1 It runs $7-$10 or more a square foot for deluxe concrete tiles, or $11,900-$21,000 or more for 1,700-2,100 square feet. 2  Installing a roof of ceramic clay tiles starts around $7-$10 a square foot for lower-grade tiles in standard shapes and earth colors, or $11,900-$21,000 for a basic 1,700-2,100-square-foot roof. If you're switching to tile from a lighter-weight roofing material, you'll need to have the building inspected by a building engineer and the roof supports possibly reinforced or replaced, easily adding $1,000-$10,000 or more to the cost.