Tile: Wikis

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Blue Turkish tiles

A tile is a manufactured piece of hard-wearing material such as ceramic, stone, metal, or even glass. Tiles are generally used for covering roofs, floors, and walls, showers, or other objects such as tabletops. Alternatively, tile can sometimes refer to similar units made from lightweight materials such as perlite, wood, and mineral wool, typically used for wall and ceiling applications. Less precisely, the modern term can refer to any sort of construction tile or similar object, such as rectangular counters used in playing games (see tile-based game). The word is derived from the French word tuile, which is, in turn, from the Latin word tegula, meaning a roof tile composed of baked clay.

Tiles are often used to form wall and floor coverings, and can range from simple square tiles to complex mosaics. Tiles are most often made from ceramic, with a hard glaze finish, but other materials are also commonly used, such as glass, marble, granite, slate, and reformed ceramic slurry, which is cast in a muld and fired.

Contents

Roof tiles

Roof tiles are designed mainly to keep out rain, and are traditionally made from locally available materials such as clay or slate. Modern materials such as concrete and plastic are also used and some clay tiles have a waterproof glaze. A large number of shapes (or "profiles") of roof tiles have evolved. These include:

  • Flat tiles - the simplest type, which are laid in regular overlapping rows. An example of this is the "beaver-tail" tile. This profile is suitable for stone and wooden tiles, and most recently, solar cells.
  • Imbrex and tegula, an ancient Roman pattern of curved and flat tiles that make rain channels on a roof
  • Roman tiles - flat in the middle, with a concave curve at one end at a convex curve at the other, to allow interlocking.
  • Pantiles - with an S-shaped profile, allowing adjacent tiles to interlock. These result in a ridged pattern resembling a ploughed field. An example of this is the "double Roman" tile, dating from the late 19th century in England and USA.
  • Mission or barrel tiles are semi-cylindrical tiles made by forming clay around a curved surface, often a log or one's thigh, and laid in alternating columns of convex and concave tiles.

Roof tiles are 'hung' from the framework of a roof by fixing them with nails. The tiles are usually hung in parallel rows, with each row overlapping the row below it to exclude rainwater and to cover the nails that hold the row below.

There are also roof tiles for special positions, particularly where the planes of the several pitches meet. They include ridge, hip and valley tiles.

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History

Ancient Greek roof tiles
Roof fragment of Roman bath in Bath, Somerset, England
Roman roof tile fragment found in York, UK, showing the impression of a kitten's paw. Fragment measures 78mm wide by 97mm high

Fired roof tiles are found as early as the 4th millennium BC in the Early Helladic House of the tiles in Lerna, Greece.[1][2] Debris found at the site contained thousands of terracotta tiles having fallen from the roof.[3] In the Mycenaean period, roofs tiles are documented for Gla and Midea.[4]

The earliest finds of roof tiles in archaic Greece are documented from a very restricted area around Corinth (Greece), where fired tiles began to replace thatched roofs at two temples of Apollo and Poseidon between 700-650 BC.[5] Spreading rapidly, roof tiles were within fifty years in evidence for a large number of sites around the Eastern Mediterranean, including Mainland Greece, Western Asia Minor, Southern and Central Italy.[6] Early roof tiles showed an S-shape, with the pan and cover tile forming one piece. They were rather bulky affairs, weighing around 30 kg apiece.[7] Being more expensive and labour-intensive to produce than thatchet, their introduction has been explained by their greatly enhanced fire resistance which gave desired protection to the costly temples.[8]

The spread of the roof tile technique has to be viewed in connection with the simultaneous rise of monumental architecture in ancient Greece. Only the appearing stone walls, which were replacing the earlier mudbrick and wood walls, were strong enough to support the weight of a tiled roof.[9] As a side-effect, it has been assumed that the new stone and tile construction also ushered in the end of 'Chinese roof' (Knickdach) construction in Greek architecture, as they made the need for an extended roof as rain protection for the mudbrick walls obsolete.[10]

Tiling was extensively used by Sinhalese kings of ancient Sri Lanka. most of the time they used polished and smoothened stones, which were laid on floors and swimming pools. Historians suggest that they have used advanced techniques and tools for tiling because each tile fits perfectly to the other that not a blade can be inserted in between. They can still be seen at Ruwanwelisaya and Kuttam Pokuna in the city of Anuradhapura.

