Which glass classification is commonly used in modern interiors for safety while maintaining strength, often found in tall buildings?

• A. Laminated
• B. Annealed
• C. Tempered
• D. Heat-strengthened

Answer: (C)

Tempered glass is heat-treated to greatly boost its strength, making it several times tougher than ordinary annealed glass. That extra strength is crucial for large interior panels in tall buildings, where there’s more potential for impact, wind loads, and thermal changes. A key safety feature of tempered glass is how it breaks: when it does fail, it shatters into many small, dull fragments rather than large, sharp shards. That gentler fracture behavior reduces the risk of serious injury, which is why tempered glass is so favored for interior safety applications in high-rise environments—think large partitions, railings, and curtain-wall elements.

Laminated glass is also chosen for safety because the interlayer holds shards in place, but it doesn’t automatically deliver the same level of overall strength and impact resistance as tempered glass for very large panels typical in tall buildings. Tempered glass’s combination of high strength and safer breakage profile is the reason it’s commonly used in modern interiors of tall structures.