When it comes to the energy performance ratings of the replacement windows, two usually come to mind: the SHGC and U-value. As one of the leading window companies in the Seattle area, Renewal by Andersen® of Seattle discusses the difference between these two window ratings and their significance in choosing the ideal windows for your home.
Solar Heat Gain Coefficient (SHGC)
The solar heat gain coefficient (SHGC) measures how much of the sun’s heat is transmitted through your windows. It is shown as a number between 0 and 1, with lower numbers indicating less solar heat gain and better performance. This means that when you select windows with a low SHGC, your home remains cooler in the summer as it minimizes the amount of heat that enters from the outside.
If you live in a sunny climate or a home with large window areas exposed to direct sunlight, it’s a good idea to check the SHGC rating of your window replacement. For instance, your home might require windows with a lower SHGC to maintain a comfortable indoor temperature during the warm summer months.
On the other hand, the U-value measures how well a window insulates against heat transfer. A lower U-value indicates better insulation and reduced heat loss or gain through the window. As such, windows with a low U-value will help keep your home warmer in the winter and cooler in the summer, ultimately contributing to lower energy bills.
When selecting windows, it’s essential to consider the U-value to ensure optimal energy efficiency and insulation. For example, double-hung windows with a low U-value will provide better insulation and create a more comfortable living environment.
Comparing SHGC and U-Value
When looking for replacement windows, make sure they have a balanced combination of low SHGC and low U-value to ensure maximum comfort and energy efficiency throughout the year. Also, take note of factors such as your home’s location, orientation, shading, and local climate when making your selection.
Choose the Right Windows for Your Home
Understanding the difference between window SHGC and U-value plays a crucial role in selecting the right windows for your home. For expert guidance on choosing the perfect windows for your Seattle home, look no further than Renewal by Andersen of Seattle. Our team of professionals is ready to help you choose the best windows that balance comfort, efficiency, and style, tailored to your specific needs. Give us a call at (206) 777-0954 or complete our contact form to learn more about your options, from casement windows to gliding windows.