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saobuchi tenjou@ŠÆ‰“Vˆä
KEY WORD :@architecture / general terms
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Also written ž¨‰“Vˆä. A board and batten ceiling. A simple ceiling made of lightweight boards laid in one direction over regularly spaced battens *saobuchi ŠÆ‰, placed at a right angle to the boards. The battens are usually spaced 30 to 40 ‡p apart and made of cypress, cedar, bamboo or occasionally of small, unstripped red pine or cherry branches. Perhaps the earliest use was in monks' dwellings *soubou ‘m–[, of the 7- 8c. It was also used in ordinary dwellings, juutaku Z‘î, and sometimes even used in formal rooms *zashiki À•~. In temple buildings the board and batten ceiling is usually found in the aisles *hisashi ›ù, in sections of the core *moya •ê‰®, and in the worship area *raidou —ç“°. In *sukiya ”Šï‰® style buildings that incorporated features of tea ceremony houses, the battens are often left in a natural, rough condition. In the formal shoin style *shoin-zukuri ‘‰@‘¢, the corner edges are carefully squared. Viewed in cross section the ceiling reveals several distinctive details. Saruboomen ‰Ž–j–Ê, a batten with six-sided chamfers, was used from the Kamakura period onward. A simple type of batten, hirabuchi •½‰, is typified by a flat rectangular cut. Other battens are chamfered at a 45‹angle *kirimen Ø–Ê. To prevent sagging of the boards or the appearance of gaps, small slip fasteners *inago ˆîŽq, were attached to the reverse sides. Slip fasteners were unnecessary if the boards were secured by scarf joints *sogitsugi ŽEŒp.
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a) tenjou-ita “Vˆä”@b) *saobuchi ŠÆ‰@c) *mawaribuchi ‰ñ‰
d) *kokabe ¬•Ç@e) uchinori nageshi “à–@’·‰Ÿ@f) tsukegamoi •tŠ›‹ (see *kamoi Š›‹)
Old Anzai ˆÀ¼ house (Chiba)

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REFERENCES:
*saruboo tenjou ‰Ž–j“Vˆä@
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NOTES
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