| Property | Annealed | Tempered | Heat-Strengthened | Laminated | Double/Triple Glazed | Low-E | Smart Glass |
|---|---|---|---|---|---|---|---|
| Strength (MPa) | 40-50 | 100-200 | 60-100 | 40-150 | System dependent | Base glass strength | Base glass strength |
| Safety Rating | Low | High | Medium | Very High | Medium-High | Base dependent | Base dependent |
| Break Pattern | Large shards | Small cubes | Medium pieces | Stays intact | Depends on glass type | Base dependent | Base dependent |
| Cost (Relative) | $ | $$ | $$ | $$$ | $$$ | $$$ | $$$$ |
| UV Protection | Poor | Poor | Poor | Excellent | Good | Excellent | Excellent |
| Thermal Insulation | Poor | Poor | Medium | Good | Excellent | Excellent | Excellent |
| Sound Insulation | Poor | Poor | Poor | Good | Excellent | Poor | Variable |
| Post-Processing | Yes | No | No | Limited | No | No | No |
| Typical Uses | – Basic windows |
- Interior
- Non-safety | – Doors
- Facades
- Safety areas | – Spandrel
- Curtain walls | – Security
- Skylights
- Acoustic | – Residential
- Commercial
- Cold climates | – Energy efficient
- Solar control | – High-end
- Dynamic control |
| Installation Complexity | Low | Medium | Medium | Medium | High | Medium | High |
| Maintenance | Low | Low | Low | Medium | Medium | Low | High |
| Lifespan (years) | 20-30 | 20-30 | 20-30 | 20-25 | 20-25 | 20-25 | 15-20 |
| Energy Efficiency | Poor | Poor | Medium | Good | Excellent | Excellent | Excellent |
| Light Transmission (%) | 90 | 85-90 | 85-90 | 75-85 | 70-80 | 70-80 | 40-80 (variable) |
Additional Considerations:
- Environmental Factors:
- Temperature resistance
- Wind load capacity
- Humidity tolerance
- UV exposure
- Building Codes:
- Safety requirements
- Energy codes
- Fire ratings
- Impact resistance
- Cost Factors:
- Material cost
- Installation cost
- Maintenance cost
- Energy savings
- Performance Metrics:
- U-value
- SHGC (Solar Heat Gain Coefficient)
- VLT (Visible Light Transmission)
- STC (Sound Transmission Class)
Note: Actual values may vary by manufacturer and specific product specifications. Local building codes and climate conditions should guide final selection.
Our Partners
- FR2 Infrastructure –Â Constructability advise and project and planning controls
- Staging Diagrams – Staging diagrams for possession planning
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