Roman brick

Wikipedia, the free encyclopedia - Cite This Source

Roman brick is a type of brick with nominal dimensions of 30 cm (12 inches) by 10 cm (4 inches) by 5 cm (2 inches), making it longer and narrower than most types of brick. Roman brick originated in Ancient Rome and was spread by the Romans to the lands they conquered. This type of brick was introduced to the United States by McKim, Mead and White, and was favored by American architect Frank Lloyd Wright in many of his Prairie Style homes.

History

In Ancient Rome, Roman brick was of similar proportions to the modern day equivalent. The ancient brick was often of a lesser height than the modern alternative and was also made in a variety of differing sizes. The biggest difference in ancient and modern Roman bricks are in the large number of shapes and sizes that the Ancient bricks were available in. Shapes variations included oblong, square, rectangle, triangular and round, and the largest bricks found have measured over three feet in length. Ancient Roman bricks had a general size of 1.5 Roman feet by 1 Roman foot, but common variations up to 15 inches (38.1 cm) existed. Other brick sizes in Ancient Rome included 2 feet by 1 foot by 4 inches (61 cm by 30.5 cm by 10.2 cm), and 15 by 8 by 10 inches (38.1 cm by 20.3 cm by 25.4 cm). Ancient Roman bricks found in France measured 8 by 8 by 3 inches (20.3 cm by 20.3 cm by 7.6 cm). The Constantine Basilica in Trier is constructed from Roman bricks 15 inches (38.1 cm) square by 1.25 inches (3.2 cm) thick.

The Romans perfected brick-making during the first century of their empire and used it ubiquitously, in public and private construction alike. The Romans took their brick making skills everywhere they went, introducing the craft to the local populations. In the British Isles, the introduction of Roman brick by the Ancient Romans was followed by a 600–700 year gap in major brick production. When brick production resumed in earnest on the British Isles, the 1.5–2 inch (3.8–5.1 cm) height of the Roman-style brick gradually increased during the early Medieval period.

Modern Roman bricks are longer and narrower than other types of brick, and have nominal dimensions of 12 (30.4 cm) by 4 (10.2 cm) by 2 inches (5.1 cm). Roman brick was introduced to the United States by the architectural firm McKim, Mead, and White. At one time, Roman brick was one of three available brick types in the United States; the other two were "Standard" and "Norman." By 1920, there were at least five types of bricks commonly available to builders and architects, among them: Roman, Norman, Standard, English and Split. Demand has increased the availability of all types of bricks; there are more than a dozen commercially available brick types in modern construction.

Frank Lloyd Wright's use

Frank Lloyd Wright used Roman brick in his design for the Robie House in Chicago, and he favored it in many of his Prairie style homes. For the Robie House, Wright selected a brick later known as "Pennsylvania Iron Spot Roman brick", personally traveling to St. Louis to choose it. Wright's use of Roman brick in his masonry subtly emphasized the horizontal lines common to much of his Prairie style work. Further highlighting Wright's horizontal emphasis was the use of recessed horizontal mortar joints of contrasting color to the brick. The vertical joints were de-emphasized by ensuring the mortar was flush with, and of the same hue, as the brick. In modern times, as historic preservationists have worked to restore and preserve the work of Wright and his fellow Prairie School architects, Roman brick has proven difficult to obtain.

Roman brick

History

Frank Lloyd Wright's use

Notes

Further reading