Ventilated facade systems are widely used in the buildings of various functionalities. In the paper the research results on thermal insulation properties of ventilated facade systems are represented. Two constructive systems were considered – traditional widespread in practice and new system developed by authors. In the new system vertical profiles are replaced by perforated tapes made of anticorrosion steel and granite tiles are fastened to the supporting structure in the nodal points. Numerical thermal analysis of two described systems was carried out using software TEPL. Solution of threedimensional steady-state conductivity was obtained in the program. The values of thermal resistance and thermal uniformity coefficient of the structures were compared. The new system has better thermal insulation properties (higher value of thermal resistance) than traditional one.