Double glazed windows are windows that are formed by two panes of glass, spaced millimeters apart. Double glazed windows increase the energy efficiency of the building they are in because they are excellent insulators. They allow as much light to pass through as normal windows, but don't allow as much heat to be transferred.
Choose Double Glazing because:
Types of Double Glazed Windows
The windows can be framed in:
Wood
Aluminum
Vinyl.
Wood requires more upkeep than the other two varieties and is more expensive, but is generally considered the most attractive option. Any of these will be fine for protecting the window; however, careful maintenance should be employed to avoid warping or other problems that could allow moisture into the windows.
