Vinyl has come a long way since its introduction to the window-buying market in the 70s. Vinyl holds up against corrosion, minimizes the loss of warm air, is weatherproof, and doesn't experience rot. Vinyl windows are constructed with insulating layers in the frames, so when they're installed professionally, they form a water-tight seal. They are an outstanding material for energy-efficient windows.

Aluminum is susceptible to heat transfer, which means these frames aren't exactly the best-insulating windows.

Wood windows were the first pick for years, and although they are a great option for many people, wood requires more maintenance because they are susceptible to rot in wetter climates. Once wood windows have sustained rot or wear, they leak air and moisture from a broken seal, causing more damage. Wood-clad styles don't have many temperature-loss issues because they're built with a timber interior and aluminum or vinyl exterior that offers long-lasting durability.

Glass is another material that contributes to the energy efficiency of windows. Double-pane windows filled with argon gas and coated with Low-E are potentially the most efficient. They also provide the most value and care for the inside of your home from the sun's heat and UV rays in the summer while providing insulation that prevents warm air transfer when the temperatures drop outside.