1) The protection from heat gains due to direct solar radiation;

2) Shading is provided by

(a) permanently attached exterior devices, glazing materials, adherent materials applied to the glazing, or an adjacent building for nonresidential buildings, hotels, motels and highrise apartments, and by

(b) devices affixed to the structure for residential buildings. [See California Code of Regulations, Title 24, Section 2-5302.