The invention relates to a three-layer heat-preservation decoration
composite plate which comprises a
surface layer, an intermediate layer and a bottom layer; the
surface layer is the decoration plate layer; the intermediate layer is the
polyurethane foam
colloid layer; the bottom layer is the foam material layer; the decoration plate layer is adhered tightly to the foam material layer through the
polyurethane foam
colloid layer to construct the three-layer heat-preservation decoration
composite plate. A connecting piece is arranged on the back surface of the
composite plate; the connecting piece is threaded through the intermediate layer and the bottom layer; the inner end of the connecting end is adhered to the inner side of the
surface layer through strong
adhesive; the outer end of the connecting piece is provided with a
metal hanging piece; a screw is arranged on the
metal hanging piece; the three-layer heat-preservation decoration composite plate can be applied in constructions, so as to reduce the construction load, shorten the construction period and save labor resources; in the heat-preservation decoration composite plate, the intermediate layer is fixed with the bottom layer and the connecting piece is mounted; the connecting piece is reinforced and fixed through the adhesion with the foam
colloid layer so that the effect of double-layer fixation is realized; the connecting is adopted to enable the
surface plate to be directly fixed on the wall body; the heat-preservation decoration composite plate is high-temperature resistant, has no deformation and good heat-preservation property.