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Bent Glass
Bent glass is fabricated from flat glass, which has been heated to between 1000F (538C) and 1100F (593C), gravity or mechanically formed, and then allowed to cool to the desired shape. Advances in the technology of bending glass have enabled glass benders to offer designers and architects a wide variety of options, including large lites of glass that can be bent to compound curves or to several radii with straight legs on one or both ends. Glass can also be bent to relatively sharp angles. Bent glass is available in various types including annealed, heat-strengthened and fully tempered. Bent glass can be laminated or built into insulating glass units. Check with fabricator for limitations. Pyrolytic solar control glass can be bent, although the radius of the bend may be limited by lower bending temperatures to avoid crazing of the coating. Lites with baked-on ceramic lines or dots, as well as many patterned glasses, may also be bent.

ASTM document C 1464 Standard Specification for Bent Glass addresses the requirements for bent glass used in general building construction, display and various other non-automotive applications.

The above information is from the GANA Glazing Manual, 2004 Edition - the most frequently referenced resource in the architectural glass and glazing industry. The Glazing Manual is an excellent addition to any technical library. Go here to order a copy of the manual or CD-ROM. For further information on this and other GANA reference documents visit the PUBLICATIONS section of the GANA website.

 

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Last modified: 11/09/08