Stained glass is a form of decorative glass which was popular during the Gothic period and the Renaissance period (1100s–1500s). It is most often used in the construction of churches and other religions buildings, but it can also be seen in homes or public places.
The term “stained glass” is derived from the silver stain that was sometimes applied to the outside of windows. Stained glass was typically utilized to make windows, allowing light to pass through the artwork.
Stained glass windows have been documented in British monasteries since the 7th century, with the first known mention dating back to 675 AD, when Benedict Biscop commissioned French workers to produce stained glass for the monastery of St Peter’s windows.
Stained glass was made by combining potash and sand to 3000°F and adding a variety of metallic oxide powders to produce various hues. The glass was then flattened into thin sheets while it was still flexible. On a large board, the artists would have a blue print, or cartoon, of the window’s design. The artist would cut the size of each sheet of glass according to the blue print. Grozing was used to finish the pieces. Details were painted on stained glass windows with a paint made from ground glass and iron filings combined in urine or wine; this combination aided in blocking light and defining patterns. The finished glass elements were inserted into H-shaped lead cames, which were then soldered together to make panels. The frames used iron wire called an armature to make the window; it was now complete and ready to be installed in the wall.
Stained glass is not as common today as it was in the past. However, It has seen a recent resurgence, with interior designers incorporating stained glass into more modern designs to create a unique space or add character to a heritage restoration.
The beauty of stained glass doesn’t come cheap. On average, a stained glass window will cost $1200 per square metre including installation. The price for antique pieces can be priceless.
Elias Chahine is the director of Gusto Emergency Glass Replacement and has many years in the glass repair and construction industry