page_title: Architectural glass
section_title: Rolled plate (figured) glass
hierarchical_section_title: Architectural glass / Rolled plate (figured) glass
caption_attribution_description: Architecture, Domestic glass, moulded glass.
context_page_description: Architectural glass is glass that is used as a building material. It is most typically used as transparent glazing material in the building envelope, including windows in the external walls. Glass is also used for internal partitions and as an architectural feature. When used in buildings, glass is often of a safety type, which include reinforced, toughened and laminated glasses.
context_section_description: The elaborate patterns found on figured (or 'Cathedral') rolled-plate glass are produced in a similar fashion to the rolled plate glass process except that the plate is cast between two rollers, one of which carries a pattern. On occasion, both rollers can carry a pattern. The pattern is impressed upon the sheet by a printing roller which is brought down upon the glass as it leaves the main rolls while still soft. This glass shows a pattern in high relief. The glass is then annealed in a lehr.
  The glass used for this purpose is typically whiter in colour than the clear glasses used for other applications.
  Only some of the figured glasses may be toughened, dependent on the depth of the embossed pattern.  Single rolled figured glass, where the pattern is only imprinted into one surface, may be laminated to produce a safety glass.  The much less common 'double rolled figured glass', where the pattern is embossed into both surfaces, can not be made into a safety glass but will already be thicker than average figured plate to accommodate both patterned faces.  The finished thickness being dependent on the imprinted design.
caption: Figure rolled glass
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