What is a blind arc?

The blind arc is an opening in the shape of an arch in the structure that has been filled, so it is unusable as a traditional door or window. This architectural element is difficult to appear in Gothic and Romanesque revival and is usually designed from masonry or stone. The blind arch can be filled immediately after construction, allowing it to serve as a primary aesthetic function from the very beginning. In other cases, these arches are originally designed to function as access points, but later were filled for various reasons. When used in the series, blind arches are featured as a blind arcade or a Lombard group.

The exact design of the blind arc may vary depending on when and where it was created. Many have a rounded upper part located above the standard door or window opening. Some arches can also be more decorated, with a pointed or top peak, especially in the Middle East architecture. The outline of an arc is often a very distinctive when it is built as the original aestheticsTypná lynx.

Regardless of when a blind arc is filled, the wall thickness of the filled can coincide or differ from the thickness of the surrounding wall. This completed area is often made of the same material as the surrounding wall, and thus virtually flushing with an area outside the arch. When the area is filled later, or if the builders want to add depth and shadow to the facade, they can use a thinner filler than the surrounding wall thickness. The blind arc area may also be stronger, especially if the arch has been filled for safety or for maintaining a decaying structure.

blind arches may take the form of standard doors or windows, or are simply built into the wall for decoration. They are often combined with functional arches that allow access to the building or hold stained glass. While the blind arc can be used BOV interior and it is most common on the outer walls of the building. These arcs were sometimes used by JAKO decorative elements in medieval structures. Older buildings with open windows can be filled later to increase safety or to maintain rain and other elements.

In traditional Gothic or Islamic design, a blind arch was often covered with a decorative feature known as tracery. Tracery consists of a material arranged through a blind arc, a window or simply within the opening to create a design. These belts have complex patterns, including swirl and classic patterns such as clover and other traditional shapes.