A Brief History Of Window Sash Repairs In 10 Milestones

Window Sash Repairs
Window sashes need to be regularly checked for mold, mildew and damage. You can save future repair costs by catching problems in the early stages, before they become out of control.
The sash is an interior frame that can move upwards and downwards in windows that are open. This article will show you how to perform simple repairs to sash.
Learn Additional Stripping
Wooden window sashes are a great way to add a classic look to your home. They are also sturdy and last for a long time if they are properly maintained. They can, however, get damaged or deteriorated over time due to exposure or normal wear and tear. Thankfully, sash repair experts can bring your windows back to their original condition and keep them looking fantastic for a longer period of time than replacement windows.
The first step to repair sash windows is to address weather stripping, which is found on both the sash as well as the frame. It can cause drafts if it's worn out or 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). Remove the sash, and mark its width and height so that you can get replacement weather stripping that matches.
Then, you can remove the sash from its holder and place it on an even surface that allows you to see all four sides. If the sash is double-hung, you'll also need to remove the weights as well as their accompanying ropes, which should have fallen into the intended pocket in the jamb liner. After removing the sash using the utility knife, remove the weather stripping from the old sash by hand or using the putty blade.
After the sash has been cleared, you can replace the stoppers that separate the two sashes. These are long pieces that divide the sashes. Pam likes to replace these with standard 1/2-inch by 3/4-inch window trim from the lumberyard, but you can also use a piece of scrap wood.
After removing the stoppers for parting and cutting them to the desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth out the compound using your putty knife and let it dry for at least a few days. When the putty is fully cured and dried, you can apply an acrylic latex topcoat. This will protect the putty and give your sash a fresh appearance.
Sash Hardware
The hardware that holds the window sashes can wear out over time and use. This could result in windows or doors that is difficult to open or close. The good news is that repairing and replacing this hardware is typically very simple and cost-effective. If a sash is difficult to operate you can try spraying some oil into the jamb channel, and then slide it open to see if this solves the issue. If not, the issue is likely to be with the balance of the sash and you'll need to take out the sash in order to access this hardware.
Ideally, window sashes should move open and shut without effort, but this can be an issue when the weights wear out or if the sash's meeting rail isn't properly coated. This problem can be due to various reasons, including the lack of maintenance or a mismatched weight rating.
If the hinges on the window begin to move, this could cause the sash to drag, and then eventually to hit the frame at the opposite corner (Photo 1). To remedy the issue, make sure that the sash is centered in the frame opening, and then remove it. If the sash is fixed to the hinge arm, take it off the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).
Old windows, particularly those in older houses, can be difficult to close and open because of sagging hinges and general lack of energy efficiency. In most instances, a few minor repairs can transform these windows into smooth operators for the first time and save the homeowner cash on energy costs.
In order to make these repairs to the sash it is important to have all of the necessary tools lined up before you begin. Mark the hinge channel's location on the frame (Photo 1) with pencil. This will assist you in getting the channel back in the correct position after you've finished. Then, remove the sash and remove the hardware, including the parting beads (Photo 2) and the cords or chains that hold it in place. Soften any hardened putty with a heat gun set to medium and fitted with a shield to block the nozzle. Remove the old sash and store it in a bag with a label.
Sash Weights
Whether your window sash repairs are to replace a broken cord or to ensure that the windows are functional by replacing worn out weights on sash can improve sash operation and help reduce energy consumption. Sash weights are hefty lead or iron cylinders enclosed in a concealed cavity and connected to the movable the sash with a rope. These weights act as counterbalances, allowing you to open and shut the window without having to use mechanical or electrical devices. When they fail, sashweights are usually neglected or not used by homeowners.
It's difficult to retrieve the sash-weight that fell from the cavity, so you'll want to find one that is suitable for the. You will also need an additional piece of string, a length sash cord, and a few sash pulleys that will tie the new sash weights to the sash cord.
Older wood windows are joined by mortise and tenon joints. The wood pegs that hold the parts together can be removed with the use of a pin punch and hammer. The majority of these pegs have an enormous diameter on one side and a smaller one on the other side, so it is important to remove the smaller-diameter sides first. Sashes made later in the century made use of glue instead of pegs. They can be separated by cutting through the glue line with an instrument, and then tapping the mortised section loose using mallets.
After the sash has been removed, you can remove the stopper on the sash and get access to the weight pocket. This is usually done via a small hole at the bottom of every jamb. The hole is then covered with an access panel of wood that can be cut off to allow you to see the inner workings of the frame.
Once the sash is stopped and the access panel is removed, you can remove the weight you used and replace it. Be sure to weigh the sash before you do this, since the old weights could be different sizes than the one you need. After the new weight is in place you can tie a string around it and then thread it through the pulley for the sash. Then attach the string to the boxed frame, leaving a few inches of string hanging from the head for future adjustments.
Sash Cords
In the majority of old double-hung windows the chain or cord is attached to the weights. This keeps the sashes within the jamb in a balanced manner. As time passes, these cords can get 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 hold it in place when it is opened.
To replace sash cords, the first step is to remove the access panels from the jambs. These are usually screwed or nailed in and need to be removed. You could use a hammer or chisel to prise them off however, it is always best to lay down dust sheets prior to commencing any work.
After you have removed the access panel, you can begin to work on the sash. Utilize a flat bar or chisel to pull the small parting beads out of their grooves. It is essential to take your time because they are usually placed in a wedge or nail. If the sash remains in place, pry the mortise-and tenon joints using a hammer or screwdriver, then remove each wood peg. The sash should be able to move freely now, but it may require some lubrication to feel less stiff.
Determine the length of the sash chain or sash cord required to reach the sash slot at the bottom from the pulley at the top of the jamb. Cut the cord or chain and fix it using Step 6 above. You can employ a hammer and nail or screws, but nails are less likely to cause damage.
If you haven't purchased an upgrade kit to replace the old counterbalance system it is recommended to keep the original weights for balancing in place. It's not expensive to buy them from architectural salvage stores and they will be easy to install once you've got the sash open. Based on the size of your window two or three sash weights might be required to keep it open.