Abstract: A roofing tile having on its bottom surface a rear edge flange, a pair of stabilizing pawls and a plurality of longitudinal ribs, said tile also having along its front edge bottom surface a lateral rib and further having projections on its lateral rib and recesses on its rear edge flange; said tile is able to be supported on a shingle by said stabilizing pawls and longitudinal ribs and is also stabilized by engaging the projections with the recesses of a subjacent tile, as a result the tile may distribute given load to several supporting points, preventing itself from being cracked and also may be installed regularly with ease without being disordered.