Overhangs are considered exterior shading in the industry/practice/academia. Any obstruction that prevents solar gains by blocking radiation from entering the w

Overhangs are considered exterior shading in the industry/practice/academia. Any obstruction that prevents solar gains by blocking radiation from entering the window falls within the general category of external shading, whether that’s a fancy high tech actuated shading system, a grille, a simple awning, a structural overhang, vertical fins, etc.