Jalousie & Pivot Windows
Jalousie windows, also known as louvered windows, consist of horizontally mounted slats that can be adjusted to control the amount of airflow into a building. The slats can be opened or closed using a crank or lever, and the angle of the slats can also be adjusted to allow for more or less direct sunlight. While jalousie windows can provide good ventilation, they can be less energy-efficient than other types of windows because they allow air to escape even when closed.
In contrast, pivot windows rotate on a central axis and can be opened from either end. They are popular in modern architecture for their minimalist look and flexibility in opening options. Pivot windows can also provide good ventilation and energy efficiency if designed properly. While jalousie and pivot windows offer different benefits and drawbacks, both can be suitable options depending on the specific needs and preferences of the user.
The jalousie window has a history dating back to the 18th century. Originally used in hot climates, such as the Mediterranean and Caribbean, they were designed to provide ventilation while still maintaining privacy and security. Jalousie windows gained popularity in the United States in the mid-20th century, particularly in warm coastal regions. While their popularity has since declined, they are still commonly used in tropical and subtropical areas, as well as in certain architectural styles, such as mid-century modern.
Jalousie windows are generally not airtight, as they consist of individual slats that allow air to flow through even when closed. This can result in a loss of energy efficiency and increased heating or cooling costs. However, modern jalousie windows can be designed with improved sealing materials and methods, such as overlapping slats and weatherstripping, to reduce air leakage.
Jalousie windows may not be as secure as other types of windows due to their design. The individual slats can be easily removed or broken, providing an entry point for intruders. Additionally, the crank or lever used to open and close the window can be vulnerable to forced entry. However, there are security measures that can be taken to improve the safety of jalousie windows, such as installing reinforced glass and locking mechanisms. Ultimately, the level of security provided by jalousie windows depends on the specific design and installation.
Jalousie windows are best suited for warm, humid climates where ventilation is a priority. Jalousie windows are commonly used in tropical and subtropical regions, such as the Caribbean, Southeast Asia, and parts of Africa, where the climate is consistently warm and humid. However, they may not be as suitable for colder climates or areas with high wind speeds, as they can allow for air infiltration and energy loss.