Architectural glass products used in commercial construction applications often incorporate single or multiple lites of glass with different colors, thicknesses, strength, coatings and other surface and edge treatments. The National Glass Association (NGA) recommends terminology and practices contained within this document for describing the construction of architectural glass products to be used in windows, doors, skylights, window walls and curtain walls.

 

The Technical Services Division of the National Glass Association (NGA) has produced this Glass Technical Paper solely for informational purposes. This Paper was developed by dedicated member volunteers and subject matter experts. The original version of this document was approved and published in 2007. This version of the document was updated and published in April 2022. All purchases will be electronically accessed or delivered