The outcome surprised many, as it revealed replacement does not necessarily have an advantage from a cost or environmental perspective. Having accurate data, FBRC proposed a creative solution, which was acceptable to consulting parties. Over the next 10 years, FBRC will repair and replace windows in the historic housing. The resulting mix of refurbished historic windows and new replacements will improve the quality of life for residents on Fort Belvoir while maintaining the historic character of the Fort Belvoir Historic District to the highest degree.