These strips of wood are priced at anywhere from $3-$5 per square foot. Pretty much the only other materials needed for the installation of terracotta roofing tile will be the hammer and nails that will be used to secure the tiles in place.These can be found at any local hardware store.hese strips of wood are priced at anywhere from $3-$5 per square foot. Pretty much the only other materials needed for the installation of terracotta roofing tile will be the hammer and nails that will be used to secure the tiles in place. These can be found at any local hardware store.