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There is a group of building structures having facade rendering as surface finishing, except for a large family of glazing facades and facing facades. This group of structures puts the finishing touches to our everyday space in architectural terms considering not only the colours, but also various facade rendering finishes structure. On the contrary, in practice there are different kinds of facade rendering disorders. In terms of generation of facade rendering disorders, facades rendering sloughing as well as cracks formation within the facade rendering or in blocks and fittings joint areas, which can cause extensive defects, are the biggest problematic issues.

Renovation of the building stock is an acknowledged issue in the building industry. Constructional and technical requirements on residential buildings have significantly changed, as well as demands on flats equipment and aesthetic quality of the building and surrounding urban space. Several years "boom" of large-scale housing renovation in Slovakia has resulted in colour, shape and material diversity of residential buildings facade. The paper presents selected aspects of residential buildings renovation, related to their facade components. An important part of the renovation design should be prevention of defects, particularly of insulation systems. Several years after buildings insulation first colonies of microorganisms form on the surface of insulated facades and results in the formation of “green skin” on building façades. It has been observed that up to 80 % of insulated buildings are affected by this greening. This microbial colonization of buildings causes aesthetic problems and can lead to degradation and spalling of the coating [1].

Glass is remarkable material and its functionality is significantly enhanced when it is processed or altered to provide added intrinsic capabilities. The overall performance of glass elements in a building can be further enhanced when they are designed to be part of a complete façade system. Finally, the façade system delivers greater performance to both the owner and the occupants of the building. A limited number of facade technologies or combinations of technologies can be evaluated in a field test program, for the reason of both resource constraint and the practical use. The specific method can be used to determine what technologies are to be selected for the research. It based on technical and market objectives, surveys of commercially-available technologies, manufacturers, architects and engineers, utilities, and other stakeholders.