Low-Emissivity Insulated Glass is to coat low emissivity silver and metal oxide layers on glass surface. The coatings on glass will show different colors. Its major properties are to lower the U value and selectively lower the SC which on the whole improves the glass energy efficiency. It features high infrared reflection. It can directly reflect far infrared. Because of its low surface emissivity (E), it absorbs and reradiates very little energy. It has a wide range of shading coefficient (SC) which can meet different solar control requirements according to different climates.  It can be divided into high transmission low-E glass and solar control low-E glass.