Insulating Glazing Unit
What is TGU Glass?
The Excellent Heat Performance 1-3/4” (42mm) Triple Insulating Glass Units, also called TGU glass, which are designed for modern homes that demand maximum thermal efficiency, comfort, and noise reduction. Featuring three precision-engineered glass panes separated by two insulated cavities, this unit delivers exceptional energy savings while ensuring year-round comfort.
Ideal for energy-conscious homeowners, passive houses, and high-performance architectural projects, it offers superior durability, condensation control, and design versatility.
Working Flow-42mm Triple Insulating Unit
Features of Triple Glazing Unit Glass
Better Thermal Insulation – The extra glass layer and gas cavity reduce heat transfer, giving U-values as low as 0.6 W/m²·K or better.
Improved Energy Efficiency – Helps keep interiors warmer in winter and cooler in summer.
Enhanced Comfort – Reduces cold spots and condensation near windows.
Superior Sound Insulation – Three panes and two cavities help block more outside noise.
Design Flexibility – Can be combined with Low-E coatings, tints, or laminated glass for added performance.
Specification for 42mm Triple Insulating Unit
| Parameter | Specification |
|---|---|
| Glass Type | 1-3/4” Triple Insulating Glass Unit |
| Overall Thickness | 42mm (1-3/4”) |
| Configuration | Glass + Spacer + Glass + Spacer + Glass |
| Typical Glass Thickness | 5mm or 6mm |
| Spacer Width | 12~14mm each cavity (customizable) |
| Gas Fill | Argon (90%+) or Krypton |
| Low-E Coating | On 2nd and/or 5th surface |
| U-Value (W/m²·K) | ~0.6–1.0 (depending on gas and coating) |
| Solar Heat Gain Coefficient (SHGC) | ~0.35–0.50 |
| Visible Light Transmission (VLT) | ~50–65% |
| Sound Reduction Index (Rw) | 40–45 dB |
| Seal Type | Dual-sealed (primary butyl, secondary silicone/ polysulfide) |
Solar Performance Data Reference for Dual Pane Insulating Unit
Comparison with Double Glazing
| Feature | Double Glazing | Triple Glazing |
|---|---|---|
| Number of panes | 2 | 3 |
| Gas cavities | 1 | 2 |
| Thermal insulation | Good | Excellent |
| Weight | Lighter | Heavier (~50% more) |
| Cost | Lower | Higher |
Different Application for Triple Insulating Glass Units
Passive house projects
Cold climate residential buildings
High-performance commercial façades
Skylights and roof glazing where heat loss is a major concern
How Many Triple Insulating Glass Units Types?
- 42mm Clear Triple Insulating Glass Units
- 1-3/4” Low-E Triple Insulating Glass Units
- 1-3/4” Tinted Triple Insulating Glass Units (grey, bronze, green, blue)
- Laminated Triple Insulating Glass Units
- 1-3/4” Triple Glazing with Double Low-E Coatings
- 42mm Acoustic Triple Insulating Glass Units
- 1-3/4” Reflective Triple Insulating Glass Units
- 1-3/4” Low-Iron (Ultra-Clear) Triple Insulating Glass Units
Packing Informarion for 42mm Triple Insulating Unit
Packaging Type: Strong seaworthy plywood crates with moisture protection.
Separation: Each glass sheet separated by cork pads or EVA sheets.
Sealing: Wrapped with PE film to prevent moisture ingress.
Labeling: Each crate labeled with product specs, order number, and handling instructions.
Capacity: Typically 15–25 IGUs per crate (depends on dimensions and thickness).
Maximize energy savings in your modern home — contact us for a free consultation and quote!
FAQs for Order Triple Glazing Unit Glass
For a first-time cooperation, we are happy to provide free samples for simple products such as clear tempered glass and clear laminated glass to support our initial collaboration. However, we are unable to cover the shipping costs. We hope both sides can share some of the expenses from a partnership perspective. If this order and project move forward and we work together in the future, these costs can be fully deducted from our formal cooperation.
Yes, we are able to provide triple Low-E glass insulated glass units (IGUs) according to your specifications. Actually we work based on very good relationship with XYG, CSG, Jinjing, TG Glass, SYP.
Yes, we can supply replacement Low-E insulated glass units (IGUs) to match your existing specifications, including size, glass type, spacer, and Low-E coating. We can manufacture them to fit seamlessly into your current frames.
Yes, we do offer door-to-door service. We can arrange it according to your location, and the exact cost and lead time will be confirmed based on the destination and shipping method you prefer.
For tempered glass and standard laminated glass, we generally offer a 5-year warranty. For higher-performance glass, such as insulated glass, Low-E glass, and coated glass, we typically provide a 10-year warranty.
Please note: As glass is inherently fragile, there is always a risk of breakage during transportation. Even for tempered glass, despite our use of high-quality raw glass from XYG, CSG, and PPG, and processing with advanced tempering furnaces from NorthGlass and LandGlass, there is still an approximate 0.2% risk of spontaneous breakage. If any damage occurs, we will do our best to assist you in minimizing the loss.
Of course. Xpert BM was founded with the mission of helping all our clients solve their challenges. Our primary customers are individuals small and medium contractors, and we are always happy to listen to their ideas. Our professional team will carefully consider their needs and provide the most suitable advice and recommendations.
Our triple glazing units can achieve a U-value as low as 0.6 W/m²·K when using double Low-E coatings with argon gas fill. With krypton gas, we can reach around 0.4–0.5 W/m²·K, depending on glass thickness and spacer type.
The exact U-value will depend on your chosen glass thickness, coating type, and gas fill, so we can provide a performance calculation based on your project specifications.