In the early 1980’s when skylights, sunrooms and solariums became popular the only glass options were single pane, double pane, or insulated glass.
Unfortunately, even though attractive, this type of glass did not allow spaces to be heated or cooled very effectively. Glass technology has made great advances since the 80’s. Spaces with skylights and even solariums today allow nearly the same efficient heating and cooling as any other space in the building.
Our SilverCoat E-366 and Solarban 70XL is the best value in glass available. It’s manufactured specially for Crystal Structures by Cardinal Glass, one of the premier glass manufacturing and coating companies in the world. Our Solarban 70XL is made by Vitro (PPG) and is considered equal to SilverCoat E-366. Based upon availability and logistics of the project we may elect to use Solarban 70XL in place of SilverCoat E-366 – both are high performance glass options.
Benefits of our high performance glass:
- Clear insulated glass gives a clear view inside and out.
- Fully tempered safety glass on each part of the glazing unit
- Increased energy performance since the air cavity is filled with argon gas
- Dual seals, one for moisture and one for structure
- Bent spacers, one joint instead of four
- 3 special silver low-e coatings on the number 2 side of the glass
- Up to 10 year warranty against fogging or separation
- SilverCoat 366 and Solarban 70XL coatings are almost clear
Energy performance data for our standard glass offerings
|SilverCoat Model:||Solar Heat Gain
|Light to Solar Gain||R-Value||U-Value||Daylight
|SilverCoat E-366||0.27||2.44||4.2||0.24||66%||General conditioned space|
|Solarban 70XL||0.27||2.37||3.7||0.27||64%||General conditioned space|
|Optional Low-E Coatings|
|SilverCoat E-340||0.18||2.17||4.0||0.25||39%||Southern climates|
|SilverCoat E-272||0.41||1.75||4.0||0.25||72%||Northern climates / greenhouses|
|Solarban 60XL||0.38||1.84||3.7||0.27||70%||Northern climates, more light & heat|
|Clear Dual Insulated||0.78||1.05||2.0||0.58||82%||Production greenhouses, requires more heat and cooling|
Many other low-e coatings are available from Pilkington, Guardian, Old Castle and Viracon.
On commercial projects, federal codes require all roof glass to be laminated. Our standard laminated glass can be combined with any of the glass above. Our standard inboard laminate glass is 1/4″ heat strengthened with an 0.60 PVB inner layer. Most of our competitors use a 1/4″ annealed glass with only 0.30 inner layer.