Solar control​

LoE-i89 produces a Solar Heat Gain Coefficient (SHGC) of 0.72 when single glazed and 0.67 when double glazed in an IGU. Best of all, combining it with LoE³-366® in an IGU achieves an SHGC of 0.27.

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Thermal insulation

LoE-i89 makes the most of the winter sun and reflects escaping heat back into the room during the colder months. LoE-i89 combined with LoE³-366® in an IGU produces the lowest possible U-Value of 1.1


Easy-clean coating

LoE-i89 comes standard with Neat, a titanium dioxide layer which harnesses the sun’s rays to loosen dirt so the rain can wash it away with minimal streaks.

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Energy saving

The ability to naturally cool, warm and light up a building results in far lower energy bills.

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High visibility

As a double glazed unit, LoE-i89 achieves an incredible a Visible Light Transmission (VLT) of 80%, among the best in its class.


Glass Options​

  • Available on Clear or Grey glass

Monolithic glazing options​

  • Single glazed on surface 2

IGU glazing options​

  • Double glazed on surface 2
  • Performs best with LoE-366 on surface 2 and LoE-i89 on surface 4

Double glazed / Insulated Glass Unit

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Single glazed / monolithic unit

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The clarity of LoE-i89 in clear along with its superior insulation make it the perfect window choice for homes. To lower project costs, some homers may choose single-glazed windows for some of their windows receiving less sun as LoE-i89 as available both single or double glazed. 

  • Buildings seeking natural light and superior clarity
  • Southern facing windows
  • Predominantly colder climates
  • Premium and budget projects as product can be single or double glazed


A few example glass make-ups shown below. Please contact Glassworks if you require data for a specific make-up that is not represented here.

Light TransmissionReflectanceSolar Heat GainU-Value
Regular clear single glazed
6mm clear float88%8%0.825.8
LoE-i89® single glazed
6mm LoE-i89 Clear87%7%0.723.6
LoE-i89® double glazed IGU
4mm LoE-i89 Clear
12mm Argon
4mm clear
LoE-366 (surface 2) with LoE-i89 (surface 4)
4mm LoE-366 Clear
12mm Argon
4mm LoE-i89

Centre of glass calculated using LBNL Window 7.3 based on NFRC 100 environmental conditions

Get in touch

We are located at

8a Kitchen Road
Dandenong South VIC 3175

Call us on

+ 61 3 8788 5888

or email us

[email protected]