Transcription of COMPARISONS - VitroGlazings.com
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COMPARISONS for One- inch Insulating Glass Units Insulating Glass Unit Performance COMPARISONS 1- inch (25 mm) units with 1/2- inch (13 mm) airspace and two 1/4- inch (6 mm) litesGlass TypeOutdoor Lite: Indoor Lite: Coating if Any + Coating if Any(Surface) Glass (Surface) GlassVisible Light Transmittance(VLT)2 %Visible Light Reflectance2(Btu/hr ft2 F) NFRC U-Value3 Solar Heat Gain Coeffi cient (SHGC)4 Light-to-Solar Gain (LSG)5 Exterior %Interior %WinterNighttimeWinter ArgonUncoatedCLEAR Glass + Clear + ACUITY + STARPHIRE + Clear + Clear + Clear + + + Clear + Clear + Clear II + Clear 400 Low-E GlassSUNGATE 400 (2) Clear + 400 (2) STARPHIRE + + SUNGATE 400 (3) Clear + SUNGATE 400 (3) + SUNGATE 400 (3) Clear + SUNGATE 400 (3) Clear + SUNGATE 400 (3) Clear + SUNGATE 400 (3) + SUNGATE 400 (3) Clear + SUNGATE 400 (3)
Insulating Glass Unit Performance Comparisons 1-inch (25 mm) units with 1/2-inch (13 mm) airspace and two 1/4-inch (6 mm) lites Glass Type Outdoor Lite: Indoor Lite: Coating if Any + Coating if Any (Surface) Glass (Surface) Glass Visible Light Transmittance (VLT)2 % Visible Light Reflectance 2 (Btu/hr•ft2•˚F) NFRC U-Value 3 Solar Heat Gain
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