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Window Sash Repairs
Sashes for windows must be regularly checked for mold, mildew, and damage. You can save the cost of repairs in the future by catching these issues in the early stages before they become out of control.
The sash is an inside frame that is able to move vertically up and down in windows that open. This article will teach you how to make several simple sash repairs.
Weather Stripping
Wood window sashes provide a classic aesthetic to your home. When properly maintained, they can last for a long time. However, they can get damaged or deteriorated over time due to exposure or normal wear. Sash repair experts can restore windows to their original condition and maintain their beauty much longer than replacement windows.
The first step in repair sash windows is to address weather stripping. It's found on both the sash as well as the frame. It could cause drafts if damaged or is loose. To fix it, begin by finding your window brand and the date of manufacture for the glass (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 replacement weather stripping that matches.
Then, take it off and set it on a work surface to allow access to all four sides. If your sash has been double-hung, take out the weights using their ropes that should have fallen into the pocket within the jamb lining. Once you've taken the sash off using a utility knife, you can use it to remove the old weather stripping at the corners, then remove it manually or using a putty knife.
After the sash has been cleared, you can install the stoppers that separate the two sashes. These are long pieces of wood that are used to separate the two sashes. Pam prefers standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. However, you can also use for a scrap piece of lumber.
After removing the stopper for the parting and trimming it to length and then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound using your putty tool, and allow it to dry for at least a day. Once it's fully cured and dried, apply a second coat of acrylic latex paint. This will protect the putty and give your sash a fresh appearance.
Sash Hardware
The hardware that supports window sashes is susceptible to wear and tear due to the wear and tear of use, and the result can be a window or door that can't be opened or closed easily. The good thing is that fixing and replacing this hardware is typically quite simple and inexpensive. If you're having trouble opening a sash, spray some oil into the jamb channel. Then, slide the sash up and open to see if this resolves the problem. If the issue persists it's likely to be due to the sash's balance. You will need to take off the window sash in order to access the hardware.
Window sashes should be able to open and close with minimal effort. However, this could be difficult if the weights are worn out or the sash meeting rail is not properly coated. This issue can be caused by a variety of things, such as the lack of maintenance or a mismatched weight rating for a particular window sash.
If the hinge arms of a window begin to sag, this can cause the sash to slide and eventually land on the frame in the corner opposite the hinge arm (Photo 1). To fix the problem ensure that the sash is aligned in the frame opening and then take it off. If the sash was fixed to the hinge arm, unbolt the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).
Due to hinges that are sagging, and a general deficiency in energy efficiency, windows that are old especially in older homes, can be difficult to open or close. Sometimes, a few simple fixes can help these windows function smoothly once more and help homeowners save money on energy costs.
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 help you to position the channel in the proper place when you are finished. Take the sash off and then remove all hardware including the parting beads, cords, and chains that keep the sash in place. A hot gun with nozzle shield and a medium setting can soften any hardened putty. Remove the old sash and put it in a labeled bag.
Sash Weights
If your window sash repairs are to replace a damaged cord or to keep your windows functioning, replacing worn out sash weights will improve sash operation and cut down on energy costs. Sash weights are heavy, lead or iron cylinders that are enclosed inside a hidden compartment and connected to the movable the sash with a rope. They are counterbalancers which allows the window to be opened and closed without the use of electrical or mechanical devices. When they fail, sashweights are usually neglected or not used by homeowners.
It's difficult to retrieve a sash-weight that has fallen from the cavity, so you'll want to find one that fits properly. You will also require a fresh piece of string, a length sashcord and a few sashpulleys to secure the weights you are replacing to the cord.
Mortise and Tenon joints can be used to join old wood windows. The wood pegs that keep the parts together can be removed with the use of a pin punch and hammer. The majority of these pegs are big on one side, but smaller on the other. It is crucial to remove first the smaller diameter sides. Sashes that were made later in the century utilized 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 area loose with mallets.
After the sash is removed then you can take out the sash stop and access the weight pocket. This is usually done via an opening at the bottom of every jamb. This hole is covered with the wooden panel which can be removed to reveal the inside workings.
After the sash has been stopped and the access panel has been removed, you can take off the old weight and replace it. Make sure you weigh the sash prior to you begin, as the old weights may be different sizes than what is needed. Once the new weight is installed then tie a string to it and thread it through the sash pulley. Then, you can attach the string to the boxed frame. Leave a few inches of space at the top of the string for future adjustments.
Sash Cords
In most old double-hung window, a chain or cord is affixed to the weights. This keeps the sashes within the jamb balanced. Over time, these cords may become damaged and render it impossible to raise the windows. A new sash cord will restore the ability to move the sash upwards and downwards and keep it in place when it is opened.
To replace sash cords the first step is to remove the access panels from the jambs. They are typically attached by nails or screws and must be removed. You may be able to use a hammer and chisel for removing them but it's best to lay down dust sheets before starting any work.
After removing the access panel, you can begin working on the sash. Take the narrow beads (also known as "tie rails") out of their grooves with flat bar or chisel. They are typically wedged into or nailed, but they can be removed and it's worth your time. If the sash is in place, pry out the mortise and tenon joints with a hammer and pin punch or screwdriver, and then take out the wood pegs attached to each component. It should now be possible to move the sash around freely, though it will probably need some lubrication if it feels stiff.
With the sash open Take a measurement of the sash chain to reach from the pulley at the top of the jamb to the sash slot at the bottom. Cut the chain or cord and secure it as in Step 6 above. You can employ a hammer, nail or screws, but nails are less likely to cause damage.
If window repair don't have an upgrade kit to replace the old counterbalance system, it's best to keep the original balancing weights in place. They're not costly and simple to install if you buy them at architectural salvage stores. Depending on the size of your window two or three sash weights could be needed to keep it in an open position.