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PPG Glass Technology

PPG has extensive knowledge of glass and its proper usage through decades of laboratory experiments and field installations. Whether you are designing an office building, remodeling a new home, or just replacing a broken window PPG has an answer.

PPG Architectural Glass Comparisons

PPG Sungate® Low-E glasses enhance energy efficiency and maintain the original clear or tinted glass substrate color.

All Sungate® Low-E insulating glass units improve thermal performance and reduce solar heat gain. Because the coatings are neutral, Sungate® glasses are the ideal solution for energy-efficient commercial structures where the original appearance of the glass is desired.  PPG manufactures two Sungate® coated Low-E glasses for commercial construction.

Sungate® 100 Low-E Glass
Sungate® 100 glass combines a clear glass appearance with excellent thermal properties.  The U-Value of a Sungate® 100 insulating glass unit is improved 35% compared with a standard clear glass unit. Visible light transmittance of the Sungate® 100 glass unit is 92% as high as a clear uncoated glass unit.

Sungate® 500 Low-E Glass
Sungate® 500 glass provides the clarity and color neutrality of clear uncoated glass with some of the best performance characteristics available.  Using Sungate® 500 glass in an insulating unit improves U-Value 27% over a standard clear glass unit. Additionally, the Sungate® 500 glass unit transmits almost 94% as much visible light as a standard clear unit.

Sungate® Performance -
One Inch Insulating Glass Unit Comparison Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 SUNGATE® 100 Glass

 Sungate 100 (2) Clear

73

0.31

0.59

1.43

 Sungate 100 (3) Clear

73

0.31

0.66

1.30

 Sungate 100 (3) Solexia

63

0.31

0.47

1.58

 Sungate 100 (3) Atlantica

55

0.31

0.38

1.72

 Sungate 100 (3) Azuria

55

0.31

0.37

1.72

 Sungate 100 (3) Bronze

44

0.31

0.45

1.13

 Sungate 100 (3) Gray

36

0.31

0.40

1.06

 Sungate 100 (3) Optigray 23

19

0.31

0.24

0.95

 Sungate 100 (3) Graylite

11

0.31

0.26

0.50

 SOLARCOOL + SUNGATE® 100 Glass

 Solarcool (2) Azuria + 1/2" Air + Sungate 100 (3) I.G. Unit

21

0.31

0.20

1.24

 Solarcool (2) Bronze + 1/2" Air + Sungate 100 (3) I.G. Unit

17

0.31

0.27

0.74

 Solarcool (2) Gray + 1/2" Air + Sungate 100 (3) I.G. Unit

14

0.31

0.24

0.67

 SUNGATE® 500 Glass

 Sungate 500 (2) Clear

74

0.35

0.70

1.23

 Sungate 500 (3) Clear

74

0.35

0.75

1.14

 Sungate 500 (3) Solexia

64

0.35

0.51

1.45

 Sungate 500 (3) Atlantica

56

0.35

0.40

1.65

 Sungate 500 (3) Azuria

56

0.35

0.39

1.70

 Sungate 500 (3) Bronze

44

0.35

0.52

0.98

 Sungate 500 (3) Gray

37

0.35

0.45

0.95

 Sungate 500 (3) Optigray 23

19

0.35

0.27

0.83

 Sungate 500 (3) Graylite

11

0.35

0.32

0.41

 SOLARCOOL + SUNGATE® 500 Glass

 Solarcool (2) Azuria + 1/2" Air + Sungate 500 (3) I.G. Unit

22

0.35

0.22

1.16

 Solarcool (2) Bronze + 1/2" Air + Sungate 500 (3) I.G. Unit

18

0.35

0.33

0.64

 Solarcool (2) Gray + 1/2" Air + Sungate 500 (3) I.G. Unit

14

0.35

0.29

0.56


Solarban® 60 was engineered to control solar heat gain, which is essential to minimizing cooling costs. In a standard one inch insulating glass unit, Solarban® 60 has the following features:
  • Exterior appearance similar to clear, uncoated glass
  • Blocks approximately 60% of the total solar energy
  • Excellent insulation value (U-Value = 0.29)

Note: This product meets the new energy efficiency guidelines set forth by the Federal Energy Management Program (FEMP) for spectrally selective glazing products.

