Garden Court Stone Conservation

Originally designed as an open-air carriageway, the Garden Court was enclosed during the building’s 1930s conversion into a museum under architect John Russell Pope’s direction. The enclosure features a distinctive glass and iron barrel skylight that preserves natural illumination while creating a controlled interior environment. The stone surfaces display rich neoclassical ornamentation including Greek Key patterns, egg and dart molding, delicate rosettes, and acanthus leaf motifs. These decorative elements are complemented by symbolic imagery representing the institution’s artistic mission.

EverGreene was initially engaged during the overall renovation and enhancement project to treat localized water staining and discoloration. EverGreene consulted with Frick curators to choose treatment methods that would clean the stone while maintaining the patina of age. After extensive treatment testing, the scope of work expanded to treating discoloration on approximately 3,400 square feet of stone, including 36 columns and 4 piers. EverGreene then performed thorough dry cleaning to eliminate soiling, salts, and mineral deposits from the stone surfaces. This process involved carefully brushing away contaminants followed by precision vacuuming to ensure complete removal of all accumulations.

Following this preliminary treatment, the team addressed water staining and discoloration through controlled steam cleaning techniques. For particularly resistant stains, specialized poultice applications were employed. Throughout the construction period, EverGreene conducted regular stone inspections to monitor staining conditions and address any emerging issues promptly.