July 7, 2010
The Aesthetic Appeal Of Box Sash Windows
Sash windows are attractive features of many homes. The word “sash” means a frame or panel holding the glass of a window or door. As such, it might be a term used to describe parts of most types of windows and doors. But over the years it has come to be used more or less exclusively for widows that are open and shut by sliding the glass panels.
Because they are fitted into grooves the frames or panels are able to slide independently of each other. Because the grooves for each is separate from the other, the panels can even slide beside each other in a sort of overlap arrangement. Usually they slide up and down, i. E. Vertically. However, occasionally these windows are manufactured to allow for horizontal sliding. This construction is however, quite rare.
In most traditional styles each frame is made up of a number of glass panes. These are called “lights”. Each light is separated from the others by thin wooded strips called muntin bars. The whole assembly of panes and muntin bars is fitted rigidly into the bigger frame. Occasionally it is possible to find these types of windows with just a single large pane of glass in each panel. This is relatively rare.
Just for the record, here are the frame part names. There is the top rail the bottom rail and the side rails, called styles. For the bottom panel, the rail at the top, together with the top panel’s bottom rail are situated side by side when the window is closed. For that reason these rails are called meeting rails.
These windows are also called “box windows”. This is because the box construction is vital to the overall operation of such a window. Because larger individual panels would be virtually impossible to lift up and, even if successfully lifted, would immediately fall back down, once the person lifting took away his or her hands. This potential calamity is averted by the fact that inside the hollow box section on each side of the window there are heavy counter weights.
Each panel has its own two counter weights. There is a cord called a sash cord attached to the panel’s hidden sides. This cord passes up the side window frame’s grooves and over a recessed pulley at the top. It then comes down inside the box section where it is attached to the weight. These weights together are nearly the same weight as the frame, so that with them attached, lifting is no longer a problem. They even allow the frame to remain at whatever height the owner wishes, with no risk of it falling down.
These attractive windows can last a lifetime and give few problems. Unfortunately, usually due to questionable workmanship, this is not all the case. Many people encounter one or all of these problems. Rattling. This caused by careless fitting or the expansion of wooden parts. It can also be caused by the wind. This problem can relatively easily be remedied by a skilled craftsman. As can the problem of jamming or sticking. This is usually caused by sloppy painting, or by the wood expanding over time.
Despite the few extra problems and maintenance issues, Sash windows are still regarded by many people as the most aesthetically appealing of all windows. There is one important proviso of course. It is that the sash windows should be appropriate to the building’s architecture, in which they are installed.
Sash window restoration London locale gives new life to your old and worn windows. Your sash window company has the knowledge and experience to improve the look and operation of the windows in your home or business.
Filed under Blog by Patrick Dongola



Leave a Comment