Our premium solution for residential double glazing provides a clear coating that keeps heat where it should be – inside your home.
Enjoy year-round comfort and ensure that you and your family are always warm throughout New Zealand’s changeable climate.
A lighter, brighter solution
Whether it’s a home, hotel or a hostel, LightBridge™ provides superior thermal insulation without sacrificing on natural light – keeping your space a comfortable temperature.
LightBridge™ products decrease heat transfer between inside and out, so you don’t have to rely so much on heating systems.
Lots of different make ups are available for additional privacy, security, noise and other benefits – making LightBridge™ suitable for almost anything you can dream of.
Double Glazed Unit
LightBridge™ is always contained within an insulated glass unit to protect the near-invisible Low E coating. It can also be paired with a wide range of glass options.
Low E Coating
With less tint than other Low E glass, it is among the clearest in New Zealand with an 81% light transmission providing greater natural light and clarity.
All LightBridge™ double glazed units are locally processed and assembled, offering greater opportunity for tailored design and solutions.
- Residential windows and doors
- Multi-story apartments
- Commercial windows and doors
- Minimum Size: 390mm x 190mm
- Maximum Size: 4900mm x 2600mm*
*subject to glass type and material thickness
Spacer Bar Options
There are two spacer options within the LightBridge™ range.
Two pieces of glass are separated by a metal spacer and sealed to provide a hermetically sealed air gap. It has a primary water vapour proof seal and the secondary seal is supplied standard as polysulphide. Structural silicone secondary seal is an option upon request. The airspace is provided with a desiccant to prevent condensation forming within the unit.
A thermal spacer provides low thermal conductivity. This means heat inside will take longer to transfer outside. By reducing the heat transfer at the edge of the glass a thermal spacer minimises the risk of condensation on the interior glass surface, and improves thermal comfort for all building occupants.
Glazing compounds, sealants and gaskets need to be approved by Viridian for suitability.
Frame design – the Viridian Warranty relies on frame design in accordance with AS/NZS4666. Do not expose edges to standing water and moisture as this can result in seal failure. The frames must incorporate impervious weather seals or a self draining system.
Wind load and safety determine the type and thickness of glass required – refer Australian Standard AS1288 or New Zealand Standard NZS4223.
Installation must be in accordance with AS/NZS4666.
Visual characteristics and manufacturing tolerances – LightBridge™ is manufactured to AS/NZS4666.
|U Value*||Shading Coefficient||Daylight Transmission|
|6mm Clear / 14 / 6mm Clear||2.6||0.81||78%|
|6mm Clear / 14 / 6mm LightBridge||1.2||0.66||79%|
|6.5mm Clear VLam Silence Laminate/ 14 / 6mm Lightbridge™||1.2||0.66||79%|
|LightBridge™ (4mm Clear/ 16mm Spacer / 4mm LightBridge™)||1.1||0.69||81%|
|6mm Grey / 14 / 6mm LightBridge||1.2||0.39||37%|
|6mm Clear / 14 /6mm Lightbridge (Coating on Surface 3)||1.2||0.68||81%|
Where double glazing units have been used, LightBridge™ Low-E coatings are on surface 3 and 5. Centre-of-glass U-Values were calculated by Calumen II software based on EN673 conditions. SC, VLT and Tdw-ISO values were calculated by Window 7 software based on NRFC 100-2010 conditions.
*Argon gas used in U value calculation
VIRIDIAN LIGHTBRIDGE™ – HIGH PERFORMANCE LOW E INSULATING GLASS UNITS (IGU’S)
Brand/type: Viridian LightBridge™
Outer glass type: LightBridge™ Low E
Coated surface: Low E ~
Spacer width: 12mm (recommended)
Space gas: ~
Inner glass type: Clear ~
Specify Low E coated surface as surface No. 3
Spacer widths include 6, 8, 10, 11, 12, 14 and 16mm; this is the air gap width.
Air or argon; for increased thermal performance specify Argon gas.
4, 5, 6, 8, 10mm.
Can be toughened or annealed to NZS4223.3. (4 and 5mm annealed version only in NI)
LightBridge™ Low E is a soft coat Low E that can only be used within sealed insulating glass units. The LightBridge™ coating on surface #3 allows a combination of; high light transmission (79%) with a shading co-efficient (0.58) and U value (1.2 with argon).
Our Assurance to you
Residential IGU Flowchart
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