When selecting windows for a building, it’s essential to understand window ratings, as they provide valuable information about a window’s energy efficiency and performance. Understanding these ratings allows homeowners and architects to make informed decisions that contribute to energy savings and occupant comfort. In this article, we will explore common window ratings, including U-Factor, Solar Heat Gain Coefficient (SHGC), Visible Transmittance (VT), and Air Leakage (AL), and their significance in assessing window performance.
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