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Double walled windows are provided for houses in cold countries?
Wiki User
∙ 7y ago
In cold countries, the windows in a room are provided with two glass panes with a layer of air in between. Since air is a poor conductor of heat, it checks the conduction of heat from the room to the outside in winter or the conduction from outside to the room in summer.
e.g.
The windows of air-conditioned railway coaches also have double glass panes with a layer of air in between the two panes to prevent conduction of heat through the window from either side, i.e., compartment to outside or outside to compartment.
The layer of air insulates and reduces heat passage through the layers of glass. Dual pane windows also deaden sounds more effectively.
Wiki User
∙ 7y ago
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