PURPOSE: To obtain the rigid furnace material which can be simply and easily produced, can shorten working time and can improve a working environment by integrally forming a refractory layer or plural heat insulating layers.

CONSTITUTION: This furnace material 10, which is the non-fired refractory heat insulating-furnace material, is constituted by integrally forming the refractory layer 20 and/or the plural heat insulating layers 30. The furnace material 10 can be produced by respectively compression molding the refractory layer 20 and/or the plural heat insulating layers 30 and integrally laminating the respective layers via joining materials 40 (41, 42). The furnace material 10 can be obtd. by another process of compression molding either one layer of the refractory layer 20 and/or the plural heat insulating layers 30, then successively compression molding the other layers atop the above-mentioned layer, thereby integrally laminating and forming the furnace material.