BUILDING MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL

摘要

A building material capable of sustaining a sanitary condition for a long period by rapidly draying residual water remaining on the surfaces of the building material, comprising units having grooves of 0.5 to 3 mm or less in width and 0.5 to 2 mm in depth directed in multiple directions, and island-like slip preventing projected parts surrounded by the grooves and having the size of 5 x 5 mm to 25 to 25 mm, characterized in that the surfaces of the island-like slip preventing projected parts are formed in a flat or a curved shape.