The National Great Rivers Research and Education Center serves as both a museum and a scientific research facility for individuals interested in how the ecosystem functions at the confluence of the Mississippi, Missouri and Illinois Rivers.
Something new may be learned from nearly every retrofit roofing project. Every roofing project is completed with different materials in different places on different structures and often with different clients. The renovation of the roof and parapet of the Green-Meldrim House in historic downtown Savannah, Ga., is one project that provided more than its share of lessons.