Endangered:

Historic Wood Windows

This is a thematic nomination aimed at bringing attention to the nationwide problem of the loss of original wood sash windows.  Many homeowners are replacing wood windows with vinyl windows under the false idea that they are more energy efficient.  Due to the high quality of materials and craftsmanship, however, the original wood windows can be as energy efficient as replacements and long-lasting if maintained or repaired properly.  One study showed that the payback period through energy savings by replacing historic wood windows is 400 years.  Most historic wood windows can be repaired and the repairs will cost less than replacement windows.