1. Insulation (U Value): The amount of heat gain or loss between interior and exterior environments. The lower the number, the more stable the room temperature.
2. Solar (SHGC): The heat transferred through the glass from exposure to sun radiation. The lower the number, the less heat is gained from the sun.
3. Daylight (Light Transmission %): The percentage of visible light passing through the glass. The higher the number, the clearer the glass.