RENOVATION OF BUILDINGS AS AN ESSENTIAL ELEMENT OF ACTION IN “GREEN DEAL” – A CASE STUDY

The article highlighted that renovation buildings are an essential action in the European Green Deal. The objective of this study was to assess the energy performance of renovation concepts selected building components on multi-family house. Typical Polish 1950s building was used as a baseline reference, and it was shown that very similar renovation concepts can be successfully applied in other buildings that provides good bases to develop standardized solutions. Energy performance of common renovation concepts was assessed both by in situ tests (with an unaided eye and including the use of a thermal imaging camera) and with national calculation methodologies. The renovation concepts included selected building components: improved envelope insulation with exterior windows and doors and heating system. The effects of the performed renovation were supplemented by the calculation of reduction of greenhouse gas emissions into the atmosphere, as a result of reducing the demand for heat supply to rooms.