The Hawthorne Glazing Options
A. Dual insulated, both lites Clear, DuraLite® Spacer-Lowest Insulating Value
B. Dual insulated Cardinal 270 LoE²-2 layers of LoE Coating (side 2) with argon fill, DuraLite® Spacer -Twice the Insulating Value of Clear
C. Dual Insulated Cardinal 366 LoE³-3 layers of LoE Coating (side 2) with argon fill, with Neat® glass, DuraLite® Spacer
D. Triple Cardinal 270 LoE²-4 layers of LoE Coating (sides 2 & 5) with argon fill, XL Edge® Spacer
E. Triple Cardinal 366 LoE³-6 layers of LoE Coating (sides 2 & 5) with argon fill, with Neat® glass, XL Edge® Spacer
The data shows that the overall U-factor and in turn heat loss are significantly reduced with Cardinal LoE² and LoE³ products over clear IG units.
|Clear/Clear||LoE²-270/Clear||LoE³-366/Clear||Triple-Pane LoE²-272/Clear/LoE²-272||Triple-Pane LoE³-366/Clear/LoE³-366|
|Center of Glass U-value (Btu/hr/ft²/°F)||0.48||0.25||0.24||0.20||0.19|
This table shows how Cardinal LoE coatings and argon filling improve center of glass U-value.
Above figures are tested center of glass U-values used for comparison between options.
Complete window U-values will vary and include other factors such as air infiltration and frame construction
*Above options can be made with obscure, tempered or tinted glass.