The St. Margaret Catholic parish church is recognized as heritage in the Burgenland municipality of Apetlon, Austria.
Planned from the beginning, coloured church windows were realised in September 2023, fulfilling the long-standing desire of the Apetlon parish. The Berlin artist Marie-Luise Dähne also accomplished the practical goal of reducing the intensity of the strong sunlight while maintaining the view of the outside natural environment with her abstract and yet narrative portrayal of the life and martyrdom of St. Margaret of Antioch.
The design was manually copied by Peters using ceramic colours onto the 6 mm tempered safety glass panes in formats varying from 1.6 by 1.3 metres to 2.6 by 1.4 metres in the renowned Paderborn workshop for glass painting. The motifs were then melted at 600 degrees Celsius.
The authorities in charge of monument protection mandated curved panes. The production of the 3D-molded insulating glass units, CurvePerformDGU from CurvePerformMono “Freeform curved” outer panes of 6 millimetres, with a flat laminated safety glass serving as an ornamental counter pane in the insulating glass units, was contracted out to the Vandaglas plant, Vandaglas Döring Berlin. Energy-efficient window modernization was also planned as part of the glass renovation. Therefore, for the edge seal, Dow 3362 and the flexible Edgetech‘ Super Spacer® TriSeal SG were utilized.
Vandaglas Döring site manager Carsten Kunert commented about the project, “The convex cavities are moulded out of the flat pane. This looks unspectacular at first glance, but the geometry of multi-axis curved panes is complex and therefore makes it difficult to predict the material behaviour during bending and after installation. Based on our many years of experience, we have once again opted for the flexible Super Spacer spacers for the Apetlon insulating glass units. They are easy to apply, support resistance to wind loads and make a significant contribution to energy efficiency, as there are no thermal bridges at the edge of the glass.”