Window Sash Repairs
Window sashes need to be checked regularly for mold, mildew and damage. You can save the cost of repairs in the future by catching problems early before they get out of hand.
The sash is the internal framing that can be moved vertically upwards or downwards in windows that open. This article will show you how to make several simple repairs to sash.
Weather Stripping
Wooden window sashes are a great way to add a classic look to your home. They are also durable and last for a long time if they are properly maintained. They can, however, be damaged or degraded over time, due to exposure and normal wear. Sash repair experts can restore windows to their original condition and maintain their beauty longer than replacement windows.
Weather stripping is the first thing to address when repairing windows with sash. It is located on both the frame and the sash. It can cause drafts if it's worn or loose. To fix it, begin by determining your window's brand and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Take the sash off, and mark its width and height so you can get new weather stripping that is compatible with the original.
Then, remove the sash and place it on a surface to allow access to all four sides. If your sash was double-hung, you must remove the weights with their ropes that should have fallen into the pocket in the jamb lining. After removing the sash using the utility knife, take off the old weather stripping by hand or with a putty knife.
When the sash is clean and clean, you can put in the parting stops. These are long pieces of wood that are used to separate the two sashes. Pam prefers to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard, but you can also use scrap wood.
After removing the stopper and trimming it to length, apply a thin coat of glazing compound on the bottom of the sash. Smooth the compound with your putty tool and allow it to dry for at least one day. When it's completely dried then apply a top coat of acrylic latex paint. This will protect the putty and give your sash a modern look.
Sash Hardware
The hardware that supports window sashes can wear out with time and use. This could result in a door or a window that is difficult to open or close. It's good to know that replacing and repairing this hardware is often easy and affordable. If a sash isn't easy to operate, try spraying some lubrication into the jamb channel and then slide it open to see if this fixes the problem. If the issue persists it's most likely that the sash balance is off. You'll need to remove the window sash in order to reach this hardware.
Sashes for windows should be able to be able to open and close with minimal effort. However, this could be a challenge if the weights have been worn out or the sash-to rail connecting rail isn't properly coated. This problem can be caused by a number of things, such as the lack of maintenance or the wrong weight rating for the particular window sash.
If the hinge arms of a window begin to sag, this can cause the sash's to drag and eventually strike the frame in the corner in the opposite direction of the hinge arm (Photo 1). To remedy the issue, make sure that the sash is aligned in the frame opening, and then remove it. If the sash was attached to the hinge arm, unbolt the hinge and replace it. (Photo 2). Next, install window repair (Photo 3).
Due to hinges that are sagging, and a general deficiency in energy efficiency, windows that are old particularly those in older homes, may be difficult to open and close. In many cases just a few easy fixes can allow these windows to operate smoothly again and save homeowners money on energy bills.
To complete these repairs to sash, it's important to have all the tools needed before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will assist you in getting the channel back into place correctly when you're finished. Take the sash off and take out all the hardware including the parting beads cords, chains, and cords that keep the sash in place. A hot gun with nozzle shield and medium setting will soften any hardened putty. Remove the old sash, and keep it in a labeled bag.
Sash Weights
No matter if your window sash repair needs are to replace a damaged cord or simply to ensure that the windows are functional by replacing worn out sash weights will improve sash operation and reduce energy consumption. Sash weights are composed of iron or lead cylindricals that are contained inside a concealed cavity, and attached by ropes to the moveable window sash. These weights function as counterbalances, which allows you to open and close the window without having to use mechanical or electrical devices. If they fail, sashweights are usually left unnoticed or disabled by homeowners.
A weight from a sash that fell out of the cavity is difficult to get back and you'll need to find a new one that fits properly. You will also require a new piece of string, a length of sashcord and some sashpulleys to tie the new weights to the cord.
Older windows made of wood are joined by mortise and tenon joints. The wood pegs holding the components together can be removed using pin punches and hammers. The majority of them are large on one side, but smaller on the other. It is essential to remove first the smaller diameter sides. Sashes that were made later in the century made use of glue instead of pegs. They can be separated by cutting through the glue line using the help of a knife, and then tapping the mortised part loose with mallets.
Once the sash has been released, you can remove the sash stops and access the weight pockets. This is typically done by drilling a small hole at the bottom of each jamb. The hole is surrounded by a wooden panel that can be removed to reveal the interior workings.
Once the sash is stopped and the access panel has been removed, you are able to remove the weight you used and replace it. First, weigh the sash because the weights you've got may not be of the right size. Once the new weight is installed you can tie a string around it and thread it through the pulley of the sash. Then, attach the string to the boxed frame. Leave a few inches protruding at the end of the string to allow future adjustments.
Sash Cords
In the majority of old double-hung windows, a cord or chain is attached to the weights. This helps keep the sashes within the jamb level. Over time these cords can break, making it impossible to raise the window. A new sash cord can restore the ability to move the sash up and down and hold it in place when it is opened.
The first step in replacing sash cords is to find and remove the access panels in the jambs. They are typically installed by screws or nails and must be removed or relocated. It is possible to take them out using the hammer or chisel but it is always better to lay out dust sheets before starting any work.
After the access panel has been removed, you can begin working on the sash. Take the narrow beads (also called "tie rails") out of their grooves with a chisel or flat bar. They are usually wedged in or nailed, but they can be removed and it's worth your time. If the sash is still in place, pull the mortise and tenon joints free using a hammer or screwdriver, then remove each wood peg. It should now be possible to move the sash around freely, although it might require oiling if it seems stiff.
With the sash open Take a measurement of the sash chain to extend from the pulley in the top of the jamb to the sash slot on the bottom. Cut the chain or cord and attach it in Step 6 above. You can employ a hammer, screws or nails, but nails are less likely to cause damage.
It is best to keep the weights that came with the original counterbalance unless you have purchased a kit that will replace the old counterbalance. They are not expensive and simple to install if you buy them at architectural salvage stores. Based on the size of your window one or two sash weights may be needed to keep the sash in an open position.