In the Bustěhrad laboratories of the University Center for Energy Efficient Buildings of CTU, we have been verifying the behavior of three different perimeter wall solutions of industrial hall buildings since the beginning of July 2019.
The aim of the research project is to find out how the layers of plants, substrate and possibly other added layers affect the thermal-moisture regime of the perimeter wall. The results will be compared with the data measured in two reference structures of the perimeter structure, which are currently commonly used for indoor structures. Another purpose of the long-term experiment is to improve the irrigation control system of the green facade.
A climatic room with a controlled internal environment is used for the tests, which is equipped with an automatic system for recording data from the test fields and measuring local microclimate conditions near the facade. The perimeter wall of the climate room contains six openings measuring 3 m x 3.2 m in which real-size models of the perimeter structure can be fitted. The south-west oriented wall is exposed from the outside to real climatic conditions.
Two test fields are used for the comparative experiment. In the first of them, two types of sheet metal perimeter structures, which are commonly used today for indoor buildings, are built in. In the second test field, there is a composition in which the outdoor trapezoidal sheet is replaced by a green facade with an integrated drip irrigation system. The pre-grown greenery was supplied by LIKO-S.