| 摘要 |
PROBLEM TO BE SOLVED: To provide a roofing material which has unprecedented massiveness and workability, and wherein a waterproof function, a heat insulating function, an anti-dew-condensation function, a snow guard function, etc. are formed. SOLUTION: In this roofing material A, a male-female coupling structure as a drop-in structure is formed at a side edge in a width direction; an upward-protruded engaging and waterproof piece 13, a top surface 14 where a base of the piece 13 is protruded to a lowermost side, and a fixing piece 15 where a forward end of the top surface 14 is suspended downward and where a forward end is protruded to the uppermost side are formed at the uppermost-side forward end of facing 4; and an upward-protruded vertical piece 6a, downward-protruded stepped facing 6, a protrusive piece 6b where an end of the vertical piece 6a is protruded to the lowermost side, a backmost piece 8 where the vicinity of the lowermost-side forward end of the facing 4 is protruded downward, and an insertion piece 9 where a forward end of the backmost piece 8 is protruded to the lowermost side are formed at the lowermost-side forward end of the facing 4. COPYRIGHT: (C)2004,JPO&NCIPI
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