Window U-Value
Use proper U-value in replacement windows.
When replacing windows, use windows with a 0.46 U-value or better that has optical properties appropriate for building use. (U-0.46 is a Low-E window in an improved metal frame.)
Use proper U-value in replacement windows.
When replacing windows, use windows with a 0.46 U-value or better that has optical properties appropriate for building use. (U-0.46 is a Low-E window in an improved metal frame.)
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