LSG Ratio: Using the Light to Solar Gain Ratio (LSG) allows performance comparisons to be made between glazing products, and highlights the standards set by PPG glasses. The LSG ratio is the ratio of visible light transmittance to solar heat gain coefficient. The higher the LSG ratio, the better the glazing is at reducing unwanted solar heat gain and maximizing desirable natural light transmittance. Excellent LSG ratios can be attained using spectrally selective tinted glasses and/or Solarban® Solar Control Low-E glasses.

Solarban® 60 Performance -
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 SOLARBAN 60

 Solarban 60 (2) Clear

69

0.29

0.44

1.86

 Solarban 60 (3) Solexia(formerly Solex®)

60

0.29

0.41

1.67

 Solarban 60 (3) Atlantica(formerly Solargreen®)

52

0.29

0.35

1.73

 Solarban 60 (3) Azuria(formerly Azurlite®)

52

0.29

0.35

1.73

 Solarban 60 (3) Bronze

41

0.29

0.36

1.32

 Solarban 60 (3) Gray

35

0.29

0.32

1.25

 Solarban 60 (3) Optigray 23

18

0.29

0.21

1.00

 Solarban 60 (3) Graylite

11

0.29

0.20

0.65

 SOLARCOOL + Solarban 60 (Formerly Sungate 1000 Low-E Glass)

 Solarcool (2) Azuria (formerly Azurlite®) + 1/2" Air + Solarban 60 (3) I.G. Unit

20

0.29

0.18

1.25

 Solarcool (2) Bronze + 1/2" Air + Solarban 60 (3) I.G. Unit

16

0.29

0.20

0.90

 Solarcool (2) Gray + 1/2" Air + Solarban 60 (3) I.G. Unit

14

0.29

0.19

0.88

Starphire® glass is an ultra-clear glass designed for a wide variety of commercial applications. It maintains its remarkable clarity in any thickness.

Its incredible clarity and sparkling edge make it perfect for architectural use. Starphire® glass is the ideal solution for emphasizing sunny atriums, entranceways, reception areas, lobbies or entire building facades. In retail storefronts and displays, it allows the displayed products’ true colors to shine through.

The high fidelity color transmission of Starphire® glass makes it possible to incorporate whites, pastels and soft earthtones in your spandrel designs while allowing the true colors to shine through. When white or light-colored ceramic frit designs are desired, Starphire® glass is the solution.

And, when laminated for security glazing applications, the high transmittance of PPG Starphire® glass provides an unmatched combination of security and visibility. Regardless of the thickness of the desired laminate configuration, Starphire® glass avoids the greening inherent in ordinary clear glass. From zoo enclosures to jewelry storefronts, Starphire® provides color fidelity with security.  Starphire® glass is produced in thicknesses 1/8" through 1/2".

Typical Starphire® Applications
While the architectural uses for PPG Starphire® glass are limitless, a few applications where its unsurpassed clarity has already found favor are:

• Vision glass of unique brightness and character
• Spandrels of ‘true’ color fidelity
• Dramatic entranceways/doors
• Brighter, more exciting atriums
• Security glazing laminates of outstanding color fidelity
• Sparkling glass partitions and handrails
• Retail storefront/display cases of unequaled clarity and character
• Sculptures
• Decorated and screen-printed vision glass

 

 

 


Solarban® 60(2) Starphire® combines the utmost in transparency/visible light transmittance with outstanding energy performance.  True color clarity and solar control in one brilliant, affordable package.  NEW - PPG's most popular high-performance solar control low-e coating now available on the clearest float glass in the world.

