The Anatomy of a Casement Window

Hinges represent the parts that allow the window to move.

Casement windows have hinges placed on one vertical side of the sash. They open inward or outward, depending on the amount of space or the homeowner's preference. Casement windows present the earliest moveable windows dating back to medieval England. They were typically metal, with leaded glass, and opening outward. Today, you can find them in various materials and adorned with many glass options.

Let's discuss the components of a casement window and its functioning.

Frame

The frame is a crucial part of every window, and casement windows are no exception. Window frames hold the entire construction in place. They can be wood, aluminum, vinyl, or composite.

Most homeowners opt for hollow vinyl windows due to affordability and ease of installation. However, vinyl windows aren't as durable as other materials, leading to frequent replacements.

Despite their level of maintenance and cost, wood or composite windows still present an attractive option to homeowners who prefer classic and traditional styles. With the right refurbishing services, even old wood casement windows can look as good as new.

Sash

The window sash nests inside the window frame and surrounds the glass. Unlike on awning or hopper windows, the sash is the moveable part of the window, fully swinging in or out. It is a wide ventilation opening, letting in sunlight and serving as an emergency escape.

Locking handle or cam

As the name suggests, a locking handle or cam locks the sash into place, preventing intruders from entering through the window or the wind blowing it open. The locking handle comes in two different styles.

The more frequent type is a bar that goes through one side of the sash. It works by operating the mechanism at the bottom. In the other type, the bar is separated in the middle, and each side has its respective closing mechanism.

Keeper

Locking handles and cams connect to the keeper to close the window. While the locking handles and cams are on the window frame, the keeper is on the window sash on the same side.

Hinges

Hinges represent the parts that allow the window to move. These mechanisms occupy one side of the window frame for casement windows and connect to the sash.

Operator and its handle

While the hinges enable movement, the operators or cranks move the window. They feature a handle to control the mechanism inside and swing the window outward. Keeping the operator in good shape can be demanding.

Sill

Even if you don't recognize any of the previously mentioned parts, the window sill is something everyone has heard of. A window sill is a section at the bottom that extends past the window frame.

Choose the best windows

Contact a professional window service to learn more about casement windows. Alternatively, they can help you breathe new life into the existing ones in your home.

The Wood Doctor is the leader in wood restoration, refinishing and refacing in the Portland area. Call 503-560-5220 for a project consultation.