What is a stained glass window?
Stained glass windows are comprised of a mosaic matrix of colored glass held in place by lead came and surrounded by a wooden or metal frame. Lead came consists of pure lead, extruded into a form that, in profile, resembles an I-beam. The glass sits into the groove of the I-beam channel; it is surrounded on all sides by the lead came; the glass is further bonded to the lead by special glazing putty, called cement. Glass, cement, and window frame combine to create a remarkably strong, monolithic structure, capable of lasting 100 years.
