Heat Strengthened

Oldcastle BuildingEnvelope® heat-strengthened glass is approximately twice as strong as annealed glass of similar thickness and configuration. Heat-strengthened glass generally fractures in a manner similar to annealed glass and tends to remain in the opening when broken. It is intended for general glazing where additional strength and/or resistance to mechanical and/or thermal stress are desired. Heat-strengthened glass is NOT a safety glazing product and therefore should not be used where safety glazing is required.

Heat Strengthened

Applications [+][-]

Heat Strengthened Applications

Due to its superior glass retention properties, heat-strengthened glass is the preferred heat-treated glass product for applications where additional strength is needed to meet mechanical loads (wind or snow) or thermal loads caused by certain tinted or coated glasses. Heat-Strengthened glass is widely used in laminated glass for additional strength, such as in overhead and sloped glazing. Heat-Strengthened glass cannot be used in any safety glazing applications.

Capabilities [+][-]

Heat Strengthened Capabilities

Most architectural glass products can be heat-treated. Some patterned glass and decorative glass with a deep surface pattern may not be heat-treatable. Silk-Screened and ceramic spandrel glass are always either heat-strengthened or tempered as part of their fabrication process. When spandrel glass is incorporated into insulating glass units, both lites must be heat-treated. Heat-absorbing glasses, such as standard and high performance tints, reflective glasses and some Low-E glass, may require heat treatment to reduce the probability of thermal-stress breakage, especially when used as part of an insulating glass unit.

Characteristics [+][-]

Heat Strengthened Characteristics

The color, chemical composition and light transmission characteristics of glass remain unchanged after the heat-treating process. The physical properties of glass, such as the compressive strength, hardness, specific gravity, the softening point, thermal conductivity, solar transmittance, stiffness and expansion coefficient, also remain unchanged.

Description [+][-]

Heat Strengthened Description

Glass is heat-treated by heating annealed glass to a temperature of approximately 1,150ºF (621°C), then rapidly cooling it. The glass is cooled by a carefully controlled airflow (also known as quenching), which uniformly cools all glass surfaces simultaneously. High airflow rates produce tempered glass and much lower airflow rates produce heat-strengthened glass.

Glass Colors [+][-]

Heat-Treated Glass Colors

Oldcastle BuildingEnvelope® offers a comprehensive line of Heat-Treated Glass options. The glass types listed below are included in the Heat-Treated offering. Oldcastle BuildingEnvelope® offers a variety of glass products to meet your architectural glazing design needs. Please contact Oldcastle BuildingEnvelope® for product availability and performance data as this information is subject to change without notice.

For monolithic, laminated or insulating glass unit performance data, please go to GlasSelect®, our on-line glass performance calculator.

Assistance Options:

  1. Call toll-free, 866-653-2278.
  2. Send e-mail to Technical Support.
Clear
Clear Glass Products
Clear
1/4" (6mm) Clear Float Glass
5/16" (8mm) Clear Float Glass
3/8" (10mm) Clear Float Glass
1/2" (12mm) Clear Float Glass
3/4" (19mm) Clear Float Glass
Self-Cleaning/Low Maintenance
1/4" (6mm) Pilkington Activ® on Clear Self-Cleaning #1
Low-E
1/4" (6mm) Vitro Solarban® 90 on Starphire® Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SNX 51/23 on UltraClear™ Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 78/65 on UltraClear™ Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 90 on Clear Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SNX 51/23 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 78/65 on Clear Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 60 on Clear Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 67 on Clear Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 70XL Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® Neutral 40 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 50 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® SN 54 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on Clear Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SNX 62/27 on Clear Low-E #2 or #3
1/4" (6mm) Pilkington Energy Advantage™ Low-E #2 or #3
Reflective
1/4" (6mm) Vitro Solarban® R100 on Clear Neutral Reflective Low-E #2
1/4" (6mm) Guardian SunGuard® AG 43 on Clear Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on Clear Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® Silver 20 on Clear Reflective #2
1/4" (6mm) Guardian SunGuard® SNR 43 on Clear Radiant Low-E #2
1/4" (6mm) Pilkington Clear Eclipse Advantage™ Radiant Low-E #2
1/4" (6mm) Vitro Sungate® 500 on Clear Low-E #2 or #3
1/4" (6mm) Vitro Sungate® 600 on Clear Low-E #2 or #3

 

