Building board and method for manufacturing the same

A building board having on an upper surface thereof a plurality of wood board patterns containing a horizontal, linearly arranged recessed groove for separating at least two of the plurality of the wood board patterns and a plurality of obliquely formed grooved recessed portions for forming the plurality of wood board patterns, the building board comprising:

• an inorganic base material;
• an undercoat coating;
• an overcoat coating;
• and
• an inkjet coating, wherein
• the inorganic base material, the undercoat coating, the overcoat coating, and the inkjet coating are successively formed on the surface of the inorganic base material,
• the inorganic base material has on an upper surface thereof a plurality of wood board patterns containing a horizontal, linearly arranged recessed groove for separating at least two of the plurality of the wood board patterns and a plurality of obliquely formed grooved recessed portions for forming the plurality of wood board patterns,
• the undercoat paint has a pigment weight concentration (PWC) of 40 to 60%,
• the overcoat coating has a lower pigment weight concentration (PWC) than that of the undercoat paint,
• the undercoat coating and the overcoat coating have different hues,
• the wood board patterns of the building board have different depths of color due to variations in the position and the thickness of the overcoat coating, and
• the wood board patterns of the building board have different hues due to partial arrangement of the inkjet coating having a different hue from the overcoat coating.