The project concerns the energy upgrade of the buildings of the Radio Stations of the Greek Radio Television ERT in Corfu and Zakynthos The works that will be implemented in both buildings concern the following shell thermal insulation and in particular waterproofing and thermal insulation of roofs Replacement of existing frames by new ones with thermal break Replacement of existing air conditioning heating system with air conditioning system VRV InverterThe implementation of the project will achieve the energy upgrade of both buildings in category B of the KENAK Buildings Energy Performance Regulation