 |
 |
 |
 |
Featured: Deck, Porch & Patio |  |
|
| ||
 |
 |
BobVila.com > Channels > Doors & Windows > All Tips > U-Value Windows U-Value WindowsThe lower the U-value, the better the insulation. In colder climates, a U-value of 0.35 or below is recommended. These windows have at least double glazing and low-e coating. Related Showrooms• Sears - Custom-Fit Replacement Windows and Entry Doors• ETO Doors - Shop for Interior & Exterior Doors - Lowest Price Guaranteed | |
