Guidelines for energy efficiency HBIM development of existing buildings

This pdf provides a technical guideline for an energy audit of a historical building to support its energy and environmental improvement (as shown in the Energy Audit Process Flow schema based on the EN 16247-2:2014, see par 1.4), from the analyses to the design stage up to the Energy Performance Contracting implementation. Each section of the guideline can also be used as technical specification for tender activities, along with the related template Annex.

This guidelines’ document was developed within the ENI CBC Med BEEP project and aims to enhance the capacity of public local administrations to design, and realise innovative energy and environmental improvement on historic public buildings, through a multidisciplinary and integrated digital approach (using Building Information Modelling and performance-based design to develop an Energy Efficient Heritage Building Information Model - EE-HBIM). The guideline is based on the testing of this emerging technology on built heritage in eight different EU and non EU Mediterranean countries to demonstrate its scalability to the entire building stock of the Med area. The project will provide public administrations with a powerful method for the energy rehabilitation of public buildings to be supported with private funds through the Energy Performance Contracting. The HBIM model should integrate previously collected information on the building (geometric, diagnostic, environmental data), to create a comprehensive documentation of the building's current state. Moreover, the HBIM model will be used as a basis to inform the subsequent simulation-based energy-environmental improvement concept, through energy renovation scenarios that are both compatible with the identified historic buildings and capable to enhance its energy and environmental performance.