Glass foundations

The internal tensile-stress region that balances the compressive stress near the surfaces of heat-treated glass.

Annealed flat glass with a reflective metallic backing, normally protected by additional backing layers for interior mirror use.

Stress that remains within glass after manufacturing, heat treatment, fabrication, assembly, or another process even when no current external load is applied.

Glass with a surface treatment designed to increase reflection and alter visible or solar-energy transmission.

A thin-film coating deposited onto glass in a vacuum, commonly by magnetron sputtering after the glass ribbon has formed.

Glass colored by ingredients added to the glass composition so the tint extends through the thickness of the lite.

A thin coating designed to reduce long-wave radiant heat transfer while preserving selected visible-light and solar-performance characteristics.

A coating formed on hot glass through a high-temperature deposition process, often during float-glass manufacture.

Glass carrying an intentionally deposited surface layer that changes optical, thermal, reflective, decorative, or other performance.

An exterior-to-interior convention that numbers each exposed or concealed glass surface in sequence, beginning with surface 1 outdoors.