Energy Rehabilitation of Residential Buildings: Proposed Solutions for Bragança City

Portugal is committed to achieving carbon neutrality by 2050, intending to comply with the Paris Agreement on climate change and global warming. Renovating existing buildings is particularly relevant for decarbonization, and the long-term renovation strategy (LTRS) defines how to achieve this goal. In Bragança city, more than 50% of the existing buildings are recent, built after 1981, and only 6% of them consider the first regulation based on the Energy Performance of Buildings Directive. It can be concluded that there is a considerable number of buildings, built without any legislation or based on poor thermal legislation, which requires adaptations to the new requirements of thermal comfort and energy performance in the coming years. Based on a study of the residential energy buildings characterization in the city of Bragança, this work intends to present a set of intervention proposals to improve their energy efficiency, meeting the requirements of recent national legislation on the energy performance of buildings following the LTRS Principles.

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