The bay window offers several unique benefits that make it one of the most desirable window replacement styles for homeowners. Considering this window style? Read on as Renewal by Andersen® provides a closer look at bay windows to help you decide if this is the right window style for you.

Anatomy of a Window
Like every operable window style, bay windows have the following parts:
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Frame: The frame is the part that holds the window assembly together and that fastens to the window opening. The vertical parts of the frame are called the jamb, the top horizontal part is the head and the bottom horizontal part is the sill. The area between the frame and wall opening is filled with insulation and covered with trim. A strong and durable frame material is essential for large windows like bay windows; our Fibrex® material frames are more than adequate for the job.
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Glazing: Also known as the glass panels. Since glass is a naturally conductive material, you will need dual-panel glazing to avoid heat transfer that leads to increased energy consumption due to heat loss in the winter or heat gain when it’s hot outside. Our High-Performance™ Low-E4® glass options are all dual-panel assemblies and have additional features that make them more energy-efficient.
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Sash: Operable windows, such as double-hung and casement windows, have moving parts called sashes, which also hold the glazing. Depending on the window style, the sash can either swing on hinges or slide on tracks.
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Grilles: Also known as mullions or muntins, grilles traditionally hold small pieces of glazing onto the sash. Modern grilles, however, are attached on or between glass panels.
Combination Windows
Bay windows are basically three windows in one: two smaller windows flanking a large main window. While you can choose any combination you want, it’s advisable to choose an operable style for the outer windows for ventilation, with a fixed window in the middle to capture a panoramic view.
The protrusion created by the windows is the bay, hence the name. This space can be used for anything, including window seats, hidden storage or even a radiator cover.
Learn more about our bay windows and other window styles. Call Renewal by Andersen® of Seattle today at (206) 777-0954 or fill out our contact form to schedule your free in-home consultation. We serve many areas around Seattle.