Historical Restoration
of Stained Glass
NSGCG Comprehensive Historical Restoration Specifications For Stained Glass Windows
Releading vs. True Historical Restoration
At NSGCG, we differentiate between simple releading and true historical restoration. While releading replaces the lead matrix, a full restoration involves careful research, documentation, and conservation of every structural and aesthetic element.
International Conservation Standards
We follow international conservation standards, guided by Corpus Vitrearum and ICOMOS. Stained glass, as cultural heritage, demands thorough research before any restoration begins.
Research, Documentation, and Conservation Planning
We start with meticulous documentation:
- Historical research: artist, studio, design.
- Materials and previous interventions.
- Lead matrix and structural condition.
- Painted glass surfaces.
- Environmental context.
From this, we create a tailored conservation plan:
- Condition reports and structural assessments.
- Professional photographic documentation.
- Window diagrams and panel mapping.
- Conservation specifications for restoration studios.
Ethical Restoration Principles
We uphold ethical principles:
- Minimal intervention.
- Preservation of original materials.
- Reversibility.
- Full documentation.
Collaboration and Expertise
We collaborate with architects and engineers, ensuring historical accuracy. Ready to protect your
stained glass heritage? Contact us today!