Enhancing the Sustainability of Outdoor Floodlighting for Cultural Heritage Buildings

Improperly lit architectural heritage sites contribute to intrusive light, impacting the environment. To combat this, a methodology using specialized luminaires with silhouette-based aperture was implemented during the renovation of Slovenian churches. By precisely directing light and minimizing spillage, this approach significantly reduced intrusive light. Real-life example of the Church of St. Thomas exemplifies its success. Such sustainable strategies ensure the preservation of cultural heritage while minimizing environmental impact.