HOUSING MATERIAL AND MANUFACTURING METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a housing material having light weight, excellent in molding property and of which breakage during transportation is suppressed and a manufacturing method of the housing material.SOLUTION: There is provided a housing material 10 having a non-foamable back layer 3 containing a hydraulic material, a silicic acid-containing article and wood flake 3a, a foamable core layer 1 formed on the non-foamable back layer 3 and containing the hydraulic material, the silicic acid-containing article and air bubble 1a formed by an aluminum powder, and a non-foamable front layer 2 formed on the foamable core layer 1 and containing the hydraulic material, the silicic acid-containing article and wood flake 2a. There is provided the housing material 10 in which the foamable core layer 1 is thicker than the non-foamable surface layer 2 and the non-foamable back layer 3 and the back layer 3 is thicker than the surface layer 2. There is provided the housing material 10 in which mass of the surface layer 2:mass of the core layer 1:mass of the back layer 3 is 10 to 20:45 to 70:15:45.SELECTED DRAWING: Figure 1 【課題】軽量で造形性に優れ、運搬時の破損が抑制された建材、及びその製造方法。【解決手段】水硬性材料、ケイ酸含有物、および木フレーク３ａを含む無発泡性裏層３と、無発泡性裏層３の上に形成された、水硬性材料、ケイ酸含有物、およびアルミ粉末の反応により形成された気泡１ａを含む発泡性芯層１と、発泡性芯層１の上に形成された、水硬性材料、ケイ酸含有物、および木フレーク２ａを含む無発泡性表層２と、を備えている建材１０。好ましくは、発泡性芯層１は無発泡性表層２と無発泡性裏層３より厚く、裏層３は表層２より厚い建材１０。表層２の質量：芯層１の質量：裏層３の質量が１０〜２０：４５〜７０：１５：４５である建材１０。【選択図】図１