Restoring 1920s Art Deco facades presents unique technical challenges, particularly when working with original terracotta and cast stone elements. Our recent landmark designation project required innovative restoration techniques and comprehensive documentation for compliance.
Technical Challenges
Original Art Deco facades feature intricate terracotta ornamentation and cast stone details that require specialized restoration expertise. Common issues include:
- Spalling and deterioration of terracotta units
- Cracking in cast stone elements
- Failed mortar joints
- Corrosion of embedded steel supports
Restoration Techniques
Our restoration approach prioritized preservation of original materials while ensuring structural integrity. Techniques included:
- In-situ repair of terracotta using compatible mortars
- Selective replacement of severely damaged units
- Epoxy injection for cast stone crack repair
- Cathodic protection for embedded steel
Documentation Process
Landmark designation compliance required comprehensive documentation, including:
- Detailed condition assessments with photogrammetry
- Material analysis and compatibility testing
- Historical research and archival documentation
- Proposed treatment plans with preservation rationale
Case Study: 1928 Office Building
Our restoration of a 12-story Art Deco office building in downtown Los Angeles involved repair of over 2,000 terracotta units and restoration of 150 cast stone elements. The project was completed on schedule and received approval from the local landmarks commission.
Conclusion
Historic preservation of Art Deco facades requires specialized expertise, careful planning, and commitment to preserving architectural heritage. The investment in proper restoration techniques ensures these historic structures continue to contribute to urban character for generations to come.