Building shade products as rugged and light weight. Because building exterior shade products exposed to withstand wind and rain, so to prevent rust off. Good architecture shade products must be able to flexibly adjust the angle of the sun, to achieve the greatest degree of dimming the sun and ventilation. Color shade component is also very important, not only for aesthetic and artistic impact on the overall architecture, more importantly, the color shade components for different levels of light absorbing reflection, thus affecting the shading effect. Therefore, a good shade toward the sunny side should be strongly colored reflective shiny colors. In the side facing away from the sun, it is best for darker colors, to avoid glare. Building exterior shade than sun shade interior insulation effect is much better, well-designed building exterior shading can effectively block more than 70% of solar radiation, while the interior shade shelter probably only 20%. Therefore, in terms of building shading, building exterior sun visor used for building insulation, energy efficiency, and building interior shade used for fine adjustment of indoor lighting, occlusion of privacy, the role of decorative internal environment.