Triple Glazing Units
Triple Glazing Units
Three-pane sealed insulating glass units delivering U-values from 0.7 W/m²K — Passive House standard and premium residential specification.
Triple Glazing Units from Trent Glass consist of three glass panes separated by two argon-filled cavities, delivering thermal performance approximately 40% better than standard double glazing. This is the specification for Passive House (Passivhaus) certified buildings and premium residential projects targeting exceptional energy efficiency.
Assembled with warm-edge spacers and soft-coat Low-E on two surfaces (typically #3 and #5), triple-glazed units achieve U-values down to 0.6 W/m²K with matched acoustic and safety configurations available on request.
Key Features
- Passivhaus Compliant — U-values from 0.6–0.8 W/m²K
- Superior Acoustic — Rw up to 45 dB with mixed pane thicknesses
- Reduced Condensation Risk — Warm inner surface temperatures
- Two Low-E Coatings — On surfaces #3 and #5 for optimal thermal balance
- Argon-Filled Cavities — Both cavities gas-filled per EN 1279-3
- Comfort Improvement — Eliminates cold-radiation from window surface
Ideal Applications
- Passivhaus certified residential
- Ultra-low-energy commercial buildings
- North-facing elevations
- Premium residential (thermal comfort priority)
- Buildings in cold-climate regions
- Retrofit projects with heat pump systems
Technical Specifications
| Configuration | 4mm / 12mm argon / 4mm Low-E / 12mm argon / 4mm |
| Overall Thickness | 36 mm typical (range 32–44 mm) |
| U-Value | 0.6–0.8 W/m²K |
| G-Value | 0.40–0.55 typical |
| Weight | ~30 kg/m² |
| Gas Fill | Argon ≥90% in both cavities |
| Certification | BS EN 1279 + BS EN 1096, CE / UKCA marked |
