Back in the Victorian era, casement windows were the most common type of windows present in British homes. They are distinct from the slightly more popular sash window in that they usually operate on a single sash that opens horizontally opposite its hinge. This type of construction comes with many benefits, such as bringing in more sunlight into your home as well as providing your home with full ventilation from top to bottom. With a casement window, it’s much easier to catch the breeze and direct it into the home, giving you much better air flow.
Casement windows were popularised in the 1930s and are still well-liked today thanks to their timeless look, which is mostly owed to the fact that they’re made using all-natural timber.