BUILDING PANEL

PURPOSE:To enhance the fire resistance and flame resistance of both inner and outer surfaces of a building panel and to facilitate the attachment of the building panel to a reinforcing frame by successively laminating a cementituous paint layer, a nonwoven fabric or fabric layer and a cementituous paint layer to the single surface of a rock wool layer. CONSTITUTION:For example, a building panel 1 is used so as to be laminated to the inside of a concrete outer wall. In this case, the building panel 1 is formed by successively laminating a concrete type paint layer 3a, a nonwoven fabric or fabric layer 4 and a concrete type paint layer 3b to one surface of a lock wool layer 2 and the protective layer 5 thereof is formed from the respective layers 3a, 4, 3b. A protective layer composed of a nonwoven fabric or fabric layer perfectly impregnated with concrete paint not shown in a drawing may be formed to the single surface of the lock wool layer 2. By this constitution, the fire resistance and flame resistance of both inner and outer surfaces of the building panel 1 are enhanced and the building panel 1 is easily attached to a reinforcing frame not shown in the drawing by the flexibility of the protective layer 5 and the rock wool layer 2.