One of the great, 20th Century Italian Tile Masters, was Giuseppe Damato, an immigrant from Barletta, Italy who set many masterpieces in the Bay Area.

Floor tiles

6"x6" porcelain floor tiles
The elaborate floor pattern of the Sydney Queen Victoria Building

These are commonly made of ceramic, porcelain, or stone, although recent technological advances have resulted in rubber or glass tiles for floors as well. Ceramic tiles may be painted and glazed. Small mosaic tiles may be laid in various patterns. Floor tiles are typically set into mortar consisting of sand, cement and often a latex additive for extra adhesion. The spaces between the tiles are nowadays filled with sanded or unsanded floor grout, but traditionally mortar was used.

Natural stone tiles can be beautiful but as a natural product they are less uniform in color and pattern, and require more planning for use and installation. Mass produced stone tiles are uniform in width and length. Granite or marble tiles are sawn on both sides and then polished or finished on the facing up side, so that they have a uniform thickness. Other natural stone tiles such as slate are typically "riven" (split) on the facing up side so that the thickness of the tile varies slightly from one spot on the tile to another and from one tile to another. Variations in tile thickness can be handled by adjusting the amount of mortar under each part of the tile, by using wide grout lines that "ramp" between different thicknesses, or by using a cold chisel to knock off high spots.

Floor tile in Karpas, northeastern Cyprus

Some stone tiles such as polished granite, marble, and travertine are very slippery when wet. Stone tiles with a riven (split) surface such as slate or with a sawn and then sandblasted or honed surface will be more slip resistant. Ceramic tile for use in wet areas can be made more slip resistant either by using very small tiles so that the grout lines acts as grooves or by imprinting a contour pattern onto the face of the tile.

The hardness of natural stone tiles varies such that some of the softer stone (e.g. limestone) tiles are not suitable for very heavy traffic floor areas. On the other hand, ceramic tiles typically have a glazed upper surface and when that becomes scratched or pitted the floor looks worn, whereas the same amount of wear on natural stone tiles won't show, or will be less noticeable.

Natural stone tiles can be stained by spilled liquids; they must be sealed and periodically resealed with a sealant in contrast to ceramic tiles which only need their grout lines sealed. However, because of the complex, non repeating patterns in natural stone, small amounts of dirt on many natural stone floor tiles do not show.

Most vendors of stone tiles emphasize that there will be variation in color and pattern from one batch of tiles to another of the same description and variation within the same batch.

Stone floor tiles tend to be heavier than ceramic tiles and somewhat more prone to breakage during shipment.

Rubber floor tiles have a variety of uses, both in residential and commercial settings. They are especially useful in situations where it is desired to have high-traction floors or protection for an easily breakable floor. Some common uses include flooring of garage, workshops, patios, swimming pool decks, sport courts, gyms, and dance floors.

Plastic floor tiles including interlocking floor tiles that can be installed without adhesive or glue are a recent innovation and are suitable for areas subject to heavy traffic, wet areas and floors that are subject to movement, damp or contamination from oil, grease or other substances that may prevent adhesion to the substrate. Common uses include old factory floors, garages, gyms and sports complexes, schools and shops.

Ceiling tiles

Vinyl Ceiling Tile

Ceiling tiles are lightweight tiles used in the interior of buildings. They are placed on a steel grid and, depending on the tile selected, may provide thermal insulation, sound absorption, enhanced fire protection, and improved indoor air quality. Also frequently called ceiling panels, or drop-ceiling tiles, they offer the advantage of easy access to wiring and plumbing above the ceiling grid, and can be easily changed, removed, or replaced as needed. They are fabricated from perlite, wood, mineral wool, plastic, tin, aluminum, and fibers from recycled paper. They frequently have patterns of holes, to improve their sound absorption properties, though many have a molded surface providing a textured, sculpted, or

A high school in the United States covered with tiles

pressed-tin look to the ceiling. Some tiles are available with decorative photo/transfer surfaces, some are approved for installation under fire suppression sprinkler heads so the sprinklers do not show, some are approved for use in food preparation areas, and some are certified for indoor air quality by the GreenGuard Institute. Tiles are available that resist mold and moisture damage, that have enhanced acoustical properties, and that can be easily trimmed with household scissors. Recycling old tiles depends upon the material used to make them, and some landfills no longer accept traditional mineral fiber tiles, so they must be recycled to the manufacturer..

