Jalousie glass windows maximize natural ventilation by allowing airflow through the entire window area. Historically made only of wooden slats or glass panes, they are well suited to mild-winter climates. With mass production they became very common throughout homes in mid-20th-century Florida, Hawaii, southern California, the deep South, and Latin America. In cooler regions they were rapidly adopted to porches and sunrooms. They were also widely used in mobile homes during the 1950s and 1960s before most manufacturers began switching to sliding and sash windows in subsequent decades.
An additional advantage of jalousie glass windows is the ability to leave them at least partway open in most heavy rains, maintaining desirable ventilation whether a sun shower or prolonged tropical storm. On the downside, traditional style louvered windows offer poor overall resistance to water penetration and drafts. They also are difficult to positively secure, as their slats are easily and silently removed.
Modern jalousie glass windows, however, may be high-performance architectural windows, and have been featured in award-winning buildings.
Jalousies with extremely wide louvered panels (of six inches and more) are sometimes called awning windows.
More Benefits of Jalousie glass Windows
Useful During Light Rain
If you like to keep your windows open during a storm, you’ll enjoy having jalousie glass windows. Like an awning window, their slats help repel rain and keep the weather out, allowing you to to bring in the storm’s cool air without soaking the floors and other surfaces around the windows.
Jalousie glass window slats are easy to repair and cost effective because you only have to replace the damaged slat. Traditional windows usually require full pane replacement, which is more costly. When a section of your jalousie window breaks, you unhook that section and put a new one in. This easy maintenance is one of the main reasons people favored these windows decades ago when glass was less durable and more prone to breaking.