Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data
This study investigates the long-term impact of insulation degradation on building heating energy consumption, with a focus on extruded polystyrene (XPS) insulation. Year-by-year degradation in thermal transmittance was derived from long-term experimental data and applied to prototypical energy mode...
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| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/13/3260 |
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| author | Soo-Hwan Park Seok-Ho Kim Ju-Yeon Jeong Hye-Jin Kim Dong-Hyun Seo |
| author_facet | Soo-Hwan Park Seok-Ho Kim Ju-Yeon Jeong Hye-Jin Kim Dong-Hyun Seo |
| author_sort | Soo-Hwan Park |
| collection | DOAJ |
| description | This study investigates the long-term impact of insulation degradation on building heating energy consumption, with a focus on extruded polystyrene (XPS) insulation. Year-by-year degradation in thermal transmittance was derived from long-term experimental data and applied to prototypical energy models of multifamily apartment buildings and office buildings. Simulations were performed using both Actual Meteorological Year (AMY) and Typical Meteorological Year (TMY) data for six cities representing Korea’s major climate zones. The results showed that insulation degradation led to a significant increase in heating energy consumption from 23.2% to 34.9% in AMY simulations and 23.5% to 36.2% in TMY simulations for multifamily apartment buildings over 15 years. The difference between the AMY and TMY estimates was within 4%, demonstrating the reliability of TMY for long-term performance assessments. Notably, the southern and Jeju zones exhibited higher sensitivity to degradation due to their relaxed insulation standards and lower initial thermal performance. Office buildings were less affected, with increases below 8%, attributed to smaller envelope areas and higher internal heat gains. These findings highlight the need for zone-specific insulation standards and differentiated energy-saving design strategies by building type to ensure long-term energy efficiency. |
| format | Article |
| id | doaj-art-97f63be7e22e43768491e1fdb78cb3ba |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-97f63be7e22e43768491e1fdb78cb3ba2025-08-20T02:35:56ZengMDPI AGEnergies1996-10732025-06-011813326010.3390/en18133260Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental DataSoo-Hwan Park0Seok-Ho Kim1Ju-Yeon Jeong2Hye-Jin Kim3Dong-Hyun Seo4Department of Architectural Engineering, Chungbuk National University, Cheongju 28644, Republic of KoreaBECUBE. Inc., Cheongju 28644, Republic of KoreaDepartment of Architectural Engineering, Chungbuk National University, Cheongju 28644, Republic of KoreaDepartment of Architectural Engineering, Chungbuk National University, Cheongju 28644, Republic of KoreaDepartment of Architectural Engineering, Chungbuk National University, Cheongju 28644, Republic of KoreaThis study investigates the long-term impact of insulation degradation on building heating energy consumption, with a focus on extruded polystyrene (XPS) insulation. Year-by-year degradation in thermal transmittance was derived from long-term experimental data and applied to prototypical energy models of multifamily apartment buildings and office buildings. Simulations were performed using both Actual Meteorological Year (AMY) and Typical Meteorological Year (TMY) data for six cities representing Korea’s major climate zones. The results showed that insulation degradation led to a significant increase in heating energy consumption from 23.2% to 34.9% in AMY simulations and 23.5% to 36.2% in TMY simulations for multifamily apartment buildings over 15 years. The difference between the AMY and TMY estimates was within 4%, demonstrating the reliability of TMY for long-term performance assessments. Notably, the southern and Jeju zones exhibited higher sensitivity to degradation due to their relaxed insulation standards and lower initial thermal performance. Office buildings were less affected, with increases below 8%, attributed to smaller envelope areas and higher internal heat gains. These findings highlight the need for zone-specific insulation standards and differentiated energy-saving design strategies by building type to ensure long-term energy efficiency.https://www.mdpi.com/1996-1073/18/13/3260XPS (extruded polystyrene)thermal transmittancelong-term degradationenergy performanceprototypical energy modelTypical Meteorological Year |
| spellingShingle | Soo-Hwan Park Seok-Ho Kim Ju-Yeon Jeong Hye-Jin Kim Dong-Hyun Seo Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data Energies XPS (extruded polystyrene) thermal transmittance long-term degradation energy performance prototypical energy model Typical Meteorological Year |
| title | Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data |
| title_full | Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data |
| title_fullStr | Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data |
| title_full_unstemmed | Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data |
| title_short | Detailed Building Energy Impact Analysis of XPS Insulation Degradation Using Existing Long-Term Experimental Data |
| title_sort | detailed building energy impact analysis of xps insulation degradation using existing long term experimental data |
| topic | XPS (extruded polystyrene) thermal transmittance long-term degradation energy performance prototypical energy model Typical Meteorological Year |
| url | https://www.mdpi.com/1996-1073/18/13/3260 |
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