The optimisation of the shape of the tiles of the ITER like wall for JET is reviewed with a heat load software which is independent from the one used for the detailed design of the tiles. A particular emphasis is set on the tile edge loads, that are heated by flux tubes penetrating in the toroidal and poloidal gaps. The methodology is presented, along with the detailed description of the analysis for the A2 ICRH limiter. The results are summarised for the other main chamber limiters. The conclusion of the survey is that the edge heating contributions are less than 20%, so that the tile temperature is predominantly the one caused by the main face heating. Plasma operation will not be limited by the tile edges, which is the aim of a safe design.