Koristepintana

Koristepintana is a Finnish architectural term referring to a decorative surface treatment applied to ceilings and, less often, to upper wall sections. It describes surfaces finished with painting, stucco relief, gilding, or other ornamental techniques intended to emphasize form, light, and space in interiors. In Finnish architectural literature it is used when documenting historic interiors, as well as in conservation plans and restoration projects.

Techniques and materials: Traditional koristepintana included lime-based plaster or stucco, with molded or deeply carved motifs, often gilded with gold leaf. Painted decorations used lime wash, oil-based pigments, or later synthetic paints. Trompe-l’oeil and faux finishes simulated architectural features like arches, panels, or marble veining. In modern practice, conservators may stabilize deteriorating plaster, clean, and retouch paint using reversible materials in line with conservation ethics.

Historical development: Decorative ceiling treatments have been used across Europe since the Renaissance to enhance interiors. In Finland, koristepintana-like ornamentation appears in manor houses, churches, and public buildings from the Baroque to the late 19th century, reflecting broader stylistic trends such as neoclassicism and historicism. Regional workshop traditions contributed to distinctive motifs and plasterwork techniques.

Preservation and study: Today koristepintana is studied within architectural conservation, interior archaeology, and art history. Documentation often records the extent of ornamentation, original methods, and color schemes to guide faithful restoration. Modern interventions aim to respect the original material and appearance while ensuring structural safety.