1 Depending on the type of tile, the clay roof tiles can cost anywhere from $0.30 to $3 per tile without any sort of professional installation. 2  At ebay.com, the price of a red âSâ type Clay Roof Tile is $716 per pallet or $2 per tile. At ebay.com, the price of a red âSâ type Clay Roof Tile is $716 per pallet or $2 per tile. 2  Manufacturers in China can offer much lower rate at $0.30 to $0.60 per piece. 3  When installation prices are involved, plan on spending anywhere from $7 to as much as $13 per square foot for an entire roof of clay tiles.