PROBLEM TO BE SOLVED: To provide a luxurious outer wall material and its construction method having a simple structure, a light weight, a low cost, a construction work easy, and a low-cost outer wall material for construction and maintenance, capable of maintaining durability against earthquakes, capable of exhibiting excellent performance of earthquake-resistant strength, seismic isolation, and vibration control.;SOLUTION: A first flat plate 2 having a rectangular planar shape including stone and a second flat plate 4 composed of an aluminum honeycomb structure 3 having a predetermined length and width and thickness are laminated. A plurality of joining locking members 8 and 9 having projecting members 80 projecting outward from an outer surface 7 of a backing member 6 are provided on an appropriate portion of the outer surface 7 of the backing member 6 in the second flat plate 4 in an outer wall material 1 for building including stone.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
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