| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve strength by blocking up both sides of a pair of plate pieces with a sealing material, filling the space between the plate pieces with a foaming material, and providing male and female fitting parts on both sides of the plate pieces. SOLUTION: A siding board SB comprises a pair of plate pieces 11 formed by a color iron plate or the like, a foaming material 12, and sealing materials 13 formed of a semi-hard synthetic resin for blocking up both sides of the plate pieces 11. Secondly, a projecting fitting part 11a comprising a stepped part 11a and a sealing material 13 and a recessed fitting part 11b comprising a rib 11b and a sealing material 13 are formed on both sides of the plate pieces 11, and the sealing material 13 on the fitting part 11b side is provided with a cushion material 14. At the time of construction, plural boards SB are vertically connected to each other through the fitting parts 11a, 11b to be used as a building wall material. The board SB has the plate pieces 11 separated through the seal material 13, so that heat insulation produced by the foaming material 12 can be sufficiently brought out. Thus, the siding board is formed like a box so that it can have a very high strength and the board itself can be used as a wall material satisfactorily.</p> |
