Abstract: The construction of a wall module of superior insulation properties required for passive buildings, the method of its industrial production for easy to install at erection site as technical design of the load bearing steel truss of the defined height, width and thickness, made of appropriate shaped steel elements, of appropriate dimensions, positioned appropriately to form the structure and fixed in compliance with all relevant requirements of the professional building practice and regulations. Steel elements are mostly C elements, horizontal (1.1) and vertical (1.2) C elements with fastening mechanisms fastened on the outside horizontally (2.1) and vertically (2.2) with internal (1.3) and external (1.4) spacers positioned on their sides of low thermal conductivity, on which internal (6.2) and external (6.3) lining panels are placed of the appropriate thickness defining in such manner the total thickness of the wall.