Decorative tilework and coloured brick

Decorative tilework in mosque

Decorative tilework should be distinguished from mosaic, where forms are made of great numbers of tiny irregularly positioned tesserae in a single colour, usually of glass or sometimes ceramic.

The earliest evidence of glazed brick is the discovery of glazed bricks in the Elamite Temple at Chogha Zanbil, dated to the 13th century BCE. Glazed and coloured bricks were used to make low reliefs in Ancient Mesopotamia, most famously the Ishtar Gate of Babylon (ca. 575 BCE), now partly reconstructed in Berlin, with sections elsewhere. Mesopotamian craftsmen were imported for the palaces of the Persian Empire such as Persepolis.

Islamic tiles

The Persian tradition continued, and after the Islamic conquest of Persia coloured and often painted glazed bricks or tiles became an important element in Persian architecture, and from there spread to much of the Islamic world, notably the İznik pottery of Turkey under the Ottoman Empire in the 16th and 17th centuries. Palaces, public buildings, and mosques were heavily decorated with dense, often massive patterns and friezes of astonishing complexity, including floral motifs and calligraphy as well as geometric patterns. In Safavi era there are quite samples of Persian decorative tile. the capitol of Safavis was Isfahan in that time and there are popular mosque , churche, palaces, bazars and public places decorated with Decorative motifs of Persian Tile in that era. While Isfahan is still the main city to find this product.

Western tilework

Transmitted via Islamic Spain, a new tradition of Azulejos developed in Spain and especially Portugal, which by the Baroque period produced extremely large painted scenes on tiles, usually in blue and white. Delftware tiles, typically with a painted design covering only one (rather small) tile, were ubiquitous in Holland and widely exported over Northern Europe from the 16th century on. Several 18th century royal palaces had porcelain rooms with the walls entirely covered in porcelain in tiles or panels. Surviving examples include ones at Capodimonte, Naples, the Royal Palace of Madrid and the nearby Royal Palace of Aranjuez.[11]

There are several other types of traditional tiles that remain in manufacture, for example the small, almost mosaic, brightly coloured tiles of Morocco. With exceptions, notably the Porcelain Tower of Nanjing, decorated tiles or glazed bricks do not feature largely in East Asian ceramics.

Portugal and São Luís continue their tradition of azulejo tilework today. In the United States and other Western counties, decorative tiles were in vogue in the 1920s and 1930s. Notable among tilemakers of the period were Ernest A. Batchelder and Pewabic Pottery.

Pebble tile

Similar to mosaics or other patterned tiles, pebble tiles are tiles made up of small pebbles attached to a backing. The tile is generally designed in an interlocking pattern so that final installations fit of multiple tiles fit together to have a seamless appearance. A relatively new tile design, pebble tiles were originally developed in Indonesia using pebbles found in various locations in the country. Today, pebble tiles feature all types of stones and pebbles from around the world, but are still generally associated with pebbles found in exotic locations.

Digital tile

Printing techniques and digital manipulation of art and photography have converged in custom tile printing. Dye sublimation and the application of ceramic based toners permit printing on a variety of tile types yielding photographic-quality reproduction. Using digital image capture via scanning or digital cameras, bitmap/raster images can be prepared in Photoshop and other photoediting software programs. Specialized custom-tile printing techniques permit transfer under heat and pressure or the use of high temperature kilns to fuse the picture to the tile substrate11. This has become an increasingly popular method of producing custom tile murals for kitchens, showers, and commercial decoration in restaurants, hotels, and corporate lobbies.

Mathematics of tiling

Certain shapes of tiles, most obviously rectangles, can be replicated to cover a surface with no gaps. These shapes are said to tessellate (from the Latin tessella, 'tile'). For detailed information on tilings see the tessellation page.

