Annealing Aspect Ratio Bow (and Warp) Breather (Tube) Units Butt Glazing Capillary Tube Units (also see Breather Tubes) Compatibility Condensation Cut Sizes Deflection (Framing Member) Deflection (Center of Glass) Distortion Double Glazing Double Strength Edging Emissivity Exterior Glazed Fenestration Flat Glass Float Glass Fully Tempered Glass Gas-Filled Units Gaskets Glass Glass Quality (Flat) Glazing Glazing Select Quality Heat-Absorbing Glass Heat-Resisting Glass Heat-Strengthened Glass Heat-Treated High-Transmission Glass Insulating Glass Unit Laminated Glass Lite Low-emissivity (or Low-E) Luminous Efficacy (Light-to-Solar Gain Ratio) Multiple-Glazed Units Muntins Patterned Glass Polyisobutylene Polysulfide Sealant Reflective Glass Relative Heat Gain Roll (or Roller) Distortion Roll Impressions Roll Marks (also Roll Scratches) R-Value STC (Sound Transmission Class) STL (Sound Transmission Loss) Sandblasted Finish Scratches Sealant Seeds Shading Coefficient Sight Line Silicone Sealant Sloped Glazing Solar Control Glass Solar Energy Reflectance Solar Energy Transmittance Solar Heat Gain Coefficient Spandrel Spectrally Selective Glass Stain Strain Pattern Structural Silicone Glazing Tinted Glass Transmittance Ultraviolet Unit United Inches U-Value Visible Light Reflectance Visible Light Transmittance