Sheet-like composite component, in particular vehicle body part

Sheet-like composite component, in particular vehicle body part, comprising a material composite having an outer layer (26), a position adjacent to the outer layer barrier layer (24) and a support structure (16) on which the barrier layer is arranged, and comprises a core (18) at the the barrier layer (24) facing side with a first outer layer (20) and to which the barrier layer (24) opposite side with a second outer layer (22) is provided, wherein the barrier layer comprises a mapping of structural features of the support structure (16) on the outer layer (26) is prevented, characterized in that the barrier layer (24) and the support structure (16) have coefficients of thermal expansion, which are selected such that a deformation of the material composite to a temperature change in a range between -50 ° C and + 80 ° C at least is largely suppressed, and that the barrier layer (24) has a layered structure, the individual layers partly of a fiber-free polyurethane material and partially formed from a fiber-containing polyurethane material are.