as well as a technical device to utilize natural ventilation and temperature control.

[13] A commonly accepted advantage of jalousie windows is their ability to be left part-way open in heavy rains as a way to maintain desirable ventilation, whether during a sunshower or prolonged tropical storm.

[15] 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.

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.

[4] Others, like Ludman WindoTite, promoted their product by declaring how the brand's windows have "transformed the Jones' front porch", which is a reference to the concept of keeping up with the Joneses.