Prefabricated special laminated slab for building roof

The utility model discloses an assembly type special laminated slab for a building roof, which comprises a reinforcing mesh, a plurality of groups of constructional bars are clamped at the upper part of the reinforcing mesh, each group of constructional bars is provided with a connecting pipe, and the cross section of each connecting pipe is triangular. By means of the design that the transverse steel bars and the vertical steel bars are arranged in a crossed mode, the bearing capacity of the steel bar net piece in the other direction can be improved, so that the strength of the laminated slab is remarkably improved through the steel bars after the laminated slab is machined, the tearing and breaking phenomena of the laminated slab in the using process are reduced, the structural strength is improved, and the service life of the laminated slab is prolonged. The safety is improved; through the arrangement of the connecting pipes, the area for fixing the constructional bars can be increased, the stability can b