An easy way to see if its time for a window's replacement is to feel around the edge of the frame. If you can feel air moving around the window, chances are it's time for a new one. Sagging frames, loose weather-stripping, sashes that stick or hang and cracks or other glass damage all reduce a window’s efficiency and performance.
Construction materials also matter. In fact, aluminum frames actually cost homeowners money. Aluminum is an excellent heat conductor, which means the frames are essentially pulling heat out of the house onto the metal. Vinyl is more efficient than aluminum, but is less structurally strong and can experience sagging and binding during temperature swings. Materials such as wood or Renewal's patented Fibrex composite have a lower heat transfer rating and hold up better over time.
Some styles are also more energy efficient than others. As a general rule, operable windows are slightly less efficient than fixed windows of the same size due to being opened and closed. In some cases, sliding windows are outfitted with non-compressible weather stripping, which doesn't close as tightly as a compressible seal. When upgrading your windows, it's important to take advantage of advanced technology and the newest construction materials.
Sometimes though, you need an expert's opinion. That's why Renewal by Andersen is offering free consultations to homeowners looking to give their windows a makeover. To learn more or schedule an appointment, click here.