Loans Mortgage Pets Real Estate Refinance Lifestyle Overhangs for Shading Building Elements Exterior overhangs provide a practical method of shading building elements such as windows, doors, and walls.
Overhangs are most effective at midday.
If the building element bears more than about 30o off true south, the effectiveness of an overhang, as with any solar feature, begins to decrease significantly. Overhangs usually only affect the amount of direct solar radiation that strikes a surface. Diffuse sky and reflected radiation gains are not often directly affected by overhangs. The higher overhead the sun is, the shorter the shadow a person will cast on the ground. However, the short brim of a baseball cap can create a long shadow across the body of a standing person.