SOLUTION:

Thee building consists of 300 series windows with flat casing.  One of the side notes that can be attached to this project that might set it apart from others is the “horse collar” type windows you see with flat casing (there is one on either end of the photos) it consists of a arch top window which is taller than the 2 side picture window flankers on either side of it but we are able to put flat casing around the tops and sides of the unit which means a “inverted weld” is done and not many vinyl companies offer that type of look with flat casing already coming attached to the window.