## 5 Conclusions  
This paper combined on-site case studies and CFD numerical simulation methods to analyze the relationship between renovation strategies for ancestral hall buildings in Guangzhou and roof wind pressure distribution. The goal was to elucidate the impact of different renovation strategies on the buildings' wind resistance performance and propose recommendations for their renovation and adaptive reuse. Based on the surveying, mapping, and investigation of the representative Guangzhou ancestral hall, Lujiang Academy, a 3D model of the ancestral hall was constructed using SketchUp. This model was then input into the CFD simulation software Fluent for domain setup, mesh generation, calculation parameter setting, and solution computation. Through CFD simulations, two renovation approaches within the ancestral hall's courtyard were analyzed: installing enclosing glass curtain walls or installing enclosing glass canopies at the top. Additionally, the roof wind pressure distribution in its original, unaltered state was examined. The CFD numerical simulation analysis data indicate significant variations in internal pressure within the open hall of the ancestral hall at different wind angles, primarilyexhibiting negative pressure overall. Under the combined effects of internal and external pressures, this setup is prone to causing damage to roof eaves and ridges. However, when the ancestral hall courtyard is enclosed with glass curtain walls, the roof wind load variation on the originally open main hall roof is most pronounced. This retrofit method effectively reduces the upward suction effect on the roof, thus enhancing wind resistance. Conversely, enclosing the ancestral hall courtyard with a glass canopy results in increased adverse negative pressure areas on the eaves and corridor roofs, potentially leading to roof damage under certain wind conditions. This study's recommendations emphasize the importance of carefully assessing and analyzing the impact of various renovation measures on the wind resistance performance of historical buildings susceptible to seasonal typhoon disasters. Enhancing wind resistance should be a key criterion in the scientific evaluation of renovation projects for historical buildings. The CFD numerical simulation method used in this research is globally applicable for assessing historical buildings before renovation and adaptive reuse, aiding in achieving wind protection and preventative conservation goals. This analysis provides guidance for the conservation and utilization of Guangzhou's ancestral hall buildings and similar historical structures with courtyard layouts. For highly protected ancestral hall heritage buildings, it is advisable to use glass curtain walls to enclose courtyards. This approach not only enhances the building's wind resistance but also requires careful consideration of ventilation openings in the glass curtain walls and evacuation routes indoors to mitigate fire spread risks. For ancestral hall heritage buildings with lower protection levels, enclosing courtyards with glass canopies is recommended. However, special attention should be given to repairing and reinforcing eaves and corridor roofs in these cases. Implementing wind resistance enhancement measures is crucial to ensure the overall wind resistance capability of the building. This study systematically evaluated renovation strategies for historical buildings, revealing in detail the specific impacts of different retrofit measures on the wind resistance performance of building roofs. Using Guangzhou's ancestral hall buildings as an example, it provides clear technical support and guidance for their preservation and utilization. These methods and findings not only have significant implications for the renovation of ancestral hall heritage buildings but also offer practical scientific methods and technical strategies for the conservation and renovation of similar historical structures.