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.
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
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.
The ability to naturally cool, warm and light up a building results in far lower energy bills.
As a double glazed unit, LoE-i89 achieves an incredible a Visible Light Transmission (VLT) of 80%, among the best in its class.
- 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
Single glazed / monolithic unit
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 Transmission||Reflectance||Solar Heat Gain||U-Value|
|Regular clear single glazed|
|6mm clear float||88%||8%||0.82||5.8|
|LoE-i89® single glazed|
|6mm LoE-i89 Clear||87%||7%||0.72||3.6|
|LoE-i89® double glazed IGU|
|4mm LoE-i89 Clear |
|LoE-366 (surface 2) with LoE-i89 (surface 4)|
|4mm LoE-366 Clear|
Centre of glass calculated using LBNL Window 7.3 based on NFRC 100 environmental conditions