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Clinker brick
Clinker bricks are partially-vitrified bricks used in the construction of buildings.
Clinker bricks are produced when wet clay bricks are exposed to excessive heat during the firing process, sintering the surface of the brick and forming a shiny, dark-colored coating. Clinker bricks have a blackened appearance, and they are often misshapen or split. Clinkers are so named for the metallic sound they make when struck together.
Clinker bricks are denser, heavier, and more irregular than standard bricks. Clinkers are water-resistant and durable, but have higher thermal conductivity than more porous red bricks, lending less insulation to climate-controlled structures.
The brick-firing kilns of the early 20th century—called brick clamps or "beehive" kilns—did not heat evenly, and the bricks that were too close to the fire emerged harder, darker, and with more vibrant colors, according to the minerals present in the clay. Initially, these clinkers were discarded as defective, but around 1900, the bricks were salvaged by architects who found them to be usable, distinctive, and charming. Clinker bricks were widely admired by adherents of the Arts and Crafts movement.
In the United States, clinker bricks were popularized by the Pasadena, California architecture firm Greene and Greene, who used them for walls, foundations, and chimneys. On the East Coast, clinkers were used extensively in the Colonial Revival style of architecture.
Modern brick-making techniques do not produce clinker bricks, and they have become rare. Builders can procure clinkers from salvage companies; alternatively, some brickmakers purposefully manufacture clinker bricks or produce imitations.
Clinker is sometimes spelled klinker which is the contemporary Dutch word for the brick. Both terms are onomatopoeic, derived from the Middle Dutch klinkaerd, later klinker, from klinken (“to ring, resound”).
Clinker bricks are also known as Dutch paving bricks[citation needed] or Dutch clinker. In 18th century New York, the Dutch interspersed dark clinkers with regular bricks. Some used clinkers to spell out their family initials on brick dwellings such as the Jan Van Hoesen House.
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Clinker brick
Clinker bricks are partially-vitrified bricks used in the construction of buildings.
Clinker bricks are produced when wet clay bricks are exposed to excessive heat during the firing process, sintering the surface of the brick and forming a shiny, dark-colored coating. Clinker bricks have a blackened appearance, and they are often misshapen or split. Clinkers are so named for the metallic sound they make when struck together.
Clinker bricks are denser, heavier, and more irregular than standard bricks. Clinkers are water-resistant and durable, but have higher thermal conductivity than more porous red bricks, lending less insulation to climate-controlled structures.
The brick-firing kilns of the early 20th century—called brick clamps or "beehive" kilns—did not heat evenly, and the bricks that were too close to the fire emerged harder, darker, and with more vibrant colors, according to the minerals present in the clay. Initially, these clinkers were discarded as defective, but around 1900, the bricks were salvaged by architects who found them to be usable, distinctive, and charming. Clinker bricks were widely admired by adherents of the Arts and Crafts movement.
In the United States, clinker bricks were popularized by the Pasadena, California architecture firm Greene and Greene, who used them for walls, foundations, and chimneys. On the East Coast, clinkers were used extensively in the Colonial Revival style of architecture.
Modern brick-making techniques do not produce clinker bricks, and they have become rare. Builders can procure clinkers from salvage companies; alternatively, some brickmakers purposefully manufacture clinker bricks or produce imitations.
Clinker is sometimes spelled klinker which is the contemporary Dutch word for the brick. Both terms are onomatopoeic, derived from the Middle Dutch klinkaerd, later klinker, from klinken (“to ring, resound”).
Clinker bricks are also known as Dutch paving bricks[citation needed] or Dutch clinker. In 18th century New York, the Dutch interspersed dark clinkers with regular bricks. Some used clinkers to spell out their family initials on brick dwellings such as the Jan Van Hoesen House.
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