a) The coated side is a layer of metallic oxides on the glass surface, due to pollution, acidic nature of rain, the coated side might deteriorate over a period of time
b) The color of the glass will not be seen if you put the coated side is outside. The glass will look the same if it is Light Gold or Blue or Green.
c) The performance of the glass i.e the amount of heat that is cut due to the solar control property of the glass remains the same if the coating is inside or outside. There is a misconception that if the coated side is outside the heat control is better.
A solar control glass or the Sun Ban range of glass is a glass with a special coating designed to reduce the amount of heat entering a building.Solar control glass reflects and absorbs heat as well as filtering light for reduced glare.Using a Sun Ban glass can reduce the need for air-conditioning. There are many types of solar control glass offering different aesthetic options; tinted, reflective and neutral.
Heat gain on the inside of the building due to direct solar radiation incident on glass is measured through the solar factor of the glass. Its the sum of percentage of incident solar energy directly transmitted and incident solar energy absorbed and re-emitted inside.
Solar control/Sun Ban glass is typically used to prevent excess heat build up in areas where large amounts of glass are used. For example glass roofs, south-facing elevations. Solar control glasses will be the choice of product when considering various characteristics such as performance and appearance requirements, e.g. very reflective, coloured, and neutral
