You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

InteriorInterior
LightBridge1.1 Low E Glass
Description

LightBridge is a high performance, thermally insulating glass also known as low-emissivity or low-E glass. It has a transparent metallic coating on one side of the inner pane of a double glazed unit. This coating reflects the heat generated inside the house back into the room to help insulate the home by keeping as much warmth inside as possible. Due to the soft Low-E coating, LightBridge offers superior insulation without hazing, unlike other hard coat options.

The advanced Low-E coating technology of LightBridge effectively reflects long-wave radiated heat back into a room, thereby minimizing heat loss through windows and doors while maximizing solar heat gain and natural light transmission. This results in a lighter, brighter, warmer and more energy efficient home.

 

 

 

Key Features
  • Premium clear Low-E double glazing that maximises natural light and warmth inside your space.
  • Superior thermal insulation that helps reduce heat loss and improve comfort year-round.
  • Energy-efficient performance that decreases heat transfer, reducing reliance on heating systems.
  • Always formed as an insulated glass unit (IGU) to protect the Low-E coating and allow pairing with many glass options. 
  • Low-E coating with high light transmission (around 79–82 %), offering clearer views than many other options.
  • Maximises solar heat gain and natural light transmission
  • An excellent U-value of 1.1 W/m2K
Scope of Use
  • Suitable for residential windows and doors, including houses and apartments.
  • Can be used in multi-story apartments. 
  • Appropriate for commercial windows and doors. 
  • Applicable in facades, sliding doors, overhead glazing and curtain wall systems. 
Limitations on Use
  • Available only in specific glass thicknesses (4, 5, 6, 8, and 10 mm)
  • Size limits: max. 4500x2700mm
  • Soft Low-E coating constraint: The soft Low-E coating must be sealed within an insulated glass unit (IGU) and cannot be used as single glazing, limiting where it can be applied. 
Other Performance Attributes
  • High light transmission 79% gives a high degree of neutrality in transmission and low reflection
  • An excellent U-value of 1.1 W/m²K

Visible Light: ( 4mm Clear // 14mm Argon // 4mm LightBridge 1.1 )

  • Transmittance: 79%
  • Outdoor Reflectance: 15%
  • Indoor Reflectance: 14%

Heat Gain:

  • SHGC: 56%
  • Shading Coefficient: 65%

Fading / Tdw ISO: 0.65 (blocks 35% of fading / UV energy)

Documents
BPIR: Insulated Glass Units (IGU)

2025

Care & Maintenance - Glass
Product Warranty
Product Warranty - Terms & Conditions
High Performance Low-E Triple Glazing

2024

Viridian Glass DGU Low E Brochure

Viridian Glass is New Zealand’s leading glass supplier and processor. It delivers high-performance custom glass solutions for residential and commercial projects nationwide.

Product Enquiries

News from Viridian Glass

H1 Window Changes and Glass Types Available in New Zealand
Energy-Efficient Glazing with Low-E Glass
Protect Wood in Interiors from UVA Rays with Laminated Glass
Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.