SunGuard® SuperNeutral®

SNR 43

Photo Credit: Justin Maconochie

High on your list for low heat gain

If your next commercial project is in a sunny, hot climate like Texas, Mexico or South America, or if you are looking for a reflective appearance with higher light transmission, SunGuard® SNR 43 should be high on your list. This heat-treated glass offers an outstanding light-to-solar gain ratio and excellent solar control, helping your project qualify for LEED® credits. Its light silver-blue appearance is slightly reflective, giving commercial projects a sophisticated appearance as well as an excellent vision-to-spandrel match.

High selectivity

Outstanding light-to-solar gain (LSG) ratio of 1.88

Available on 6 float glass options

Clear, UltraClear® low-iron, Grey, CrystalGray®, Green and TwilightGreen®

Can be laminated

Available on laminated and acoustic laminated glass for more security and comfort

Must be heat-treated

Through nationwide network of Guardian Select™ fabricators

Product Information

Applications

  • Facades
  • Windows
  • Doors
  • Curtain Walls
  • Roofs
  • Skylights

Manufacturing Options

  • Tempered
  • Laminated
  • Heat Soaked
  • Heat Strengthened
  • Annealed

Visual Appearance

Use the glass visualizer to get an introductory understanding of how glass will appear in use. Use the Glass Analytics tools to explore even more options for color and performance.

Visual Appearance

Use the glass visualizer to get an introductory understanding of how glass will appear in use. Use the Glass Analytics tools to explore even more options for color and performance.

* Please see Color Disclaimer at the bottom of the page for additional information.

Performance Data

  • TRANSMITTANCE

    1. Visible Light 45%
    2. Ultraviolet 24%
    3. Solar Energy 21%
    4. Light to Solar Gain (LSG) 1.96
  • Reflectance

    1. Visible Light Outside 28%
    2. Visible Light Inside 14%
    3. Solar Energy Outside 54%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 56
    2. Solar Heat Gain Coefficient (SHGC) 0.23
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on UltraClear
    3. Inboard lite Guardian UltraClear
    4. Calculation Standard NFRC-2010
  • TRANSMITTANCE

    1. Visible Light 43%
    2. Ultraviolet 17%
    3. Solar Energy 19%
    4. Light to Solar Gain (LSG) 1.89
  • Reflectance

    1. Visible Light Outside 28%
    2. Visible Light Inside 14%
    3. Solar Energy Outside 43%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 56
    2. Solar Heat Gain Coefficient (SHGC) 0.23
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on Clear
    3. Inboard lite Guardian Float Clear
    4. Calculation Standard NFRC-2010
  • TRANSMITTANCE

    1. Visible Light 28%
    2. Ultraviolet 11%
    3. Solar Energy 13%
    4. Light to Solar Gain (LSG) 1.5
  • Reflectance

    1. Visible Light Outside 14%
    2. Visible Light Inside 13%
    3. Solar Energy Outside 26%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 46
    2. Solar Heat Gain Coefficient (SHGC) 0.19
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on CrystalBlue
    3. Inboard lite Guardian Float Clear
    4. Calculation Standard NFRC-2010
  • TRANSMITTANCE

    1. Visible Light 31%
    2. Ultraviolet 9%
    3. Solar Energy 13%
    4. Light to Solar Gain (LSG) 1.59
  • Reflectance

    1. Visible Light Outside 16%
    2. Visible Light Inside 14%
    3. Solar Energy Outside 21%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 47
    2. Solar Heat Gain Coefficient (SHGC) 0.19
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on CrystalGray
    3. Inboard lite Guardian Float Clear
    4. Calculation Standard NFRC-2010
  • TRANSMITTANCE

    1. Visible Light 22%
    2. Ultraviolet 8%
    3. Solar Energy 10%
    4. Light to Solar Gain (LSG) 1.31
  • Reflectance

    1. Visible Light Outside 10%
    2. Visible Light Inside 13%
    3. Solar Energy Outside 19%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 41
    2. Solar Heat Gain Coefficient (SHGC) 0.17
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on Gray
    3. Inboard lite Guardian Float Clear
    4. Calculation Standard NFRC-2010
  • TRANSMITTANCE

    1. Visible Light 36%
    2. Ultraviolet 8%
    3. Solar Energy 14%
    4. Light to Solar Gain (LSG) 1.78
  • Reflectance

    1. Visible Light Outside 21%
    2. Visible Light Inside 14%
    3. Solar Energy Outside 14%
  • U-VALUE

    1. Winter Nighttime - Argon(90%) 0.24
    2. Winter Nighttime - Air 0.29
    3. Summer Daytime - Air 0.27
  • Heat Gain

    1. Relative Heat Gain (RHG) 50
    2. Solar Heat Gain Coefficient (SHGC) 0.2
  • Composition

    1. IG 6 mm/12.7 mm/6 mm - Coating on surface #2
    2. Outboard lite SunGuard SNR 43 on Green
    3. Inboard lite Guardian Float Clear
    4. Calculation Standard NFRC-2010

Displayed colors are intended to represent actual color. Color is a function of light and reflectivity and cannot be accurately portrayed online. Actual glass samples should be used to determine color. Please order a sample and discuss color with your Guardian Architectural Design Manager to ensure you are pleased with your SunGuard selection before ordering glass for your project.

The thermal stress guideline is only a rough guide to the thermal safety of a glazing. Other factors such as large glass areas, shapes and patterns, thick glass, glass damaged during shipping, handling or installation, orientation of the building, exterior shading, overhangs/fins that reduce wind speed, and areas with high daily temperature fluctuations can all increase the probability of thermal breakage. The results shown are not for any specific glazing installation and do not constitute a warranty against glass breakage.