Low Iron
Low Iron Glass Products
Low Iron
1/4" (6mm) Vitro Starphire® Low Iron Clear Float Glass
3/8" (10mm) Vitro Starphire® Low Iron Clear Float Glass
1/2" (12mm) Vitro Starphire® Low Iron Clear Float Glass
1/4" (6mm) Guardian UltraClear® Low Iron Clear Float Glass
3/8" (10mm) Guardian UltraClear® Low Iron Clear Float Glass
1/2" (12mm) Guardian UltraClear® Low Iron Clear Float Glass
1/4" (6mm) Pilkington Optiwhite™ Low Iron Clear Float Glass
3/8" (10mm) Pilkington Optiwhite™ Low Iron Clear Float Glass
1/2" (12mm) Pilkington Optiwhite™ Low Iron Clear Float Glass
Low-E
1/4" (6mm) Vitro Solarban® 60 on Starphire Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 72 on Starphire Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SN 54 on UltraClear® Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on UltraClear® Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SNX 62/27 on UltraClear® Low-E #2 or #3
Reflective
1/4" (6mm) Vitro Solarban® R100 on Starphire® Neutral Reflective Low-E #2
1/4" (6mm) Guardian SunGuard® SNR 43 on UltraClear® Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® SN 62 on UltraClear® Low-E #2 or #3

 

Gray
Gray Glass Products
Tinted
1/4" (6mm) Vitro Graylite® II High Performance Tint
1/4" (6mm) Vitro Solargray® Tint Float Glass
1/4" (6mm) Guardian CrystalGray® Tinted Float Glass
1/4" (6mm) Guardian Gray Tinted Float Glass
1/4" (6mm) Guardian MidnightGray™ High Performance Tint
1/4" (6mm) Pilkington SuperGrey™ High Performance Tint
Low-E
1/4" (6mm) Vitro Solarban® z75 Low-E #2 or #3
1/4" (6mm) Vitro Solarban® 90 on Solargray® Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Optigray® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Optigray® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Optigray® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Optigray® Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 51/23 on CrystalGray® Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 51/23 on Gray Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 62/27 on Gray Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Solargray® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Solargray® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Solargray® Low-E #2
1/4" (6mm) Vitro Solarban® z50 Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® Neutral 40 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 50 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® SN 54 on CrystalGray® Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on CrystalGray® Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on Gray Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 62/27 on CrystalGray® Low-E #2
1/4" (6mm) Pilkington Solar E™ on Clear Low-E #2
1/4" (6mm) Pilkington Solar E™ on Grey Low-E #2
Reflective
1/4" (6mm) Vitro Solarban® R100 on Optigray® Neutral Reflective Low-E #2
1/4" (6mm) Guardian SunGuard® AG 43 on Gray Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on Gray Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® SNR 43 on Gray Radiant Low-E #2
1/4" (6mm) Vitro Solarban® R100 on Solargray® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarcool® Gray Reflective #2
1/4" (6mm) Guardian SunGuard® AG 43 on CrystalGray® Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on CrystalGray® Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® SNR 43 on CrystalGray® Radiant Low-E #2
1/4" (6mm) Pilkington Grey Eclipse Advantage™ Radiant Low-E #2
1/4" (6mm) Vitro Vistacool® Solargray® Reflective #2

 

Bronze
Bronze Glass Products
Tinted
1/4" (6mm) Vitro Solarbronze®
Low-E
1/4" (6mm) Vitro Solarban® 60 on Solarbronze® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Solarbronze® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Solarbronze® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Solarbronze® Low-E #2
Reflective
1/4" (6mm) Vitro Solarban® R100 on Solarbronze® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarcool® Bronze Reflective #2
1/4" (6mm) Pilkington Bronze Eclipse Advantage™ Radiant Low-E #2

 

Green
Green Glass Products
Tinted
1/4" (6mm) Vitro Atlantica® High Performance Tint
1/4" (6mm) Vitro Solexia® Tinted Float Glass
1/4" (6mm) Pilkington EverGreen™ High Performance Tint
Low-E
1/4" (6mm) Vitro Solarban® 60 on Solexia® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Solexia® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Solexia® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Solexia® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Atlantica® Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 51/23 on Green Low-E #2
1/4" (6mm) Pilkington Solar E™ on EverGreen™ Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Atlantica® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Atlantica® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Atlantica® Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 40 on Green Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 50 on Green Low-E #2
1/4" (6mm) Guardian SunGuard® SN 54 on Green Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on Green Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 62/27 on Green Low-E #2
Reflective
1/4" (6mm) Vitro Solarban® R100 on Atlantica® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarban® R100 on Solexia® Neutral Reflective Low-E #2
1/4" (6mm) Guardian SunGuard® AG 43 on Green Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on Green Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® Silver 20 on Green Reflective #2
1/4" (6mm) Guardian SunGuard® SNR 43 on TwilightGreen™ Radiant Low-E #2
1/4" (6mm) Pilkington EverGreen™ Eclipse Advantage™ Radiant Low-E #2
1/4" (6mm) Guardian TwilightGreen™ High Performance Tint

