Double hung windows are those where both the top and bottom sashes open
. You may wonder if there is any point in this kind of functionality. After all, they have been around a long time now and are often found in old houses. Have these windows outlived their usefulness?
History
Double hung windows date back from the seventeenth century and they used to be a sign of wealth. The more glass you could afford, the richer you were. This era was also the era of the beginning of scientific discoveries in thermodynamics.
Thermodynamics
The application of thermodynamics to the design of windows resulted in double hung windows. That was the way in which people first began to be able to regulate air flow and temperature in the house.
Thermodynamics is a simple principle. We know that hot air rises up and cold air sinks. Therefore, with the top sash open, the warmer air can escape, to be replaced by cooler air which can flow in through the lower sash. Double hung windows a great form of low cost air conditioning! That will save you a lot of money on your bills. It is also environmentally friendly to use double hung windows in this way.
Lighten up
These windows are tall and they allow a lot of light to flood into the room. That is good for the look of the room and also for lifting your mood. Additional sunlight has been proven effective in treating many depressive disorders.
So, you can save money and help to save the planet. They let in more light which looks good and helps you feel good. Yes, there are many advantages to having double hung windows in your home!