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Buildings are the only resource growing constantly. Although relevant data for Serbia is not available, it is presumed that even more than 50% of energy production is spent on buildings in our country. This conclusion is based on two facts: the present industrial production and the state of buildings. In order to establish measures for energy efficient refurbishment, one residential building was analyzed in Belgrade. The chosen building represents the construction period when application of thermal insulation was not obligatory according to building regulation. As more than 35% of buildings were built in that period, they represent great potential for energy savings through the process of refurbishment

Numerous scientific researches show that the activities connected with building materials produce significant negative environmental effects. Observed from the point of architecture, the use of building materials is found to be one of the critical factors of environmental pollution and degradation. The purpose of introducing architectural interventions, including proper selection, is the reduction of the negative environmental impact of building materials. The aim of this paper is to define, from the ecological aspect, basic principles for the selection of building materials. First, principles were defined through the all - inclusive analysis of every phase in the life cycle of building materials. Summing categories: embodied energy and embodied CO2 are discussed afterwards. In the order to simplify the procedure of arriving at a decision, priorities in selection were emphasized in every separate segment of this paper. The selection of building materials with reduced negative environmental impact (ecologically correct building materials) is one of the key decisions in the process of designing ecologically correct buildings

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Traditional Vojvodina house represents an important part of the building stock of the northern Serbian province of Vojvodina. The research examines the thermal transmittance of the walls of rammed earth, which is the basic structural and façade element of traditional Vojvodina house, in two ways: by calculations in accordance with Serbian regulations and by measuring in situ. Parameters obtained from the measurements are compared with the calculated values for the three typical traditional Vojvodina rammed earth single family residential houses. The comparison between the values of the heat transfer coefficient, obtained by the calculation, and the results determined by in situ measurements show significant differences. It indicates that the thermal characteristics are better than calculated ones according to national regulations, but at the same time that, due to the complexity of the rammed earth walls and differences in the rammed earth structures, the results differ from case to case and can not be standardized.