Bossage

The bosses ( bozen of Middle High German, beat ') is in construction, the supernatant material of natural stone in a wall. The preparation of the cuboid is called emboss in the processing of natural stone surfaces.

In most of the cases you do not drive the bosses at a stone wall. Rustication rustication or (from the Latin country) is masonry of stone blocks, whose front page is only roughly trimmed ( embossed ). During the High Middle Ages castle architecture, where the bosses are often provided with a rim shot, a round evenly machined edge, these stones are called hump cuboid.

Variants of Mauerwerksbossierung

The bosses originally served well to prevent the release of heavy stones from the hoisting ropes and occurs already in the ancient wall art and ancient American buildings.

There are different types of rustication. In humpback cuboid a smooth edge is wrapped around the bosses. If the bosses smoothed one speaks of cushion or pillow blocks or cushion blocks. A facet-like, pyramid -shaped front face have diamond square. In other cases, as you come to the finished wall targeting the bosses from and so receives a facet masonry.

All forms also occur in cleaning masonry on simulated.

• Bossierungen

Hemispherical bosses as an ornament of the masonry

Wall corner castle Cagliatscha

Historical development

Rustication was used in the architecture of antiquity and the medieval castle building, often one finds Boss masonry castles of the Hohenstaufen period. As a stylistic device it came from the early Renaissance to the Baroque back to wider application, especially for the representative - fortified design of the ground floor facades of palaces and castles.

Especially popular the rustication enjoyed in mannerism with rough -hewn stresses, large ashlars and partially rusticated columns. Some palazzi of mannerist rustication was faked by irregularly plastered brickwork. This type of analysis is the wall with rustication.

• Rustication

Colossal with Diamantsteinquaderung. Catania, University of

Boss masonry at the Palazzo Pitti in Florence