Chromatic reintegration: Color Matching Challenges in Polychrome wooden Ceilings

Abstract

This paper presents a comprehensive study on the materials, manufacturing techniques, and conservation strategies used in the polychrome wooden ceilings and walls of the Church of Santa María de Cuevas in Chihuahua, Mexico, whose origin dates back to colonial times. It focuses on the chromatic reintegration process and the significant findings discovered during the restoration project. The renowned Italian technique of sottotono was employed to establish color reintegration criteria, allowing for a clear distinction between restored and original paint in the ceilings situated 12 meters above the floor. The varying intensities of the original paint posed challenges, particularly in beam ceilings where achieving smooth variations was not feasible. Floral decorative motifs exhibited a consistent red-orange hue, while yellow displayed variations, especially in areas affected by water damage. The blue color, prominent throughout, exhibited notable variations in hue, with two different saturations observed. The restoration process revealed unique insights into the design techniques used and variations in motifs and spacing. These findings deepen understanding of materials, techniques, and conservation strategies employed in Spanish colonial churches in the region, providing valuable knowledge for future preservation efforts.