keshou yane　化粧屋根

KEY WORD :　architecture / general terms

Also called *keshou yaneura 化粧屋根裏. The underside of a timber roof, commonly called an open ceiling or open-beamed ceiling, whereby the sheathing beams and rafters are visible and have been planed *keshou-ita 化粧板. In the early centuries, open-beamed ceilings were painted red. Example: Shin'yakushiji Hondou 新薬師寺本堂 (8c), Nara. If a double roof system, with a hidden roof *noyane 野屋根, and ceiling *tenjou 天井, is used, the ceiling may follow a similar structural system with sheathing and a second set of rafters that are visible. This ceiling, although following the general characteristics of the hidden roof structure, is set considerably lower and has a more gentle pitch. It is believed that installed ceilings or hidden roofs were not used until late in the 10c. When a hidden roof was placed only over the aisles *hisashi 廂, in the large reconstructed lecture hall *Daikoudou 大講堂 (990) at Houryuuji 法隆寺. A building in the pure daibutsu style *daibutsuyou 大仏様, does not have an installed ceiling or a hidden roof. Example: Joudoji *Joudodou 浄土寺浄土堂 (1193), Hyougo prefecture. After the 10c, ceilings were often installed in temple buildings, but the worship hall *gejin 外陣, or the aisles *hisashi 廂 and *mokoshi 裳階, surrounding the core of a temple building were very often 1-bay deep and left open to the ceiling. In the case of pent roofs, the open-beamed ceiling is only the extension of the roof. Example: Joudoji Hachiman Jinja Haiden 浄土寺八幡神社拝殿 (14c), Hyougo prefecture, which has open-beams shaped like the underside of a hipped roof *yosemune yane 寄棟屋根; Daizenji Hondou 大善寺本堂 (1286), Yamanashi prefecture.

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*keshou yaneura 化粧屋根裏

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