Any good Double Glazing Hereford company will tell you how important it is to have at least double glazing in the windows of your home. They help to prevent some of the heat that you generate in your home during the winter months from escaping and causing your home to decrease in heat and your energy bills to be high, and they also act as a sound barrier to the noises that occur outside. Here is some information on how double glazing works.
The two panes of glass that are used in double glazing are separated by a void that is filled with argon gas. This is what keeps your home more energy efficient and reduces noise pollution. It works in a similar way to cavity wall insulation. The argon gas is a poor conductor of heat so this is how it helps to stop the warm air from escaping from your home. It is the second pane of glass that holds this gas in place and also helps to reduce the spread of noise both from the outside in and the inside out.
It is much more effective than single glazed glass and there are a variety of types available on the market depending on your individual home needs.