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Minka

Coordinates: 36°24′N 136°53′E / 36.400°N 136.883°E / 36.400; 136.883
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For other uses, see Minka (disambiguation).

A gasshō-zukuri-styled minka home in Shirakawa village, Gifu Prefecture

Minka (民家, literally "house of the people") are vernacular houses constructed in any one of several traditional Japanese building styles. In the context of the four divisions of society, minka were the dwellings of farmers, artisans, and merchants (i.e., the three non-samurai castes), but this connotation no longer exists in the modern Japanese language, and any traditional Japanese-style residence of an appropriate age could be referred to as minka.

Minka are characterised by their basic structure, their roof structure and their roof shape. Minka developed through history with distinctive styles emerging in the Edo period.

Types of minka

Gasshō-style roof
Gasshō-zukuri under repair

The term Minka literally means "houses of the people" and it covers houses that accommodated a wide variety of people from farmers through to village headmen, merchants and low level samurai.[1]

Minka come in a wide range of styles and sizes, largely as a result of differing geographic and climatic conditions as well as the lifestyle of the inhabitants, but they generally fall into one of four classifications: farmhouses nōka (農家) town houses machiya (町屋), fishermen's dwellings gyoka (漁家) and mountain dwellings sanka (山家).[2]

Unlike other forms of Japanese architecture such as those of the sukiya (数寄屋) style, it is the structure rather than the plan that is of primary importance to the minka.[3] Minka are divided up with primary posts that form the basic framework and bear the structural load of the building; and secondary posts which are arranged to suit the functional arrangements of the plan.[4]

Despite the wide variety of minka, there are eight basic forms. The inverted U consists of two vertical posts fixed at the top with a horizontal beam, these individual units can then be added together with side girders. The beam can be fixed to the top of the post either by just resting upon it or via a mortise and tenon joint. This latter method is often found in minka on the island of Shikoku.[3] The ladder has a number of post and beam units connected together with larger beams including beams that are closer to the foundation level and this form of structure originated in townhouses of the Edo period. The system will allow the irregular placement of posts and therefore allows flexibility in the plan.[3] With the umbrella style, four beams radiate out from a central post. These posts sit at the centre of the four sides of the square rather than the corners. Minka of this type are often found in Shiga Prefecture.[5] The cross has two beams at right angles to one another with the posts in the centre of the sides. It is often used for very small minka that have no other posts erected within the space, or for large minka in the earth-floored area. The style is most often found in Shiga and Fukui prefectures. Parallel crosses are found in Shizuoka Prefecture and will cover an area 5 metres by 10 metres. This system doubles up the cross structure with two crosses and eight posts. The box structure connects four or more post and beam units to create a box-like structure. It was devised in the Edo period and can be found in Toyama and Ishikawa Prefectures.[6] The interconnected box can be found in Kyoto and Osaka. And finally, rising beams is a form of structure that enables better use of the second storey. It uses beams that rise from the posts to a secondary ridge that is below the one formed by the rafters.[7]

Thatched roof farmhouses based upon the rising beam structure can be further classified into four major types. The first two of these, the yojiro-gumi and the wagoya (和小屋) are rare. Although the latter of these, the wagoya is popular for machiya houses. Far more common are the sasu (扠首) (also known as gasshou (合掌)) and the odachi types.[8][9]

The odachi style has rafters, crossbeams and short vertical posts to support the ridge. Historically, these posts would have extended to the ground resulting in a row of posts extending down the centre of the house and dividing it in two. Although these could be accommodated within the layout of the main house, they were impractical within the earth-floored entrance area and so they were omitted and a special beam structure used instead.[10] This style was in wide use until the Edo period when a shift was made to the sasu style (although both types had been used since historic times).[11]

The sasu style is a simpler triangular shape with a pair of rafters joined at the top to support the ridge pole. The ends of these rafters were sharpened to fit into mortice holes at either end of crossbeam.[9] As this system does not rely on central posts it leaves a more unobstructed plan than the odachi style.[10]

Design of the floor plan

Decorative roof projections on the ridge of a thatched roof

There were two main methods for setting out the floor plan of the minka. The kyoma (京間) method uses a standard size of tatami (畳) mat, whereas the inakama (田舎間) method is based upon column spacing.[12]

The kyoma method works well for minka without central columns as the mats and the sliding partitions (fusuma (襖) and shōji (障子)) can be based on a standard size. This method was mainly used in minka in eastern Japan.[13] The method has its disadvantages if used with posts because variations in post width can make the prefabrication of the sliding partitions difficult.[12]

The inakama method is based upon the distance between centre of one post and centre of the post adjacent to it and it was mainly used on the eastern side of Japan.[13]

Overall construction

Tiled udatsu projecting above the roof

The size, construction and decoration of a minka was dependent upon its location and local climate as well as the social status of its owner.[14]

Minka were influenced by local building techniques and were built with materials that were abundant in the immediate locality. For example, minka in Shizuoka used abundant bamboo for roofs, eaves, doors and floors. When miscanthus reeds were difficult to obtain for thatched roofs, shingles were used instead; and in volcanic areas rushes or boards were used instead of clay for the walls.[15]

