Single and Double Hung Windows
A double hung window is made up of two independent sashes: one at the bottom and the other at the top. These can slide up and down in separate channels.
A single-hung window is much like its double-hung cousin, except that the top sash is fixed while the bottom sash is free to move up and down.
One advantage of both varieties of hung windows is that the sashes can either be tilted or removed completely – this allows for easy cleaning.
The main disadvantage of these types of windows is that they may not provide as much insulation as other styles do. Specifically, the sliding operation of the sashes means that there could be small gaps around the whole window.
These windows are ideal for traditional houses, especially those with colonial and Victorian style architecture. These windows are typically located one by one and their vertical proportions match well with taller structures