| 摘要 |
PROBLEM TO BE SOLVED: To secure the expansion margin of a heat insulation expansion material layer due to heating and secure the fire resistant performance of the heat insulation expansion layer by laminating the heat insulation expansion material layer on the surface of an outer wall material, and fixing it through a spacer by a fixing fitting. SOLUTION: A beat insulation expansion material layer 2 and a metal plate 3 are laminated on the surface of the outer wall material 1 of a concrete plate or the like to be integrated by a fixing fitting 5 through a spacer arranged on a peripheral part so as to constitute a fire protection and resistant wall structural body. The heat insulation expansion material layer 2 comprises a thermoplastic resin, a rubber substance, a phosphorous compound, a neutralized thermal expansion graphite, a vermiculite, and a resin composition containing an inorganic filler or the like, combustion expansion is performed by heating, thickness is increased 1.1-30 times, and a fire resistant heat insulation layer is formed by a combustion residue. The spacer 4 is made the thermoplastic resin of the melting point of 60-400 deg.C, Thus, the spacer 4 is melted and deformed by heating or burned out, the expansion of the heat insulation expansion material layer 2 is not blocked, and prescribed fire resistant performance can be secured.
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