Visible Light Transmission U-Value Winter U-Value Summer SHGC Shading Coefficient Outdoor Visible Light Reflectance
73% 0.29 0.28 0.41 0.47 12%

PPG Azuria™ is a spectrally selective tinted glass like no other architectural glass product available today, from its aquamarine appearance to its unsurpassed performance. Azuria™ glass provides buildings with a desirable low shading coefficient and high visible light transmittance, a unique combination unmatched by any other commercial glass product. PPG Azuria™ is the best blend of solar control and visible light transmittance available in an aquamarine glass product.

Azuria™ is the perfect glass for ocean-front structures and poolside settings, with its azure blue appearance complementing the natural beauty of the outdoors and its high light transmittance bringing that beauty indoors.

Behind that beauty lies incredible performance. The Shading Coefficient of Azuria™ glass is extraordinarily low, especially for an uncoated tinted product: 0.44 in a one inch insulating unit. Yet, visible light transmittance is high, especially for a tinted product: 60% for a one inch I.G. unit. This combination yields a Light to Solar Gain Ratio (LSG) of 1.58 which no other commercially available architectural glass can match.

Note: This product meets the new energy efficiency guidelines set forth by the Federal Energy Management Program (FEMP) for spectrally selective glazing products.

Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Azuria 1/4"/6mm, Monolithic

67

1.09

0.58

1.34

 Azuria + 1/2" Air + Clear, I.G. Unit

60

0.48

0.44

1.58

 SUNGATE Low-E

 Azuria + 1/2" Air + Sungate 100 (3) I.G. Unit

55

0.31

0.37

1.72

 Azuria + 1/2" Air + Sungate 500 (3) I.G. Unit

56

0.35

0.39

1.70

 SOLARBAN Solar Control Low-E

 Azuria + 1/2" Air + Solarban 60 (3) I.G. Unit

53

0.29

0.35

1.77

Solarcool® glasses provide maximum flexibility due to the durability of the metallic oxide coating, which is deposited onto the float glass during production.

Thus, Solarcool® glass can be glazed with the reflective coating positioned on either the first (#1) or second (#2) surface. The glass has improved performance, higher exterior visible reflectivity and a slight bronze hue when installed with the coating on the first surface. When installed with the coating on the second surface, Solarcool® glass has lower exterior visible reflectivity while maintaining the substrate glass color.

Solarcool® coated glass can be used monolithically or combined with clear glass in an insulating glass unit for greater thermal performance. When joined with PPG’s Solarban® 60 solar control, Low-E glasses, even more significant performance results. Click here to see insulated glass unit comparison data.

Solarcool® Caribia™ Glass
Caribia™ glass, when combined with Solarcool® coating on the #2 surface, creates a unique warm green aesthetic that blends nicely with the surrounding environment. Along with the other ocean-inspired reflective products, Solarcool® Azuria™ and Solarcool® Solexia™ glasses, Solarcool®,Caribia™ provides both excellent light transmittance and a low solar heat gain coefficient for exceptional solar control performance.

The warm green hue of Solarcool® Caribia™ glass becomes muted when the reflective coating is used on the #1 surface. The result is a more reflective, metallic appearance.

Solarcool® Solexia™ Glass
With the soft reflectivity of Solarcool® coated glass and light green color of Solarcool® tinted glass, Solarcool® Solexia™ glass can create standout aesthetics for any commercial project.

When glazed with the reflective coating facing inboard (#2), Solarcool® (2) Solexia™ glass has a natural-green reflectivity that enhances the beauty of its surroundings, while harmonizing with other natural building materials.

When glazed with reflective coating on the outboard (#1) surface, Solarcool® (1) Solexia™ glass has higher visible light reflectivity that adapts to changing light conditions and the surrounding andscape.

Solarcool® Azuria™ Glass
Solarcool® coated Azuria™ glass takes the best properties of two superb PPG glass products and combines them into one. With the coating on the #2 surface, the softly reflective aquamarine color of the glass is visually stunning. Because Solarcool® Azuria™ glass transmits more visible light than most competitive products, building interiors will be brighter and will require less artificial lighting.

When the Solarcool® coated surface is in the #1 position, outdoor reflectivity is increased and the solar heat gain is decreased, resulting in reduced air-conditioning loads. Outdoor reflected color is more neutral.

