barrelvault
A barrel vault, also known as a tunnel vault, is a semi-cylindrical ceiling or roof structure. It is essentially a series of arches placed side-by-side along a line, forming a continuous tunnel. This architectural element is one of the oldest and most basic forms of vaulting.
Historically, barrel vaults were constructed using masonry, typically stone or brick. The immense weight of the
Barrel vaults were commonly used in ancient Roman architecture, particularly in basilicas, baths, and military structures.
The visual effect of a barrel vault is one of enclosure and a sense of forward movement.