Existing buildings are far more numerous than new buildings but have inferior energy performance – often by a very large margin. They contain energy-consuming systems to provide building services, many of which are elderly, inefficient, or neglected. Improvement of existing buildings, and the systems within them, is a huge task and an essential purpose of the EPBD.
In the Concerted Action EPBD, it is Core Team 2 that deals with existing buildings and their technical building systems. The most relevant parts of the EPBD are:
Existing buildings (EPBD Article 7)
Technical building systems (EPBD Article 8)
Inspection of heating air-conditioning systems (EPBD Articles 14 & 15)
Reports on the inspection of heating and air-conditioning systems (EPBD Article 16)
Other parts of the EPBD, dealt with primarily by other Concerted Action teams, are also relevant to existing buildings. They are:
Minimum energy performance requirements (EPBD Article 4)
High-efficiency alternative systems when undergoing major renovation (EPBD Article 6)
The principal activity is organising meetings and technical discussions that assist Member States in their implementation of the EPBD, allowing them to share experience and investigate problems and opportunities. Occasionally that may be extended to working groups or study tours on specialised topics that need more detailed attention. The main themes for Core Team 2 are:
Recent CEN standards, the potential for sharing methods of data collection and analysis, long-term renovation strategies, and cross-over with the Energy Efficiency Directive and Renewable Energy Directive are among the wider interests to be explored.