Single glass panes simply cannot keep your property as well insulated as double glazing, especially during cold or windy weather. Since air is a poor heat conductor, a layer of air between the double glazed panes acts as a poor heat conductor or rather a good insulator and prevents heat loss. The gap between the panes is generally between 12mm and 20mm thick. This gap can be filled with air or often an inert gas, such as Argon, which will increase insulation.

The two common types of double-glazing are factory-sealed units and secondary glazing. The difference is clear. Secondary glazing supplements th existing windows, where as factory-sealed units as designed as replacements. Sealed units are much the better option.

You can also install secondary double-glazing over your existing windows. To achieve this, you only need to fit another pane of glass over the existing one. People usually insert the glass on the inside. This does not effect the look of the outside or the security.

Double-glazing has many advantages. Most obvoiusly, it reduces noise, prevents draughts and retains the heat to keep the house warm during the cold season. This saves you a lot of money because it lowers your heating and fuel bills. Your house is also more peaceful as noise from outside is reduced significantly. Double-glazed doors and windows increase the value and enhance the look of your property. These also provide much better security. These windows are more difficult and noisy to break and come equipped with a range of security locks and bolts to deter intruders and burglars. They seem to be one of the best options for home worldwide.