Climate too had a bearing on construction, in Kyoto in the late Heian and Muromachi periods, roofs were clad in thin wooden shingles so owners would put stones on top to prevent the shingles from flying away in the wind.[16]

The social status of the minka owner was indicated by the size and complexity of the building. For thatched roof minka the number of crossed wooden members (umanori (馬乗り)) or bundles of miscanthus reeds along the ridge are a good indicator of the importance of the owner's social status within the village.[17] For machiya, the presence and elaborateness of an (udatsu (卯立)), which is a wall that projects above the roof line has a similar status. Latterly the udatsu inherited the function of a fire break, but initially it was a method of establishing the extent of ownership in long terraces of row houses.[18]

During the evolution of minka, the machiya townhouses gradually changed its construction away from perishable and flammable materials to those of a more durable nature. Thatched roofs were replaced with tiles and exposed timbers were covered up with layers of clay plastering.[19]

Minka owned by people of a higher social status began to incorporate elements of the shoin style, particularly within the living rooms. The types of elements incorporated were limited by laws to preserve strict class distinctions.[1]

Roofing

Gasshō-zukuri Minka homes in Gokayama surrounded by snow.

There are four types of roof shape that can be differentiated for minka. Most machiya have gabled kirizuma (切妻) roofs, covered in shingles or tiles, and slanting down on either side of the house. The majority of nōka have either thatched yosemune (寄せ棟) style hipped roofs, which slant down on four sides, or the more elaborate irimoya (入母屋) roof with multiple gables and a combination of thatched sections and shingled sections. Finally, the hogyo (方形) also slopes in four directions but is more pyramidal in shape.[20]

The primary purpose of shaping minka roofs in this manner was to accommodate the extensive precipitation experienced in many parts of Japan. A steeply peaked roof allows rain and snow to fall straight off it, preventing water from getting through the roof into the home, and to a lesser extent preventing the thatch itself from getting too wet and beginning to rot.[20][21]

At the roof's peak and other places where roof sections came together decorations were added. Thatched roofs would have trimmed or transverse layers of straw, bamboo poles or planks of wood.[20] Whereas tiled roofs have a variety of decorative plates to the ends of the ridge, for example, shachi (鯱) (fish).[22] They also had circular plates to the ends of the tiles at the eaves called gatou (瓦当) that helped to deflect rain.[23]

Farmhouse interior

Irori (囲炉裏)
A jizai kagi hearth hook with fish-shaped counterbalance

The deep eaves of the farmhouse roof helped to protect the interior from driving rain. They stop the sun from entering the interior during the summer, but they allow the low rays of sun into warm the house during the winter. Often there is a timber-floored veranda (engawa (縁側 or 掾側)) around the house under the eaves and protected on the outside by storm shutters. In areas where there is heavy snow there may be a lowered earth-floored area outside the veranda further protected by shutters which helps to stop snow from blowing into the interior.[24]

The interior of a minka was generally divided into two sections: a floor of compacted earth, called doma (土間), and a raised floor (generally around 20 inches (50 cm) above the level of the doma) covered in tatami or mushiro mats.[25] Large farmhouses sometimes had a raised, timber floored internal veranda (hiroshiki (広敷)) that separated the doma and the tatami areas.[1] In older houses like the 17th century Yoshimura house this separating zone was up to 2.5 m wide and servants apparently slept there.[26]

The raised floor often included a built-in hearth, called an irori (囲炉裏). Above the ash-filled hearth would hang a kettle suspended from the ceiling by an adjustable hearth hook made of wood, metal and bamboo. This jizai kagi (自在鈎) could be raised or lowered depending on the amount of heat required and was often shaped into decorative fish or blade shapes.[27] There was no chimney in the farmhouse and the smoke from the irori would rise through the roof drying the reeds and deterring insects. The irori was the centre of communication for the house where the family gathered to chat and eat and it was a cozy place around which to sleep.[28]

Though there were many various possible arrangements of the rooms within a home, one of the most common, called yomadori (四間取り), comprised four rooms in the raised floor portion of the house, adjacent to the doma.[25] The arrangement and size of these rooms was made more flexible with the use of sliding fusuma and shōji partitions.[29]

The social status of the owner of house governed the conventions of their social relationships within the house. For example, the lowliest ranked people would sit on the earth floor whilst those above them would sit on the hiroshiki and those above them on the tatami floored inner rooms. Honoured guests would sit next with their back to the tokonoma (床の間).[30] The requirements for social etiquette extended to the family and there were particular seating positions (yokoza (横座)) positioned around the hearth.[31]

Typical Edo period farmhouses

Honmune-style house with birdlike decoration on the gable

A number of styles of farmhouses came to maturity during the Edo period, some typical examples follow.

