Analysis of Energy Performance and Indoor Climate Conditions of the Slovak Housing Stock Before and After its Renovation

Abstract

The presented study summarises results of two projects which were carried out in Slovakia in the past two years. The first part of the study deals with energy performance and thermal comfort in non-renovated and energy retrofitted dwellings. The second part of the presented paper is focusing on indoor air quality and its dependence on energy renovation. Energy evaluation and analysis of thermal environment were carried out in six pairs of residential buildings while indoor air quality was investigated in three pairs of dwellings. Each pair of dwellings contained from identical apartment buildings in term of construction systems. One of the buildings has been recently renovated, while the other one is in its original condition. Both experimental measurements and subjective evaluation using questionnaires have been used. Temperature, relative humidity and CO2 concentration were measured in the bedrooms of the apartments. This study gives a great view on current state of energy consumption and indoor environment of Slovak residential stock.