BIG GLASS CONFIGURATIONS AVAILABLE UP TO 130” x 236”.
Double laminated insulating glass units have both a laminated inboard and laminated outboard with a space in between. This configuration is often selected when improved OITC acoustic performance is desired such as in schools. In addition, double laminated insulating units can meet protective glazing requirements.
![](https://germansystemwindows.com/wp-content/uploads/2018/08/gls3.jpg)
Glass characteristics
- Exterior: 2 plies of 1/4″ glass laminated together with a .060″ interlayer
- Interior: 2 plies of 1/4″ glass laminated together with a .060″ interlayer
- Coating on #2 surface or #4 surface
- 1/2″ airspace
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
There are eight surfaces in a double laminated insulating glass unit and two primary options for Low-E or Reflective coating placement within the unit. Coatings placed on the #2 surface decrease solar heat gain; however, superior solar performance, including an improved u-value, is achieved by placing the coating on the #4 surface, touching the air space. For additional information regarding Saint Gobain coatings, see the coatings page within components.
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
Technical details VE-48 #2
- 1-5/8″ GSE1-48 Double Laminated Insulating
- 1/4″ clear with GSE-48 #2
- .060 clear PVB
- 1/4″ clear
- 1/2″ airspace
- 1/4″ clear
- .060″ clear PVB
- 1/4″ clear
Glass Specs
- VLT 43%
- Winter u-value 0.44
- Summer u-value 0.46
- SHGC 0.35
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
![](https://germansystemwindows.com/wp-content/uploads/2018/08/glass_model.png)
Technical details VE-48 #4
- 1-5/8″ GSE1-48 Double Laminated Insulating
- 1/4″ clear
- .060 clear PVB
- 1/4″ clear with GSE-48 #4
- 1/2″ airspace
- 1/4″ clear
- .060″ clear PVB
- 1/4″ clear
Glass Specs
- VLT 43%
- Winter u-value 0.29
- Summer u-value 0.27
- SHGC 0.33