Gasshou

The gassho-zukuri (合掌造) style minka have vast roofs that are a large form of the sasu structural system. Their name derives from the similarity of the roof shape to two hands in prayer. They are frequently found in Gifu Prefecture.[32] The upper floors of the two and three storey houses are used for sericulture, with storage space for the trays of silkworms and mulberry leaves.[33]

Honmune

Honmune-zukuri (本棟造) literally means "true ridge". The style has a nearly square plan with a gabled roof that is board covered. The gable end of the house is particularly impressive with its composition of beams, eaves and braces. The gable is topped by a birdlike ornament called a suzume-odori (雀踊り).[32] Houses of this type can be found in Gunma, Nara, Yamaguchi and Kouchi prefectures.[34]

Preservation

Gasshō-zukuri, Ogimachi village

Minka are generally treated as historic landmarks, and many have been designated for preservation by local municipalities or the national government. The tremendous regional variation of minka has also been preserved in open-air museums such as Nihon Minka-en in Kawasaki, where examples from around Japan are kept on display.[35]

Of particular note is the so-called gasshō-zukuri (合掌造り, literally "clasped-hands" style), which is preserved in two villages in central Japan, Shirakawa in Gifu Prefecture and Gokayama in Toyama Prefecture, that together have been designated a World Heritage Site by UNESCO.[36]

In 1997, the Japan Minka Re-use and Recycle Association (JMRA) was established to promote the benefits and conservation of minka. One minka that belonged to the Yonezu family was acquired by the JMRA and donated to Kew Gardens as part of the Japan 2001 Festival. The wooden structure was dismantled, shipped and re-assembled in Kew with new walls and a thatched roof.[37]

Footnotes

  1. ^ a b c Nishi & Hozumi (1996), p82
  2. ^ "minka". JAANUS. Retrieved 2013-11-09.
  3. ^ a b c Itoh (1979), p44
  4. ^ Itoh (1979), p43
  5. ^ Itoh (1979), p45
  6. ^ Itoh (1979), p46
  7. ^ Itoh (1979), p47
  8. ^ Itoh (1979), p81
  9. ^ a b "sasu". JAANUS. Retrieved 2013-11-09.
  10. ^ a b Itoh (1979), p110
  11. ^ Itoh (1979), p84
  12. ^ a b Engel (1980), p78-81
  13. ^ a b Itoh (1979), p112
  14. ^ Itoh (1979), p70-72
  15. ^ Itoh (1979), p118
  16. ^ Itoh (1979), p124
  17. ^ Itoh (1979), p120
  18. ^ Itoh (1979), p122
  19. ^ "machiya". JAANUS. Retrieved 2013-11-09.
  20. ^ a b c Fahr-Becker (2001), p196
  21. ^ "kayabuki". JAANUS. Retrieved 2013-11-10.
  22. ^ "shachi". JAANUS. Retrieved 2013-11-10.
  23. ^ "gatou". JAANUS. Retrieved 2013-11-10.
  24. ^ Itoh (1979), p66-68
  25. ^ a b "minka". JAANUS. Retrieved 2013-11-10.
  26. ^ "hiroshiki". JAANUS. Retrieved 2013-11-10.
  27. ^ Fahr-Becker (2001), p191
  28. ^ Fahr-Becker (2001), p193
  29. ^ Itoh (1979), p27
  30. ^ Itoh (1979), p72
  31. ^ "yokoza". JAANUS. Retrieved 2013-11-10.
  32. ^ a b Itoh (1979), p150
  33. ^ Fahr-Becker (2001), p194
  34. ^ "suzumeodori". JAANUS. Retrieved 2013-11-10.
  35. ^ "Nihon Minkaen". Japan Open-Air Folk House Museum. Retrieved 2013-11-09.
  36. ^ "Historic Villages of Shirakawa-go and Gokayama". Unesco. Retrieved 2013-11-09.
  37. ^ "Japanese Minka". Kew Royal Botanic Gardens. Retrieved 2013-11-09.

See also

References

  • Fahr-Becker, Gabriele (2001) [2000]. Ryokan - A Japanese Tradition. Cologne: Könemann Verlagsgesellschaft mbH. ISBN 3-8290-4829-7.
  • Engel, Heinrich (1980) [1964]. The Japanese House - A Tradition for Contemporary Architecture. Rutland/Tokyo: Charles E Tuttle. ISBN 0-8048-0304-8.
  • Itoh, Teiji (1979) [1972]. Traditional Domestic Architecture of Japan. New York/Tokyo: Weatherhill/Heibonsha. ISBN 0-8348-1004-2.
  • Nishi, Kazuo; Kazuo Hozumi (1996). What is Japanese Architecture - A Survey of Traditional Japanese Architecture. Tokyo: Kondansha International. ISBN 978-4-7700-1992-9.

Further reading

  • Suzuki Mitsuru (1985). "Minka." Kodansha Encyclopedia of Japan. Tokyo: Kodansha Ltd.
  • Taro Sakamoto, et al. (1964). Fuzoku jiten (A Dictionary of Popular Culture). Tokyo: KK Tokyodō


36°24′N 136°53′E / 36.400°N 136.883°E / 36.400; 136.883

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