Solarcool® Bronze Glass
Solarcool® bronze glass provides a silver-bronze aesthetic and reduced solar heat gain when glazed with the reflective coating on the outboard (#1) surface and a dark-bronze aesthetic when glazed with the reflective coating on the inboard (#2) surface. With the reflective coating on the #2 surface, Solarcool® bronze glass has subtle reflectivity.

Solarcool® Gray Glass
Solarcool® gray glass provides a silvery aesthetic when glazed with the reflective coating on the outboard (#1) surface and a dark gray aesthetic when glazed with the reflective coating on the inboard (#2) surface. Solarcool® (2) gray glass is the solution when a true gray color is desired in a low-reflectivity glass.

Solarcool® Graylite® Glass
Solarcool® Graylite® glass provides a rich silver aesthetic when glazed with the reflective coating on the outboard (#1) surface and a dramatic, almost-black aesthetic when glazed with the reflective coating on the inboard (#2) surface. The very low visible light transmittance of Solarcool® Graylite® glass (5% for one inch insulating unit) makes it ideal for privacy glazing applications or high sunlight climates where glare control is required.

Solarcool® Performance -
Monolithic 1/4" (6mm) Glass and
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 SOLARCOOL Glass; 1/4" (6mm) Monolithic

 Solarcool (1) Azuria 1/4"/6mm, Monolithic

26

1.09

0.34

0.90

 Solarcool (1) Caribia 1/4"/6mm, Monolithic

26

1.09

0.35

0.87

 Solarcool (1) Bronze 1/4"/6mm, Monolithic

21

1.09

0.46

0.54

 Solarcool (1) Gray 1/4"/6mm, Monolithic

17

1.09

0.42

0.47

 Solarcool (1) Solexia 1/4"/6mm, Monolithic

9

1.09

0.42

0.83

 Solarcool (1) Graylite 1/4"/6mm, Monolithic

5

1.09

0.36

0.16

 Solarcool (2) Azuria 1/4"/6mm, Monolithic

26

1.09

0.41

0.72

 Solarcool (2) Caribia 1/4"/6mm, Monolithic

26

1.09

0.42

0.72

 Solarcool (2) Bronze 1/4"/6mm, Monolithic

21

1.09

0.52

0.47

 Solarcool (2) Gray 1/4"/6mm, Monolithic

17

1.09

0.49

0.40

 Solarcool (2) Solexia 1/4"/6mm, Monolithic

9

1.09

0.48

0.71

 Solarcool (2) Graylite 1/4"/6mm, Monolithic

5

1.09

0.44

0.13

 SOLARCOOL Glass; One Inch Insulating Units

 Solarcool (1) Azuria + 1/2" Air + Clear, I.G. Unit

24

0.48

0.24

1.15

 Solarcool (1) Caribia + 1/2" Air + Clear, I.G. Unit

23

0.48

0.24

1.10

 Solarcool (1) Bronze + 1/2" Air + Clear, I.G. Unit

19

0.48

0.35

0.63

 Solarcool (1) Gray + 1/2" Air + Clear, I.G. Unit

15

0.48

0.31

0.56

 Solarcool (1) Solexia + 1/2" Air + Clear, I.G. Unit

7

0.48

0.31

1.00

 Solarcool (1) Graylite + 1/2" Air + Clear, I.G. Unit

5

0.48

0.25

0.23

 Solarcool (2) Azuria + 1/2" Air + Clear, I.G. Unit

24

0.48

0.27

1.00

 Solarcool (2) Caribia + 1/2" Air + Clear, I.G. Unit

24

0.48

0.28

1.00

 Solarcool (2) Bronze + 1/2" Air + Clear, I.G. Unit

19

0.48

0.38

0.58

 Solarcool (2) Gray + 1/2" Air + Clear, I.G. Unit

16

0.48

0.35

0.53

 Solarcool (2) Solexia + 1/2" Air + Clear, I.G. Unit

7

0.48

0.35

0.90

 Solarcool (2) Graylite + 1/2" Air + Clear, I.G. Unit

5

0.48

0.29

0.20


Caribia™ Glass is the newest member of PPG Industries’ spectrally-selective architectural glass family.

