Laminated glass is two or more lites (pieces) of glass permanently bonded together with one or more plastic interlayers (polyvinyl-butyral or PVB) using heat and pressure.
The glass and interlayers can be a variety of colors and thicknesses designed to meet building code standards and requirements as necessary.
Laminated glass can be broken, but the fragments tend to adhere to the plastic layer and remain largely intact, reducing the risk of injury.
Laminated glass is considered “safety glass” and meets the requirements of the various code organizations that set standards for safety.
Heat-strengthened and tempered glass can be incorporated into laminated glass units to further strengthen the impact resistance.
Hurricane resistance, the need for bomb blast protection, sound attenuation and ballistic or forced-entry security concerns are all primary uses for laminated glass.
For complete industry-accepted information about laminated glass, please review local standards such as NBR 7199 – glass in architectural application ; NBR 14698 – tempered glass; NBR 14687 – laminated glass; NBR 16015 – insulated glass and Glass Association of North America’s Laminated Glazing Manual as reference.