Window Sash Repairs
Regularly inspect the window sashes for damage, mildew, and mold. By catching problems before they become serious you will save money on future repairs.
The sash is the interior framing that can be moved vertically either up or down in windows that open. This article will show you how to do simple repairs to sash.
Weather Stripping
Wood window sashes add an elegant look to your home. When properly maintained, they will last for many years. However, they may become damaged or deteriorate as time passes due to exposure to the elements and normal wear and wear and tear. Sash repair timber windows experts can restore windows to their original condition and maintain their appearance longer than replacement windows.
The first step for sash window repairs is addressing weather stripping, which is found on both the sash and frame. If it's loose or worn out, it can cause drafts, as well as other issues. Begin by identifying the window's brand and the date of manufacture for the glass (etched on the corner of the glass or the aluminum spacers between panes). Remove the sash, and mark its width and height so you can get replacement weather stripping that matches.
Then, take the sash from its holder and place it on flat surfaces to allow you to reach all four sides. If your sash was repair double glazed windows-hung, you must remove the ropes and weights that should be buried within the jamb lining. After removing the sash using the utility knife, remove the old weather stripping by hand or using a putty blade.
After the sash is cleared, you can replace the parting stops. They are long pieces of wood that separate the two sashes. Pam likes to replace these with standard 1/2-inch-by - 3/4-inch window trim from the lumberyard, however you can also use scrap wood.
After removing the stoppers for parting and cutting them to the desired length, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife, and then let it dry for at least a few days. After it has fully dried then apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a new appearance.
Sash Hardware
The hardware that supports window sashes is prone to wearing out from time and usage and the result could be a window or repair door that can't be opened or closed easily. The good news is that fixing and replacing this hardware is generally relatively easy and affordable. If you're having trouble opening a sash spray some lubricant into the jamb channel. Then, you can slide the sash open to see if that fixes the issue. If not, the problem is likely with the sash balance and you'll need to take out the sash in order to access this hardware.
Sashes for windows should be able to open and close without much effort. However, this could be a challenge if the weights have been worn out or the sash-to rail meeting rail is not properly covered with. This could be caused by many factors that include an absence of maintenance or a mismatched weight rating.
If the hinge arms on the window begin to move, this can cause the sash drag, and then eventually to hit the frame at the opposite corner (Photo 1). To correct the issue make sure the sash is in the proper position within the frame opening and then take it off. If the sash is screwed to the hinge arm, you'll have to unscrew the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Old windows, especially those in older houses, can be difficult to open and close, due to sagging hinges and a general inefficiency. Many times, a few simple fixes can allow these windows to operate smoothly again and help homeowners save money on energy bills.
To complete these repairs to sash it is essential to have all of the tools needed before you begin. Begin by marking the location of the hinge channel on the frame with pencil (Photo 1). This will allow you to put the channel in the proper place when you are finished. Then, remove the sash and take off the hardware including the parting beads (Photo 2) and the chains or cords that hold it in place. The nozzle shield of the heat gun and medium setting will soften any putty that has been hardened. Take off the old sash and keep it in a labeled bag.
Sash Weights
Whether your window repair sash repairs are to replace a broken cord or just to keep the windows functional by replacing worn out weights on sash can improve sash operation and help reduce energy costs. Sash weights are heavy, lead or iron cylinders that are enclosed in a concealed cavity and linked to the moveable the sash with rope. These weights act as counterbalances, which allows you to open and shut the window without having to use mechanical or electrical devices. The sash weights are often neglected or ignored by homeowners and turned into scrap when they break; therefore you may have to search for replacements.
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 require a fresh piece of string, a length of sashcord and a few sashpulleys to secure the weights you are replacing to the cord.
Older wood windows are joined by mortise and tenon joints. The wood pegs holding the parts together can be removed with pin punches and hammers. The majority of these pegs are large on one side and smaller on the other. It is crucial to first remove the smaller diameter sides. Sashes that were made later in the century used glue instead of pegs and can be separated by cutting through the glue line using the help of a knife, and then tapping the mortised section loose with a mallet.
After the sash is released, you can remove the stops on the sash and get access to the weight pockets. This is usually done via an opening in the bottom of each jamb. This hole is covered with the wooden panel which can be removed to reveal the interior workings.
When the sash has been shut off and the access panel is removed, you can take off the weight that was previously installed and replace it. Make sure you weigh the sash before you begin, as the weights that were previously used may be a different size than what you require. Once the new weight is installed, run the string through the sash pulling mechanism. Then attach the string to the boxed frame, but leave a few inches of string hanging from the head to allow for future adjustments.
Sash Cords
Most double glazed repairs-hung windows of the past have a cord or chain connected to the weights that helps keep the sashes level in the jamb. Over time, these chains may become damaged and make it difficult to raise windows. A new sash cord will restore the ability to move the sash up and down and keep it in place when opened.
The first step in replacing cords for sash is to locate and take out the access panels located in the jambs. These are usually nailed or screwed in and will need to be removed or relocated. You may be able to use a hammer or chisel to remove them however, it is always best to lay down dust sheets before beginning any work.
After removing the access panel, you can begin to work on the sash. Use a flat bar or chisel, to pry the small parting beads from their grooves. They are usually wedged in or nailed but can be snipped out and it's worth your time. If the sash is still in place, break the mortise and tenon joints with a hammer and pin punch or screwdriver, then remove the wood pegs that are on the components. The sash should move freely, however it may require some lubrication in order to feel less stiff.
Determine the length of sash chain/sash cord needed to reach the sash slot at the bottom, and the pulley at the top of the jamb. Cut the cord or chain and secure it as in the previous step. You can use a hammer and screws or nails, but nails are less likely to cause damage.
If you haven't purchased an upgrade kit to replace the counterbalance system that was in place before, it's best to keep the original weights for balancing in place. It's not expensive to buy them from architectural salvage stores and they'll be simple to install once you have the sash opened. Based on the size of your window two or three sash weights could be needed to keep it open.