This article presents the current state at the elaboration of a moisture atlas. The atlas shows results of coupled heat and moisture simulations of one- and two-dimensional wall assemblies and construction details. At first, the long-term monitoring in a test house is described and measurement data are compared with simulation results. In a second part, the test house wall assembly is reviewed by means of the methods and criteria of the moisture atlas. The results are presented corresponding to the structure of the atlas.