Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs
This study examines existing buildings in Haikou in China under tropical island climate conditions. It presents three retrofit design models for greenhouses roofs (GHR), green roofs (GR) and photovoltaic roofs (PVR). The carbon cost of each retrofit roof model is calculated in the production and tra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/15/2/299 |
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| author | Dawei Mu Wenjin Dai Yixian Zhang Yixu Shen Zhi Luo Shurui Fan |
| author_facet | Dawei Mu Wenjin Dai Yixian Zhang Yixu Shen Zhi Luo Shurui Fan |
| author_sort | Dawei Mu |
| collection | DOAJ |
| description | This study examines existing buildings in Haikou in China under tropical island climate conditions. It presents three retrofit design models for greenhouses roofs (GHR), green roofs (GR) and photovoltaic roofs (PVR). The carbon cost of each retrofit roof model is calculated in the production and transportation phases of building materials, construction, and demolition. The changes in electricity consumption, water consumption, and plant carbon reduction are coupled to calculate the carbon reduction generated by each phase of the use of the retrofitted roofs. The carbon reduction per unit area for GHR, GR and PVR over the life cycle (20 years) is then comprehensively calculated. The life cycle carbon reduction per unit area is 262.57 kg·m<sup>−2</sup> for GHR, 127.41 kg·m<sup>−2</sup> for GR and 2567.12 kg·m<sup>−2</sup> for PVR. Among the three retrofit methods, PVR has the greatest potential for reducing carbon emissions. The study can as a guide for implementing carbon reduction measures in tropical island areas. Domestic research on rooftop greenhouses also focuses on technology, yield, and energy consumption, mostly for northern regions with cold winters, and less research on rooftop greenhouses applied to regions with hot summers and warm winters. But domestic and foreign studies on the potential of rooftop greenhouses to reduce emissions have not yet been combined with plant cultivation of hydroelectric carbon emissions and plant carbon sequestration. |
| format | Article |
| id | doaj-art-a39a6891b5ed4bee8570240b4b03f5c1 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-a39a6891b5ed4bee8570240b4b03f5c12025-01-24T13:26:31ZengMDPI AGBuildings2075-53092025-01-0115229910.3390/buildings15020299Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit DesignsDawei Mu0Wenjin Dai1Yixian Zhang2Yixu Shen3Zhi Luo4Shurui Fan5College of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaCollege of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaThis study examines existing buildings in Haikou in China under tropical island climate conditions. It presents three retrofit design models for greenhouses roofs (GHR), green roofs (GR) and photovoltaic roofs (PVR). The carbon cost of each retrofit roof model is calculated in the production and transportation phases of building materials, construction, and demolition. The changes in electricity consumption, water consumption, and plant carbon reduction are coupled to calculate the carbon reduction generated by each phase of the use of the retrofitted roofs. The carbon reduction per unit area for GHR, GR and PVR over the life cycle (20 years) is then comprehensively calculated. The life cycle carbon reduction per unit area is 262.57 kg·m<sup>−2</sup> for GHR, 127.41 kg·m<sup>−2</sup> for GR and 2567.12 kg·m<sup>−2</sup> for PVR. Among the three retrofit methods, PVR has the greatest potential for reducing carbon emissions. The study can as a guide for implementing carbon reduction measures in tropical island areas. Domestic research on rooftop greenhouses also focuses on technology, yield, and energy consumption, mostly for northern regions with cold winters, and less research on rooftop greenhouses applied to regions with hot summers and warm winters. But domestic and foreign studies on the potential of rooftop greenhouses to reduce emissions have not yet been combined with plant cultivation of hydroelectric carbon emissions and plant carbon sequestration.https://www.mdpi.com/2075-5309/15/2/299carbon emissions of buildinggreenhouses roofsgreen roofsphotovoltaic roofslife cycle |
| spellingShingle | Dawei Mu Wenjin Dai Yixian Zhang Yixu Shen Zhi Luo Shurui Fan Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs Buildings carbon emissions of building greenhouses roofs green roofs photovoltaic roofs life cycle |
| title | Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs |
| title_full | Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs |
| title_fullStr | Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs |
| title_full_unstemmed | Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs |
| title_short | Research on the Carbon Reduction Potential of the Life Cycle of Building Roofs Retrofit Designs |
| title_sort | research on the carbon reduction potential of the life cycle of building roofs retrofit designs |
| topic | carbon emissions of building greenhouses roofs green roofs photovoltaic roofs life cycle |
| url | https://www.mdpi.com/2075-5309/15/2/299 |
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