 

Blue Green
Blue Green Glass Products
Tinted
1/4" (6mm) Vitro Azuria® High Performance Tint
1/4" (6mm) Pilkington Optifloat™ Blue-Green Tinted Float Glass
Low-E
1/4" (6mm) Vitro Solarban® 90 on Azuria® Low-E #2
1/4" (6mm) Pilkington Solar E™ Plus on Blue-Green Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Azuria® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Azuria® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Azuria® Low-E #2
Reflective
1/4" (6mm) Vitro Solarban® R100 on Azuria® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarcool® Azuria® Reflective #2
1/4" (6mm) Vitro Vistacool® Azuria® Reflective #2
1/4" (6mm) Pilkington Blue-Green Eclipse Advantage™ Radiant Low-E #2

 

Blue
Blue Glass Products
Tinted
1/4" (6mm) Guardian CrystalBlue™
1/4" (6mm) Vitro Optiblue®
1/4" (6mm) Vitro Pacifica® High Performance Tint
1/4" (6mm) Vitro Solarblue®
1/4" (6mm) Pilkington Arctic Blue™ High Performance Tint
Low-E
1/4" (6mm) Vitro Solarban® 90 on Optiblue® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Solarblue® Low-E #2
1/4" (6mm) Vitro Solarban® 90 on Pacifica® Low-E #2
1/4" (6mm) Vitro Solarban® z75 Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® SNX 51/23 on CrystalBlue™ Low-E #2
1/4" (6mm) Guardian SunGuard® SNX 62/27 on CrystalBlue™ Low-E #2
1/4" (6mm) Guardian SunGuard® SN 54 on CrystalBlue™ Low-E #2
1/4" (6mm) Guardian SunGuard® SN 68 on CrystalBlue™ Low-E #2
1/4" (6mm) Pilkington Solar E™ Plus on Arctic Blue™ Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Pacifica® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Pacifica® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Pacifica® Low-E #2
1/4" (6mm) Vitro Solarban® 60 on Solarblue® Low-E #2
1/4" (6mm) Vitro Solarban® 67 on Solarblue® Low-E #2
1/4" (6mm) Vitro Solarban® 70XL on Solarblue® Low-E #2
1/4" (6mm) Vitro Solarban® z50 Low-E #2 or #3
1/4" (6mm) Guardian SunGuard® Neutral 40 on Clear Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 50 on Clear Low-E #2
1/4" (6mm) Pilkington Solar E™ on Arctic Blue™ Low-E #2
Reflective
1/4" (6mm) Guardian SunGuard® AG 43 on CrystalBlue™ Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on CrystalBlue™ Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® SNR 43 on CrystalBlue™ Radiant Low-E #2
1/4" (6mm) Vitro Solarban® R100 on Optiblue® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarban® R100 on Pacifica® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarban® R100 on Solarblue® Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarcool® Pacifica® Reflective #2
1/4" (6mm) Vitro Solarcool® Solarblue® Reflective #2
1/4" (6mm) Vitro Vistacool® Pacifica® Reflective #2
1/4" (6mm) Pilkington Arctic Blue™ Eclipse Advantage™ Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® Royal Blue 40 on Clear Radiant Low-E #2

 

Silver
Silver Glass Products
Reflective
1/4" (6mm) Vitro Solarban® R100 on Clear Neutral Reflective Low-E #2
1/4" (6mm) Vitro Solarcool® Azuria® Reflective #1
1/4" (6mm) Vitro Solarcool® Bronze Reflective #1
1/4" (6mm) Vitro Solarcool® Gray Reflective #1
1/4" (6mm) Vitro Solarcool® Pacifica® Reflective #1
1/4" (6mm) Vitro Solarcool® Solarblue® Reflective #1
1/4" (6mm) Guardian SunGuard® AG 43 on Clear Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® AG 50 on Clear Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® Neutral 61 on Clear Radiant Low-E #2
1/4" (6mm) Guardian SunGuard® Silver 20 on Clear Reflective #2
1/4" (6mm) Guardian SunGuard® Silver 32 on Clear Reflective #2
1/4" (6mm) Guardian SunGuard® SNR 43 on Clear Radiant Low-E #2
1/4" (6mm) Pilkington Clear Eclipse Advantage™ Radiant Low-E #2
1/4" (6mm) Vitro Solarcool® Solexia® Reflective #1

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