Caribia™ Glass’ aqua-green tint is as strikingly beautiful as the sea from which it draws its name. The pleasing combination of tropical green with ocean blue will be a welcome addition to the design palette of architects. Though inspired by the sea, this unique tint will be at home with a range of different building materials to create structures of lasting beauty. Caribia™ Glass was developed by PPG in response to an extensive color/tint survey of design architects. The top glass color choice of these designers led PPG to create this highly unique aqua-green spectrally selective glass.

Spectrally selective glass* is designed to combine excellent visible light transmittance with reduced infrared transmittance thereby reducing solar heat loads.

Caribia™ Glass (1" I.G. unit, 6mm)

  • Outstanding Visible Light Transmittance (VLT): 60%

  • Solar Heat Gain Coefficient (SHGC) of 0.38

  • An excellent Light to Solar Gain ratio (LSG) of 1.58

Caribia™ and Solarban® 60 Solar Control Low-E Glasses
Combining these two PPG high-performance products in a 1" I.G. unit will give architects and builders the opportunity to achieve exceptional solar heat control while maintaining desirable high visible light transmittance.

  • Solar Heat Gain Coefficient (SHGC) with Solarban® 60 on third surface: 0.30

  • Visible Light Transmittance (VLT) with Solarban® 60 on third surface is an outstanding 52%

  • Light to Solar Gain ratio (LSG) is a desirably high 1.73

To ensure ample supply of this exciting new architectural glass, PPG has dedicated production capacity to this product. Architects and builders can be confident of meeting project deadlines when Caribia Glass is specified.

 Product

Ultra-violet
%
Visible
%
Visible Light
%
Total Solar Energy
%
Winter Night-time Summer Day-time Shading Coeffi-cient Solar Heat Gain Coeffi-cient Light to Solar Gain (LSG)

 Monolithic and I.G. Unit

 Caribia Monolithic

24 67 7 5 1.09 1.12 0.58 0.50 1.34

 Caribia + Clear, I.G. Unit

19 60 11 7 0.48 0.57 0.44 0.38 1.58

 Solarban® Solar Control Low-E Glass

 Caribia + Solarban 60 (3)

6 52 9 7 0.29 0.31 0.35 0.30 1.73

 SUNGATE Low-E Glass

 Caribia + Sungate 100 (3)

14 55 9 7 0.31 0.34 0.37 0.32 1.72

 Caribia + Sungate 500 (3)

17 56 12 7 0.35 0.40 0.39 0.33 1.70

Atlantica™ Glass is an emerald-green tinted glass that combines desirable high visible light transmittance with low shading coefficient, providing builders and designers with an attractive solution to meeting new glazing energy conservation design criteria.

In one inch insulating units, Atlantica™ glass provides 60% visible light transmittance and a Shading Coefficient of 0.46, resulting in a Light to Solar Gain Ratio (LSG) of 1.54. Its sparkling green color is especially striking against light-colored facades.

Note: This product meets the new energy efficiency guidelines set forth by the Federal Energy Management Program (FEMP) for spectrally selective glazing products.

Atlantica™ Performance -
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Atlantica 1/4"/6mm, Monolithic

67

1.09

0.60

1.31

 Atlantica + 1/2" Air + Clear, I.G. Unit

60

0.48

0.46

1.54

 SUNGATE Low-E

 Atlantica + 1/2" Air + Sungate 100 (3) I.G. Unit

55

0.31

0.38

1.72

 Atlantica + 1/2" Air + Sungate 500 (3) I.G. Unit

56

0.35

0.40

1.65

 SOLARBANE Solar Control Low-E

 Atlantica + 1/2" Air + Solarban 60 (3) I.G. Unit

52

0.29

0.35

1.73

 

Solexia™ Glass is a light green tinted glass that has provided aesthetic and performance solutions for builders and architects around the world for decades.

