Exploring Daylight Optimization Policies in the Conservation and Restoration of Historical Buildings in Belgium

Daylight is crucial for providing visual comfort, supporting well-being, and creating an energy-efficient environment. However, its integration into historical building conservation remains a vital yet underexplored area, requiring a delicate balance between improving occupant comfort and preserving the historical significance of these buildings.
This research investigates how daylight use is addressed in conservation policies and regulations within Belgium, with a focus on the Flanders region. The study employs a mixed-method approach, combining interviews with professionals in architecture, conservation, and built heritage with a comprehensive review of existing national, regional, and local regulations. These methods aim to evaluate the adequacy of current policies and explore opportunities for improvement.
Key questions addressed include: Which regulations and guidelines govern daylight considerations in restoration efforts? What are the most frequently altered building elements during restoration, and how does daylight integration factor into these changes? Additionally, the study probes the balance between preserving historical authenticity and adapting buildings for contemporary use, assessing whether local policies adequately support this equilibrium.
Findings reveal that while daylight optimization is increasingly recognized as essential for improving occupant comfort, energy efficiency, and the functionality of re-functioned historical buildings, its integration into conservation policies requires greater emphasis. The research highlights the need for interdisciplinary collaboration, such as architects and heritage conservationists working with environmental scientists to design innovative daylighting systems, alongside the development of more comprehensive daylight guidelines aligned with the unique requirements of historical buildings.
By exploring potential improvements to existing policies, this study aims to contribute to a more holistic approach to the restoration of historical buildings, ensuring that they remain both culturally significant and sustainably functional in modern contexts.