"That looks like a control trim accessory joint, not an expansion trim accessory joint. There's nothing wrong with ending a control trim accessory joint on top of a window as long as the stucco ends in a casing bead and there is a metal head flashing below the casing bead that is properly incorporated into the assembly." No casing bead.No head flashing.These are items that are only seen on commercial construction in this area. Also the the square is roughly a 12' x 12' area.