Glass is a non-crystalline, amorphous solid that is often transparent and has widespread practical, technological and decorative usage in for example, window panes, tableware and optoelectronics. The glass that absorb, refracts or transmits light. It can be made transparent or translucent so it adds extraordinary beauty to the building. Glass transmits up to 80% of available natural day light in both directions without any yellowing, clouding or weathering. It is an inorganic, transparent or translucent material which can be molded into any shape. It is a very Light weight building material hence helps in reducing the dead load of the Building. The external glass is treated so as to reduce glare, prevent heat absorption and resistance to UV light. This helps in making the building energy efficient.