Louvre windows are typically installed in buildings to encourage natural cross flow ventilation. ... However, during winter when the louvres are closed, the inability of the glass blades to seal completely can lead to leakage of air, increasing the load on the heating system.

Are louvered windows safe?

Louver or jalousie windows: Louver windows are especially vulnerable to intruders because the glass panes can be easily lifted out of their brackets from the outside. ... With the glass bonded to the brackets with epoxy, the louver window is no less secure that any other type of window in the house.

What is the point of a louver?

louver, also spelled Louvre, arrangement of parallel, horizontal blades, slats, laths, slips of glass, wood, or other material designed to regulate airflow or light penetration. Louvers are often used in windows or doors in order to allow air or light in while keeping sunshine or moisture out.