
Preserving historic buildings requires simultaneously addressing technical, environmental, and regulatory demands while maintaining the material, cultural, and symbolic continuity of what already exists. As the understanding consolidates that the most sustainable building is the one that is already standing, and that preservation also involves construction knowledge, material traditions, and the social fabrics from which they emerged, these same buildings are increasingly confronted with more rigorous contemporary parameters. Energy efficiency, safety, carbon emission reduction, and regulatory compliance have become unavoidable references, placing architecture before a central tension: how to update what already exists without breaking the continuity that sustains its heritage value.



















