Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain
This study examines the impact of thermal insulation-based renovations on the overheating risk in residential buildings across different climatic conditions in Spain. While the European Union (EU) regulations aim to improve energy efficiency in buildings, increasing thermal insulation can lead to si...
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| Format: | Article |
| Language: | English |
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Sciendo
2025-01-01
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| Series: | Environmental and Climate Technologies |
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| Online Access: | https://doi.org/10.2478/rtuect-2025-0030 |
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| author | Arbulu Markel Otaegi Jorge Rodríguez-Vidal Iñigo Oregi Xabat |
| author_facet | Arbulu Markel Otaegi Jorge Rodríguez-Vidal Iñigo Oregi Xabat |
| author_sort | Arbulu Markel |
| collection | DOAJ |
| description | This study examines the impact of thermal insulation-based renovations on the overheating risk in residential buildings across different climatic conditions in Spain. While the European Union (EU) regulations aim to improve energy efficiency in buildings, increasing thermal insulation can lead to significant energy savings, especially in areas with high heating demand. However, excessive insulation may raise indoor temperatures, increasing the risk of overheating. The research focuses on a typical multi-family residential building from the 1960s and 1970s, initially lacking insulation, and analyses various renovation strategies in different climatic conditions in Spain. The study evaluates four types of passive renovations—facade exterior insulation, roof insulation, window replacement, and their combination – at three efficiency levels – basic, national building code (NBC) required, and EnerPHit standard. A three-stage methodology is employed: identifying archetypes and renovation strategies, conducting a Building Performance Simulation (BPS), and assessing overheating hours based on the CIBSE thermal comfort model. Results reveal that climatic conditions significantly influence overheating risks, identifying critical zones in Spain where overheating may be a concern. The findings suggest that these areas require more targeted solutions to prevent overheating while improving energy efficiency through renovations. |
| format | Article |
| id | doaj-art-a99c878a6e854fa294ce6d399c9ddd94 |
| institution | Kabale University |
| issn | 2255-8837 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Environmental and Climate Technologies |
| spelling | doaj-art-a99c878a6e854fa294ce6d399c9ddd942025-08-25T06:12:11ZengSciendoEnvironmental and Climate Technologies2255-88372025-01-0129144745910.2478/rtuect-2025-0030Overheating Risk Assessment in Insulation-Based Energy Renovations in SpainArbulu Markel0Otaegi Jorge1Rodríguez-Vidal Iñigo2Oregi Xabat3CAVIAR Research Group, Department of Architecture, University of the Basque Country UPV/EHU, Plaza Oñati, 2, 20018 Donostia – San Sebastián, SpainCAVIAR Research Group, Department of Architecture, University of the Basque Country UPV/EHU, Plaza Oñati, 2, 20018 Donostia – San Sebastián, SpainCAVIAR Research Group, Department of Architecture, University of the Basque Country UPV/EHU, Plaza Oñati, 2, 20018 Donostia – San Sebastián, Spain4Department of Architecture, University of the Basque Country UPV/EHU, Plaza Oñati, 2, 20018 Donostia, San Sebastián, SpainThis study examines the impact of thermal insulation-based renovations on the overheating risk in residential buildings across different climatic conditions in Spain. While the European Union (EU) regulations aim to improve energy efficiency in buildings, increasing thermal insulation can lead to significant energy savings, especially in areas with high heating demand. However, excessive insulation may raise indoor temperatures, increasing the risk of overheating. The research focuses on a typical multi-family residential building from the 1960s and 1970s, initially lacking insulation, and analyses various renovation strategies in different climatic conditions in Spain. The study evaluates four types of passive renovations—facade exterior insulation, roof insulation, window replacement, and their combination – at three efficiency levels – basic, national building code (NBC) required, and EnerPHit standard. A three-stage methodology is employed: identifying archetypes and renovation strategies, conducting a Building Performance Simulation (BPS), and assessing overheating hours based on the CIBSE thermal comfort model. Results reveal that climatic conditions significantly influence overheating risks, identifying critical zones in Spain where overheating may be a concern. The findings suggest that these areas require more targeted solutions to prevent overheating while improving energy efficiency through renovations.https://doi.org/10.2478/rtuect-2025-0030bps (building performance simulation)climateenergy renovationenerphitnational building code (nbc)thermal comfortthermal insulation |
| spellingShingle | Arbulu Markel Otaegi Jorge Rodríguez-Vidal Iñigo Oregi Xabat Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain Environmental and Climate Technologies bps (building performance simulation) climate energy renovation enerphit national building code (nbc) thermal comfort thermal insulation |
| title | Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain |
| title_full | Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain |
| title_fullStr | Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain |
| title_full_unstemmed | Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain |
| title_short | Overheating Risk Assessment in Insulation-Based Energy Renovations in Spain |
| title_sort | overheating risk assessment in insulation based energy renovations in spain |
| topic | bps (building performance simulation) climate energy renovation enerphit national building code (nbc) thermal comfort thermal insulation |
| url | https://doi.org/10.2478/rtuect-2025-0030 |
| work_keys_str_mv | AT arbulumarkel overheatingriskassessmentininsulationbasedenergyrenovationsinspain AT otaegijorge overheatingriskassessmentininsulationbasedenergyrenovationsinspain AT rodriguezvidalinigo overheatingriskassessmentininsulationbasedenergyrenovationsinspain AT oregixabat overheatingriskassessmentininsulationbasedenergyrenovationsinspain |