There are two main reasons to install double glazed windows. Firstly, to keep the temperatures inside the house evenly; in other words, when it is hot or cool outside, the temperatures inside do not change much. Secondly, to reduce the noise from busy roads, airplanes or from the neighbours.
Important for the optimal performance of the double glazed window is a strong glass, a certain distance between the panes, which is filled with an inert gas, and a reflecting coating on the pane to reduce thermal radiation.
Modern double glazed windows reduce energy losses by round 80% compared to single glazed windows. The costs for quality double glazed windows are considerably higher than for cheap single glazed windows. However, the additional costs will be offset by energy savings after some years. And the increased living comfort is a free bonus.
Read more about modern double glazed Windows in Perth.