A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand
Numerous heritage buildings are being renovated across historical cities in Southeast Asia as part of conservation efforts. Many such buildings suffer from poor indoor daylight quality, negatively affecting occupants’ visual health. This study proposes a novel framework to analyze daylight quality i...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-08-01
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| Series: | Journal of Asian Architecture and Building Engineering |
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| Online Access: | http://dx.doi.org/10.1080/13467581.2025.2546396 |
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| author | Wirut Thinnakorn Kantaphong Srimuang Raksiri Kaewtawee Sarin Pinich Farhana Mohd Razif Reyes Garcia |
| author_facet | Wirut Thinnakorn Kantaphong Srimuang Raksiri Kaewtawee Sarin Pinich Farhana Mohd Razif Reyes Garcia |
| author_sort | Wirut Thinnakorn |
| collection | DOAJ |
| description | Numerous heritage buildings are being renovated across historical cities in Southeast Asia as part of conservation efforts. Many such buildings suffer from poor indoor daylight quality, negatively affecting occupants’ visual health. This study proposes a novel framework to analyze daylight quality in heritage shophouses using window-to-wall ratios and five metrics. Three typical shophouses with different shape factors (SF) are considered case studies. The shophouses were simulated in Rhinoceros®, Grasshopper®, ClimateStudio™ V1.9, and DIALux evo® to examine different window-to-wall ratios (WWR10–100), aiming to identify an optimal value for high-quality daylight within the buildings. The results show that West-facing (0°) buildings can have suitable indoor daylight, except in cases where a building has an internal courtyard. Increasing the WWR value improves most daylight performance metrics, except the ASE metric, which requires careful control through a reduced WWR – particularly in buildings with narrow and elongated layouts. For buildings with square-shaped and rectangular layouts, even a modest number of openings (WWR10–40) can meet most metrics suggested in LEED V3 and LEED V4 standards. This study serves as a guideline for developing building control regulations in historic urban areas to promote the sustainable adaptation of traditional shophouses. |
| format | Article |
| id | doaj-art-e8f2c0c748a94c44a9f5bacfd855174d |
| institution | Kabale University |
| issn | 1347-2852 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Architecture and Building Engineering |
| spelling | doaj-art-e8f2c0c748a94c44a9f5bacfd855174d2025-08-20T04:03:21ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522025-08-010011910.1080/13467581.2025.25463962546396A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, ThailandWirut Thinnakorn0Kantaphong Srimuang1Raksiri Kaewtawee2Sarin Pinich3Farhana Mohd Razif4Reyes Garcia5Walailak UniversityWalailak UniversityWalailak UniversityChulalongkorn UniversityUniversiti Sains MalaysiaUniversity of WarwickNumerous heritage buildings are being renovated across historical cities in Southeast Asia as part of conservation efforts. Many such buildings suffer from poor indoor daylight quality, negatively affecting occupants’ visual health. This study proposes a novel framework to analyze daylight quality in heritage shophouses using window-to-wall ratios and five metrics. Three typical shophouses with different shape factors (SF) are considered case studies. The shophouses were simulated in Rhinoceros®, Grasshopper®, ClimateStudio™ V1.9, and DIALux evo® to examine different window-to-wall ratios (WWR10–100), aiming to identify an optimal value for high-quality daylight within the buildings. The results show that West-facing (0°) buildings can have suitable indoor daylight, except in cases where a building has an internal courtyard. Increasing the WWR value improves most daylight performance metrics, except the ASE metric, which requires careful control through a reduced WWR – particularly in buildings with narrow and elongated layouts. For buildings with square-shaped and rectangular layouts, even a modest number of openings (WWR10–40) can meet most metrics suggested in LEED V3 and LEED V4 standards. This study serves as a guideline for developing building control regulations in historic urban areas to promote the sustainable adaptation of traditional shophouses.http://dx.doi.org/10.1080/13467581.2025.2546396daylight indoor qualityheritage buildingswindow-to-wall ratiorenovationfaçades |
| spellingShingle | Wirut Thinnakorn Kantaphong Srimuang Raksiri Kaewtawee Sarin Pinich Farhana Mohd Razif Reyes Garcia A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand Journal of Asian Architecture and Building Engineering daylight indoor quality heritage buildings window-to-wall ratio renovation façades |
| title | A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand |
| title_full | A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand |
| title_fullStr | A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand |
| title_full_unstemmed | A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand |
| title_short | A novel approach to analyze indoor daylight quality in heritage shophouses: a case study in Nakhon Si Thammarat, Thailand |
| title_sort | novel approach to analyze indoor daylight quality in heritage shophouses a case study in nakhon si thammarat thailand |
| topic | daylight indoor quality heritage buildings window-to-wall ratio renovation façades |
| url | http://dx.doi.org/10.1080/13467581.2025.2546396 |
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