Insulation board with mortar barrier layer

The utility model relates to a thermal insulation board with a mortar barrier layer, which comprises a thermal insulation layer, a plurality of web wires and a plurality of limiting blocks, inner-layer reinforcing meshes are arranged on two sides of the thermal insulation layer, a plurality of inner meshes are arranged on the inner-layer reinforcing meshes, an outer-layer steel wire mesh is arranged on the outer side of the inner-layer reinforcing meshes, a plurality of outer meshes are arranged on the outer-layer steel wire mesh, and a plurality of outer meshes are arranged on the outer-layer steel wire mesh. A metal wire screen is arranged between the inner-layer reinforcing mesh and the outer-layer steel wire mesh, web wires penetrate through the heat preservation layer, the inner-layer reinforcing mesh and the metal wire screen, the ends of the web wires are clamped to the outer-layer steel wire mesh, one end of each limiting block abuts against the heat preservation layer, and the other end of each limit