The light green color of Solexia™ glass subdues interior brightness while still providing the highest visible light transmittance (69% for a one inch insulating unit) of any tinted glass available. Combined with a Shading Coefficient of 0.56, the resultant Light to Solar Gain Ratio (LSG) is 1.41.

Note: This product meets the new energy efficiency guidelines set forth by the Federal Energy Management Program (FEMP) for spectrally selective glazing products.

Solexia™ Performance -
One Inch Insulating Glass Unit Comparison Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Solexia 1/4"/6mm, Monolithic

77

1.09

0.70

1.28

 Solexia + 1/2" Air + Clear, I.G. Unit

69

0.48

0.56

1.41

 SUNGATE Low-E

 Solexia + 1/2" Air + Sungate 100 (3) I.G. Unit

63

0.31

0.47

1.58

 Solexia + 1/2" Air + Sungate 500 (3) I.G. Unit

64

0.35

0.51

1.45

 SOLARBAN Solar Control Low-E

 Solexia + 1/2" Air + Solarban 60 (3) I.G. Unit

60

0.29

0.41

1.67

Solarcool® glasses provide maximum flexibility due to the durability of the metallic oxide coating, which is deposited onto the float glass during production.

Thus, Solarcool® glass can be glazed with the reflective coating positioned on either the first (#1) or second (#2) surface. The glass has improved performance, higher exterior visible reflectivity and a slight bronze hue when installed with the coating on the first surface. When installed with the coating on the second surface, Solarcool® glass has lower exterior visible reflectivity while maintaining the substrate glass color.

Solarcool® coated glass can be used monolithically or combined with clear glass in an insulating glass unit for greater thermal performance. When joined with PPG’s Solarban® 60 solar control, Low-E glasses, even more significant performance results. Click here to see insulated glass unit comparison data.

Solarcool® Caribia™ Glass
Caribia™ glass, when combined with Solarcool® coating on the #2 surface, creates a unique warm green aesthetic that blends nicely with the surrounding environment. Along with the other ocean-inspired reflective products, Solarcool® Azuria™ and Solarcool® Solexia™ glasses, Solarcool®,Caribia™ provides both excellent light transmittance and a low solar heat gain coefficient for exceptional solar control performance.

The warm green hue of Solarcool® Caribia™ glass becomes muted when the reflective coating is used on the #1 surface. The result is a more reflective, metallic appearance.

Solarcool® Solexia™ Glass
With the soft reflectivity of Solarcool® coated glass and light green color of Solarcool® tinted glass, Solarcool® Solexia™ glass can create standout aesthetics for any commercial project.

When glazed with the reflective coating facing inboard (#2), Solarcool® (2) Solexia™ glass has a natural-green reflectivity that enhances the beauty of its surroundings, while harmonizing with other natural building materials.

When glazed with reflective coating on the outboard (#1) surface, Solarcool® (1) Solexia™ glass has higher visible light reflectivity that adapts to changing light conditions and the surrounding and scape.

Solarcool® Azuria™ Glass
Solarcool® coated Azuria™ glass takes the best properties of two superb PPG glass products and combines them into one. With the coating on the #2 surface, the softly reflective aquamarine color of the glass is visually stunning. Because Solarcool® Azuria™ glass transmits more visible light than most competitive products, building interiors will be brighter and will require less artificial lighting.

When the Solarcool® coated surface is in the #1 position, outdoor reflectivity is increased and the solar heat gain is decreased, resulting in reduced air-conditioning loads. Outdoor reflected color is more neutral.

Solarcool® Bronze Glass
Solarcool® bronze glass provides a silver-bronze aesthetic and reduced solar heat gain when glazed with the reflective coating on the outboard (#1) surface and a dark-bronze aesthetic when glazed with the reflective coating on the inboard (#2) surface. With the reflective coating on the #2 surface, Solarcool® bronze glass has subtle reflectivity.

