When it comes to superior climate control, noise reduction and strength,
two panels of glass are better than one
Two Panels of Glass are Better than One
When it comes to superior climate control, noise reduction and strength, two panels of glass are better than one. Duo Plus™ Insulated Glass Units (IGUs) or double glazed units, consist of two panes of glass bonded together by a spacer and separated by a hermetically sealed Argon gas filled space.
Duo Plus™ units feature a warm edge Super Spacer made of an extruded, thermoset polymer structural silicone foam which delivers exceptional performance through lower conductivity than aluminium spacers units.
Duo Plus™ can provide solutions for:
Energy & Climate
> Energy rated glass or laminated panels with Solar Control interlayers
Noise
> Improved noise reduction using Acousta™ laminated panels
Safety
> Laminated or toughened Grade ‘A’ Safety glass
Strength
> Two panels for greater strength
Durability
> Dual primary and secondary seals for durability
Glazing Type
- Insulated Glass
- Insulated Glass with laminated glass
Performance 
| Duo Plus IGU | U-value | SHGC | VLT% |
| Single Glass comparison 4mm clear | 5.9 | 0.84 | 89 |
| 4mm SOL-R Clear 73 / 12mm Argon / 4mm Clear | 1.7 | 0.65 | 74 |
| 6mm SOL-R Clear 70 / 12mm Argon / 6mm Clear | 1.7 | 0.61 | 72 |
| 4mm Sunergy® Neutral / 12mm Argon / 4mm Clear | 1.9 | 0.50 | 60 |
| 6mm Sunergy® Neutral / 12mm Argon / 6mm Clear | 1.8 | 0.50 | 61 |
| 6mm Sunergy® Grey / 12mm Argon / 6mm Clear | 1.8 | 0.32 | 30 |