The monochromic use of purple and brown are shaded using hydrofluoric acid on sheets of blown, flashed glass. The horizon emits with a gold or silver stain on a white background. The glass is leaded, laminated and mounted in the traditional way.
The halo, the crosses, the constellation are represented by beads positioned in front of the glass and held in place by round pins fixed to metal rods. A cornucopia of vegetation and flora is painted in grisaille or silver stain.

The reinforced laminated glass (type STADIP 33/2) is panelled, mounted with spacers and held in place by ties on the outside. The installation will nonetheless be sympathetic to its site, echoing traditional historic features, blending and toning with exterior stone-work.

verre, la construction de maquettes à échelle réelle. Sur de grands panneaux de bois, des bandes de scotch noir patiemment positionnées pré-figurèrent l’emplacement des plombs et des barlotières dont les lignes donneront leur forme aux futurs vitraux. C’est aussi à cette extension du champ d’application technique que le verrier dût apporter ses soins, faisant preuve de sa maîtrise aussi bien pour les esquisses préparatoires que pour l’exécution finale.

LE MATÉRIAU /
For light to issue from the glass itself and not come directly from the sun, the glass used at Conques is not transparent, but translucent. The diffused quality of light transmission isolates the space within the basilica, cutting it off from the outside world, giving rise to inner reflection. Externally, they blend with the stone whose chromatic uniformity is not disrupted by the mottled glass.

Specially created in a laboratory using granulation technique, differing levels of crystalisation throughout the glass create nuances of diffused light. Each sheet of glass is approximately 8 millimeters thick.