4. Use appropriate preservation techniques: When preserving a historical building, it is important to use appropriate techniques and materials that are consistent with the building's historical integrity. This may include using traditional construction methods, materials, and architectural styles to ensure that the building's historical significance is maintained. 5. Work with skilled professionals: Preserving a historical building requires the expertise of skilled professionals, including architects, engineers, and preservation specialists. It is important to work with professionals who have experience in historical preservation and understand the unique challenges involved in preserving older buildings.