Wired Glass

Wired glass is a product in which a wire mesh has been inserted during production. It has an impact resistance similar to that of normal glass, but in case of breakage, the mesh retains the pieces of glass. This product is traditionally accepted as low-cost fire glass.

The most controversial wired glass is that installed in the windows and doors of schools and recreation centers. While wired glass can provide good resistance to the passage of flames and smoke, it is significantly weaker than ordinary tempered or laminated glass and can be more dangerous upon impact. Impact resistance is a very important factor in above-mentioned environments such as schools, kindergartens, recreation centers... For several years wired glass was the only type of glass that could pass the fire and impact resistance tests. With the development of new types of glass that outperform wired glass for both fire and impact safety, these debates have become even more persistent. Experts in favor of using other more sophisticated types of glass have questioned the purpose of using wired glass and accused it of being a factor behind numerous accidents. Some of them also even suggested a change in norms and regulations. On the other hand experts and producers in favor of wired glass blame the codes or improper installations for accidents. In the selected links you will find interesting debates and articles between these two sides, wired glass properties, regulators,etc.
 

Production
A steel wire mesh is sandwiched between two separate ribbons of semi-molten glass, and then passed through a pair of metal rollers which squeeze the "sandwich of glass and wire"