Further reading

  • Marilyn Y. Goldberg, “Greek Temples and Chinese Roofs,” American Journal of Archaeology, Vol. 87, No. 3. (Jul., 1983), pp. 305–310
  • Orjan Wikander, “Archaic Roof Tiles the First Generations,” Hesperia, Vol. 59, No. 1. (Jan.–Mar., 1990), pp. 285–290
  • William Rostoker; Elizabeth Gebhard, “The Reproduction of Rooftiles for the Archaic Temple of Poseidon at Isthmia, Greece,” Journal of Field Archaeology, Vol. 8, No. 2. (Summer, 1981), pp. 211–227
  • Michel Kornmann and CTTB, "Clay bricks and roof tiles, manufacturing and properties", Soc. Industrie Minerale , Paris (2007) ISBN 2-9517765-6-X

See also

References

  1. ^ Joseph W. Shaw, The Early Helladic II Corridor House: Development and Form, American Journal of Archaeology, Vol. 91, No. 1. (Jan., 1987), pp. 59-79 (59)
  2. ^ John C. Overbeck, “Greek Towns of the Early Bronze Age”, The Classical Journal, Vol. 65, No. 1. (Oct., 1969), pp. 1-7 (5)
  3. ^ J. L. Caskey, "Lerna in the Early Bronze Age", American Journal of Archaeology, Vol. 72, No. 4. (Oct., 1968), pp. 313-316 (314)
  4. ^ Ione Mylonas Shear, “Excavations on the Acropolis of Midea: Results of the Greek-Sweed Excavations under the Direction of Katie Demakopoulou and Paul åström”, American Journal of Archaeology, Vol. 104, No. 1. (Jan., 2000), pp. 133-134
  5. ^ Orjan Wikander, p.285
  6. ^ Orjan Wikander, p.286
  7. ^ William Rostoker; Elizabeth Gebhard, p. 212
  8. ^ Orjan Wikander, p.289
  9. ^ Marilyn Y. Goldberg, p.309
  10. ^ Marilyn Y. Goldberg, p.305
  11. ^ Porcelain Room, Aranjuez Comprehensive but shaky video

External links


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Simple English

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File:Blue Turkish
Blue Turkish tiles

A tile is a manufactured piece of hard-wearing material such as ceramic, stone, porcelain, metal or even glass. Tiles are generally used for covering roofs, floors, and walls.

Tiles are often used to form wall and floor coverings, and can range from simple square tiles to complex mosaics. Tiles are most often made from ceramic, with a hard glaze finish, but other materials are also commonly used, such as glass.

In the past twenty years, the technology of porcelain and glass tiles has advanced, moving both from a niche marketplace to a place of prominence in the tile community.

Roof tiles

Roof tiles are designed mainly to keep out rain, and are traditionally made from locally available materials such as clay or slate. Modern materials such as concrete and plastic are also used and some clay tiles have a waterproof glaze.

A large number of shapes (or "profiles") of roof tiles have evolved.

History

Fired roof tiles are found as early as the 3rd millennium BC in the Early Helladic House of the tiles in Lerna, Greece.[1] [2] Debris found at the site contained thousands of terracotta tiles having fallen from the roof.[3] In the Mycenaean period, roofs tiles are documented for Gla and Midea.[4]

References

  1. Joseph W. Shaw, The Early Helladic II Corridor House: Development and Form, American Journal of Archaeology, Vol. 91, No. 1. (Jan., 1987), pp. 59-79 (59)
  2. John C. Overbeck, “Greek Towns of the Early Bronze Age”, The Classical Journal, Vol. 65, No. 1. (Oct., 1969), pp. 1-7 (5)
  3. J. L. Caskey, "Lerna in the Early Bronze Age", American Journal of Archaeology, Vol. 72, No. 4. (Oct., 1968), pp. 313-316 (314)
  4. Ione Mylonas Shear, “Excavations on the Acropolis of Midea: Results of the Greek-Swedish Excavations under the Direction of Katie Demakopoulou and Paul åström”, American Journal of Archaeology, Vol. 104, No. 1. (Jan., 2000), pp. 133-134
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