A window frame is need to hold glass pieces What metal and p
Solution
1.Aluminum – Aluminum windows have poor insulation qualities, but changing your windows from old aluminum windows that are single glazed to new aluminum windows that are dual glazed and have high performing low-e glass will provide a noticeable improvement in insulation. If you already have aluminum windows and you do not plan to replace them all, this may be a good choice so that your new windows more closely match your existing windows. Also, aluminum is available with dark bronze anodized frames which may be a good choice if you want the look of a dark frame, or clear anodized if you want to keep a mid-century contemporary style.
2.Fiberglass – Fiberglass windows insulate well, are maintenance free and are available in dark colors. They are also easily painted if you want to change your color scheme at some point in the future. Unfortunately, fiberglass windows are usually quite expensive, often in the same price range as high-end wood windows.
3. Wood – Wood windows are available with or without a low-maintenance exterior cladding. If you are restoring an old home and want to stay as true as possible to the original windows, then you may want to choose windows without exterior cladding. Unfortunately, they will require regular painting, and if you want dual-glazed windows with low-e glass, they will be nearly as expensive as clad wood windows. Exterior cladding is usually aluminum or vinyl and is available in a variety of colors. If you are planning to retro-fit your existing windows, you will almost certainly need special sizes, and many wood window companies either charge extra for special sizes or do not offer special sizes at all.
4.Vinyl – Vinyl windows are far and away the most popular choice for window replacement, and for good reason. They are maintenance free, insulate well, make a smooth operating window and are relatively inexpensive. The downside is that they are usually only available in white and tan and vinyl cannot be painted. Some companies offer dark colored vinyl windows, but other companies have withdrawn them from the market due to failures associated with the dark material absorbing too much heat. Always check the warranty carefully.

