High-performance buildings became necessary in terms of the environment and energy consumption. The wooden houses report high efficiency in this regard. This paper contains an analysis of selected light-weight wooden envelope structure designed in the nearly zero-energy demand for heating standard. Evaluated will be the energy and hygrothermal performance of the selected structure. These will be based on results of pavilion measurements (constant interior conditions and real external boundary conditions) and results of measurements in climate chambers during various boundary conditions. Afterwards, the results of numerical simulations will be presented, configured according to experimental measurements.