Aircraft internal insulation structure

<?abstract ?>The invention relates to an insulation structure for the internal insulation of an aircraft according to the preamble of claim 1. The generically improved insulation structure will enable appropriate measures to keep the in a foil envelope-wrapped insulation dry, which also minimizes the transport of water in the insulation package and the package is supported. The insulating structure is made of a insulation package that is completely enclosed by a foil envelope and disposed within an intermediate space. The film envelope is realized with a diffusion of gases and liquids permitting film material, with the function of the diffusion direction of a diffusing through the foil wall a different diffusion behavior of the medium is implemented. The film envelope is on the one hand realized with an asymmetrical foil design that is from several wrapping films which are hydrophilic or hydrophobic natured integrated. The foil wrapper on the other hand equipped with a symmetrical film construction which is provided with a wrapping film which is a nature hydrophilic and / or hydrophobic, realized.