A dual glazed unit consists of 2 pieces of glass which have a spacer between the frame is coated with silicone.
The exterior air must permeate the outer bit of glass movement through the atmosphere between the device and pass through the interior coating of glass. You can choose double glazed windows and noise reduction windows in Sydney through the internet.
Therefore it takes more for both the exterior air to move to the house and therefore the warmer atmosphere remains in the house longer also.
How energy efficient is a double glazed window?
As much as 30% of heat is lost from your home through windows. This could cost you hundreds of extra dollars every year in heating and cooling bills.
Double glazed windows are extremely energy efficient, cutting these heat losses by up to 50%, reducing the need for extra heating and, in turn, helping the environment.
Energy rated windows not only reduce your power bills but also provide a more comfortable and quieter home with fewer condensation problems.
With energy and green house gas reduction being the future of housing, it only seems practical to seriously consider double glazing your windows and doors. The above mentioned benefits not only affect costs while you're living in the home, but will benefit the home in the resale market as well.