| 摘要 |
PROBLEM TO BE SOLVED: To provide a ribbed wall material which can self-retain a shape by simple working when the ribbed wall material is kept in a flat shape or a curved shape, which can reduce weight, and which is excellent in heat insulating properties, sound insulating properties and fire resistance. SOLUTION: The ribbed wall material is formed of: a wall material body 1 which is formed in such an uneven cross-sectional shape that a streak rib portion 10, formed by being bent in the state of protruding to the outer surface, and a planar portion 11 are alternately formed; and a rigid foamed material layer 2 which is formed all over the inner surface of the wall material body in the state of being infilled into the streak rib portion. Additionally, a fire-resistant layer 5 is formed on the inner surface of the rigid foamed material layer. COPYRIGHT: (C)2008,JPO&INPIT
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