A fixed window is a type of window that does not open or close. It is designed to provide natural light and views while maintaining energy efficiency. Fixed windows are often used in combination with operable windows to enhance ventilation and aesthetics in buildings. These windows are typically made of glass and framed in materials like wood, vinyl, or aluminum. Because they do not have moving parts, fixed windows are generally more durable and require less maintenance than other window types. They are commonly found in residential and commercial buildings, contributing to the overall design and functionality of a space.