The installation aid 512 secures cut tile pieces on hip against slip off. The installation aid is hammered to the cutting edge and attached to the sub-construction with the 60 mm long integrated screw. The drilling of the cut tile pieces is not necessary and short installation time on the hip are guaranteed. The three-fold spring claw also provides secure hold on uneven surfaces or embossed letters on the back of the roof tiles. Different sizes of the installation aid also guarantee a problem-free fixing of thicker roof tiles.