As a homeowner, I want to understand the NFRC label. Explain what 'U-Factor' measures and its typical range, what 'Visible Transmittance' measures and its typical range, and what 'Solar Heat Gain Coefficient' measures and its typical range, based on the information provided on the NFRC homepage.
Navigate to the NFRC homepage (https://nfrc.org/). Scroll down the page to locate the section explaining the NFRC label and its components. Identify the definition and typical range for 'U-Factor'. Identify the definition and typical range for 'Visible Transmittance'. Identify the definition and typical range for 'Solar Heat Gain Coefficient'. Synthesize this information into a concise explanation for each metric.
State that U-Factor measures how well a product keeps heat from escaping a room, and that its range is 0.20-1.20. State that Visible Transmittance measures how well a product lights a home with daylight, and that its range is 0-1. State that Solar Heat Gain Coefficient measures how much solar heat a product allows in, and that its range is 0-1.