The window reveal refers to the lateral, upper, and lower interior surfaces of the wall opening that form the frame of a window aperture. Its depth results from the wall thickness and the position of the window within the wall construction. A deep reveal protects against direct sunlight, improves sound insulation, and creates a plastic facade effect through light and shadow play. Aesthetically, the reveal can be angled, splayed, or profiled in various ways, which is typical of historical architectural styles such as Romanesque or Gothic. In modern construction, reveals are often minimized, consistent with flatter facades. The detailing of the reveal also affects thermal insulation, driving rain protection, and the visual integration of the window into the facade.