Window Sash Repairs
Make sure to check the sashes of your windows regularly for signs of damage, mildew and mold. By catching these problems early you can save money on repairs in the future.
The sash is the internal frame that is vertically moved either up or down in windows that are open. This article will show you how to perform easy repairs to your sash.
Weather Stripping
Wood window sashes give an elegant look to your home and, when properly maintained, they can last for a long time. window repairs can, however, become damaged or degraded with time due to exposure or normal wear and tear. Sash repair specialists can restore windows to their original condition and maintain their beauty much longer than replacement windows.
The first step to repair sash windows is to address weather stripping. It's found on both the sash and frame. If it's loose or worn out, it could cause drafts and other issues. Start by identifying the window brand and the date of manufacture for the glass (etched on the glass's corner or on the aluminum spacers between panes). Then, remove the sash and mark its height and width to find new weather stripping that matches.
Then, remove the sash from the holder and place it on flat surfaces to allow you to see all four sides. If your sash has a double-hung, you'll need to remove the weights as well as the ropes that go with them which should have slipped into the intended pocket in the jamb liner. Once you've taken the sash off using a utility knife, you can use it to cut away the old weather stripping at the corners, then take it off by hand or with a putty knife.
When the sash is clean it is time to replace the parting stops. These are long pieces that split the sashes. Pam likes to replace these with standard 1/2-inch-by - 3/4-inch window trim from the lumberyard, however you could also use scrap wood.
After removing the stopper for the parting and trimming it to length after which, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound using a putty knife, and let it dry for at least one day. Once the putty has fully cure it is possible to apply a topcoat of acrylic latex. This will protect the putty and give your sash an updated appearance.
Sash Hardware
The hardware that holds window sashes is prone to wearing out from the wear and tear of use, and the result can be a window or door that can't be opened or closed easily. It's a good idea to know that replacing or repair of this hardware is typically simple and inexpensive. If you're having difficulty opening a sash spray some lubricant into the jamb channel. Then, slide the sash open to see if this resolves the issue. If not, the issue is most likely due to the balance of the sash and you'll need to remove the sash to gain access to this hardware.
Ideally, window sashes must swing open and closed with minimal effort however, this can be a difficult task when the weights are worn or if the sash meeting rail isn't properly glazed. This can be due to a variety of factors such as an absence of maintenance or a mismatched weight rating.
If the hinge arms of a window are beginning to lose their elasticity, this could cause the sash to drag and eventually strike the frame in the corner that's opposite the hinge arm (Photo 1). To fix the problem make sure the sash is centered in the frame opening and then remove it. If the sash was attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).
Old windows, especially those in older homes, may be difficult to close and open because of sagging hinges and a general inefficiency. In most cases, a few simple repairs can turn these windows into smooth operators and save homeowners money on energy bills.
It is crucial to have the tools you need before you start. Mark the hinge channel location on the frame (Photo 1) using pencil. This will assist you in getting the channel back into place correctly when you're finished. Remove the sash and take off the hardware including the parting beads (Photo 2) and the chains or cords that secure it. A hot gun with nozzle shield and medium setting will soften any hardened putty. Remove the old sash, and place it in a bag with a label.
Sash Weights
Sash weights can be changed to improve the performance of your window sash, and also reduce the energy cost. Sash weights consist of heavy lead or iron cylinders that are enclosed inside a concealed cavity, and are connected via ropes to the movable window sash. They provide counterbalance which allows the window to be closed and opened without the use of electrical or mechanical devices. When they fail, sashweights tend to be ignored or disabled by homeowners.
A weight from a sash that fell out of the cavity is difficult to get back, so you will want to find a replacement that fits properly. You will also require a new piece string, a length of sashcord and a few sashpulleys for tying the new weights to the cord.
Older windows made of wood are joined with mortise and tenon joints. The wood pegs that hold the parts together can be removed with pin punches and hammers. Most of them have a large diameter on one side and a smaller one on the other, so it is crucial to take out the small-diameter sides first. Later sashes used glue instead of pins. They can be cut by using a knife and mallets.
Once the sash has been removed, you can take off the stops on the sash and get access to the weight pockets. Usually, this is done through an opening in the bottom of each jamb. The hole is then covered with 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 that was previously installed and replace it. Make sure you weigh the sash prior to you do this, since the weights that were previously used may be different in size from what you require. After the new weight is installed you can tie a string around it and thread it through the pulley for the sash. Then attach the string to the boxed frame, but leave a few inches of string sticking out from the head to allow for future adjustments.
Sash Cords
Most old double-hung windows include a chain or cord connected to the weights that helps keep the sashes balanced within the jamb. As time passes, these cords may break, making it impossible to raise the window. A new sash cord will restore the ability to move the sash up and down and will keep it in its place when opened.
To replace sash cords, the first step is to remove the access panels from the jambs. They are typically screwed or nailed in and require removal. You may be able to use a hammer or chisel to remove them, but it's always better to lay down dust sheets before beginning any work.
Once the access panel is removed, you can start working on the sash. Utilize a flat bar or chisel to pry the small parting beads from their grooves. It is essential to take your time, as these are often wedged or nailed in place. If the sash is still in place, break the mortise-and tenon joints with a screwdriver or hammer and then remove each wood peg. The sash should be able to move freely, however it may require some lubrication to make it feel less stiff.
Measure the length of sash chain/sash cord needed to reach the sash slot on the bottom of the pulley located at the top of the jamb. Cut the cord or chain, and then secure it in the previous step. You can either employ a hammer, nail or screws, but nails are less likely to cause damage.
If you haven't purchased an item that replaces the old counterbalance system it is recommended to keep the original balancing weights in place. They're not costly and are easy to install if purchased them at architectural salvage stores. Depending on the size of your window, one or two sash weights might be required to keep it open.