Solarcool® Gray Glass
Solarcool® gray glass provides a silvery aesthetic when glazed with the reflective coating on the outboard (#1) surface and a dark gray aesthetic when glazed with the reflective coating on the inboard (#2) surface. Solarcool® (2) gray glass is the solution when a true gray color is desired in a low-reflectivity glass.

Solarcool® Graylite® Glass
Solarcool® Graylite® glass provides a rich silver aesthetic when glazed with the reflective coating on the outboard (#1) surface and a dramatic, almost-black aesthetic when glazed with the reflective coating on the inboard (#2) surface. The very low visible light transmittance of Solarcool® Graylite® glass (5% for one inch insulating unit) makes it ideal for privacy glazing applications or high sunlight climates where glare control is required.

Solarcool® Performance -
Monolithic 1/4" (6mm) Glass and
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 SOLARCOOL Glass; 1/4" (6mm) Monolithic

 Solarcool (1) Azuria 1/4"/6mm, Monolithic

26

1.09

0.34

0.90

 Solarcool (1) Caribia 1/4"/6mm, Monolithic

26

1.09

0.35

0.87

 Solarcool (1) Bronze 1/4"/6mm, Monolithic

21

1.09

0.46

0.54

 Solarcool (1) Gray 1/4"/6mm, Monolithic

17

1.09

0.42

0.47

 Solarcool (1) Solexia 1/4"/6mm, Monolithic

9

1.09

0.42

0.83

 Solarcool (1) Graylite 1/4"/6mm, Monolithic

5

1.09

0.36

0.16

 Solarcool (2) Azuria 1/4"/6mm, Monolithic

26

1.09

0.41

0.72

 Solarcool (2) Caribia 1/4"/6mm, Monolithic

26

1.09

0.42

0.72

 Solarcool (2) Bronze 1/4"/6mm, Monolithic

21

1.09

0.52

0.47

 Solarcool (2) Gray 1/4"/6mm, Monolithic

17

1.09

0.49

0.40

 Solarcool (2) Solexia 1/4"/6mm, Monolithic

9

1.09

0.48

0.71

 Solarcool (2) Graylite 1/4"/6mm, Monolithic

5

1.09

0.44

0.13

 SOLARCOOL Glass; One Inch Insulating Units

 Solarcool (1) Azuria + 1/2" Air + Clear, I.G. Unit

24

0.48

0.24

1.15

 Solarcool (1) Caribia + 1/2" Air + Clear, I.G. Unit

23

0.48

0.24

1.10

 Solarcool (1) Bronze + 1/2" Air + Clear, I.G. Unit

19

0.48

0.35

0.63

 Solarcool (1) Gray + 1/2" Air + Clear, I.G. Unit

15

0.48

0.31

0.56

 Solarcool (1) Solexia + 1/2" Air + Clear, I.G. Unit

7

0.48

0.31

1.00

 Solarcool (1) Graylite + 1/2" Air + Clear, I.G. Unit

5

0.48

0.25

0.23

 Solarcool (2) Azuria + 1/2" Air + Clear, I.G. Unit

24

0.48

0.27

1.00

 Solarcool (2) Caribia + 1/2" Air + Clear, I.G. Unit

24

0.48

0.28

1.00

 Solarcool (2) Bronze + 1/2" Air + Clear, I.G. Unit

19

0.48

0.38

0.58

 Solarcool (2) Gray + 1/2" Air + Clear, I.G. Unit

16

0.48

0.35

0.53

 Solarcool (2) Solexia + 1/2" Air + Clear, I.G. Unit

7

0.48

0.35

0.90

 Solarcool (2) Graylite + 1/2" Air + Clear, I.G. Unit

5

0.48

0.29

0.20

Solargray® Glass
For nearly 40 years, Solargray® glass has been selected for commercial structures because of its cool light-gray appearance and ability to control solar heat gain and glare. Solargray® glass in a one inch insulating unit provides a visible light transmittance of 40%. Its light gray color makes Solargray® glass an attractive choice, combined with almost any other exterior cladding material.

