Tempered glass is most commonly found on which windows?

• A. Windshield
• B. Side and rear windows
• C. Roof
• D. Floor

Answer: (B)

Tempered glass is a safety glass that has been heat-treated to create compressive stress on the surface, so when it breaks it fractures into many small, blunt pieces rather than sharp shards. This makes side and rear windows safer for occupants and easier to escape from the vehicle after a collision. Windshields, on the other hand, are usually laminated glass—two layers of glass with a plastic interlayer—that helps keep the window intact and maintains visibility after impact, which is essential for protecting occupants and maintaining the structural integrity of the vehicle. Roof and floor windows aren’t the standard locations for tempered glass, and sunroofs can vary in construction. So the most common tempered-glass windows are the side and rear windows.