Energy Refurbishment Methodology for Heritage Buildings


The goal of the project called “Energy Refurbishment Methodology for Heritage Buildings” (RENERPATH-2) is to establish a specific European pre-normative, focused on the energy refurbishment of heritage buildings, whether public or private use, in parallel with the newly constructed buildings law.

The aforesaid prenormative will take as its starting point, the methodology obtained in the former project (RENERPATH). This methodology will be applied to a group of representative buildings located in the region of Castile and León and in the North and Centre of Portugal, aiming for its optimization and generalization, which would lead to the desired pre-normative.

This Project is being funded by the European Regional Development Fund (ERDF), via Interreg V-A Spain-Portugal (POCTEP) 2014-2020 program.


  • To provide technologies, techniques and tools to characterize and identify energy consumptions and losses in heritage buildings.
  • To integrate these technologies, techniques and tools into the habitual approach regarding conservation, protection and restoration interventions.
  • To assess the impact of the new energy improvements solutions applicable to heritage buildings and establish indicators to manage and monitor these buildings.


  • Energy classification of heritage buildings. Study cases selection.
  • To apply the RENERPATH methodology to the study cases.
  • Results analysis and assessment.
  • Technology transfer actions: European prenormative.

Expected results

  • To apply 3D digitalization techniques to building characterization.

  • Humidity early detection using the reflectivity index.

  • Use of infrared thermography (2D and 3D) to heat losses assessment.

  • To assess the energy effect of potential interventions through BIM modeling and dynamic simulations.

  • Adaptation of other non-destructive techniques to establish ratios and indicators which will be energy rehabilitation guidelines of heritage buildings.






Total budget: 826.045,70 €
Contribution: 346.300,00 €
Duration: January 2017 – September 2019


David Olmedo Vélez

Project manager at Cartif

Industrial and Digital Systems Division


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