Solarbronze® Glass
The warmth of its bronze tint has made Solarbronze® float glass a popular glass solution since 1959 for commercial buildings. Solarbronze® glass reduces solar heat gain and glare while providing a visible light transmittance of 48% in a one inch insulating unit. Solarbronze® glass imparts a subtle richness from the exterior and adds a warm glow to interior decors without noticeably influencing true color.

Solargray® & Solarbronze® Performance -
One Inch Insulating Glass Unit Comparison Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Solargray 1/4"/6mm, Monolithic

44

1.09

0.66

0.77

 Solarbronze 1/4"/6mm, Monolithic

53

1.09

0.72

0.85

 Solargray + 1/2" Air + Clear, I.G. Unit

40

0.48

0.52

0.89

 Solarbronze + 1/2" Air + Clear, I.G. Unit

48

0.48

0.58

0.96

 SUNGATE Low-E

 Solargray + 1/2" Air + Sungate 100 (3) I.G. Unit

36

0.31

0.40

1.06

 Solarbronze + 1/2" Air + Sungate 100 (3) I.G. Unit

44

0.31

0.45

1.13

 Solargray + 1/2" Air + Sungate 500 (3) I.G. Unit

37

0.35

0.45

0.95

 Solarbronze + 1/2" Air + Sungate 500 (3) I.G. Unit

44

0.35

0.52

0.98

 SOLARBAN Solar Control Low-E

 Solargray + 1/2" Air + Solarban 60 (3) I.G. Unit

35

0.29

0.32

1.25

 Solarbronze + 1/2" Air + Solarban 60 (3) I.G. Unit

41

0.29

0.36

1.32

Optigray® 23 Glass maintains desirable light transmittance – 21% in a one inch insulating unit – while blocking 67% of the total solar energy, for outstanding heat load reduction. The shading coefficient is one of the lowest of any architectural tinted glass product: 0.33 for a one inch I.G. unit.  Optigray® 23 glass helps reduce the air conditioning load in a commercial structure, which means the interior environment can be controlled effectively with smaller, less costly HVAC systems.  Optigray® 23 glass provides another topnotch solution to energy management needs in a new gray color option.

Optigray® 23 Performance -
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Optigray 23 1/4"/6mm, Monolithic

23

1.09

0.48

0.56

 Optigray 23 + 1/2" Air + Clear, I.G. Unit

21

0.48

0.33

0.75

 SUNGATE Low-E

 Optigray 23 + 1/2" Air + Sungate 100 (3) I.G. Unit

19

0.31

0.24

0.95

 Optigray 23 + 1/2" Air + Sungate 500 (3) I.G. Unit

19

0.35

0.27

0.83

 SOLARBAN Solar Control Low-E

 Optigray 23 + 1/2" Air + Solarban 60 (3) I.G. Unit

18

0.29

0.21

1.00

Graylite® Glass combines superior heat load reduction and solar control with a distinctive color contrast. Its shading coefficient is among the lowest of any uncoated glass: 0.38 for a one inch insulating unit. Daylight transmittance is 12%, making it ideal for glare control and privacy glazing.

Graylite® Performance -
One Inch Insulating Glass Unit Comparisons Using 1/4" (6mm) Glass

 

 Product

Visible Light Transmittance %

Winter Nighttime U-value

Shading Coefficient

Light to Solar Gain Ratio (LSG)

 Uncoated

 Graylite 1/4"/6mm, Monolithic

14

1.09

0.53

0.30

 Graylite + 1/2" Air + Clear, I.G. Unit

12

0.48

0.38

0.36

 SUNGATE Low-E

 Graylite + 1/2" Air + Sungate 100 (3) I.G. Unit

11

0.31

0.26

0.50

 Graylite + 1/2" Air + Sungate 500 (3) I.G. Unit

11

0.35

0.32

0.41

 SOLARBAN Solar Control Low-E

 Graylite + 1/2" Air + Solarban 55 (3) I.G. Unit

7

0.34

0.29

0.28

 Graylite + 1/2" Air + Solarban 60 (3) I.G. Unit

11

0.29

0.20

0.65

 

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