Case study VI: Insulation materials choice in building retrofitting: the influence of social determinants in the Spanish context

Abstract

In Europe, energy retrofitting of the building stock is a key to meet the commitments made under the Paris Agreement. Although several studies and pilot projects exist, the refurbishment rate in most European Union (EU) countries is still below expectations. This chapter aims to analyze social and cultural barriers to energy retrofitting, focusing on the choice of materials for thermal insulation. For this purpose, we use quantitative and qualitative data provided by professionals in the building sector. Results show that decision-making is driven by the commercial penetration of a given product. The lack of expertise among professionals hinders the transmission of the benefits of alternative materials. Besides, there is little dissemination of good practices and professionals are suspicious of long-term performance. Our findings can help in supporting the implementation of new training programs and policies for a transition toward an energy-efficient building stock in the EU.