Window glass is used for functional as well as aesthetic purposes. It enhances the architectural façade of a building, facilitates natural light to enter and allows homeowners to enjoy surrounding views. Home windows use sheet glass, plate glass, figured rolled plate and rolled plate glass that are installed within tough frames.
Low emission glass (or low-e glass) is a type of window glass that is coated with a microscopic layer of metal oxide. This layer allows sunlight to enter but filters out the heat. Low-e glass is an insulating glass that reduces heat transfer through the glass and improves its energy efficiency. It allows homes to stay warmer in the winters and cooler in the summer by rejecting the hot rays of the sun. Low emission glass cuts down the cost of artificial lighting and air conditioning.
Impact Resistant Glass
Impact resistant glass is regular glass that is strengthened and reinforced by a laminating or glazing material. It is available in two main forms: shatter-resistant glass film coating and laminated glass. Shatter resistant film layers the surface of a window with a coating that keeps the window intact when it cracks or breaks. Laminated impact resistant glass is made of two layers of glass that have a bonded, shatterproof inner core made of a laminated material (typically PVB or polyvinyl butyral). Impact resistant glass is framed in a heavy-duty window frame. The glass resists shattering when hit by a forceful object (such as a golf ball or a branch of a tree). An impact resistant glass greatly reduces debris and water penetration, and prevents injury during hurricanes, tornadoes and explosions.
Reflective glass is a type of glass that is coated with a reflective material or coating (commonly metal oxide). Reflective glass is used to reduce heat loss and gain and allow homes to be climate controlled. Heat reflective glass is available in two types: soft-coat (or sputtered) glass, and hard-coat (pyrolytic) glass. Soft coat glass is susceptible to moisture and air damage and is commonly sealed within triple or double glazed windows. Hard coat glass is not sealed but is not as effective as soft coat glass in keeping the heat out. Reflective glass provides privacy during the day but allows full visibility from the outside during the night, especially if the lights are switched on.