Tempered glass is heat-treated so that, when it breaks, it generally fragments into many smaller pieces; laminated glass consists of glass layers bonded to an interlayer that helps hold broken fragments together. Neither choice is unbreakable, and each serves different safety and performance priorities. Tempered glass is often considered where impact and thermal stress are concerns, while laminated glass can be useful where fragment retention, sound control or a more continuous barrier is important.
The correct selection depends on location, pane size, human impact risk, fall exposure, overhead use, acoustics, solar control, frame capacity and applicable project requirements. Glass type should be coordinated with the aluminum system and installation details rather than selected from appearance alone.
Decision points
- Owner: Identify doors, low-level glazing, railings, wet areas and other locations where safety or fragment retention is especially important.
- Architect/designer: Set the safety, acoustic, solar and visual requirements, including any applicable code or project specification.
- Contractor/builder: Verify labels, orientation, edge condition, setting blocks, handling, protection and compatibility with hardware.
For glazed openings, review aluminum sliding doors and contact OTEC with the location, pane sizes and safety requirements.
