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Window Sash Repairs
Window sashes must be checked regularly for mold, mildew and damage. By catching problems before they become serious, you can save money on repairs in the future.
The sash is the internal framing that can be moved vertically up or down in windows that are open. This article will teach you how to perform simple sash repairs.
Weather Stripping
Wood window sashes give a classic aesthetic to your home. When properly maintained, they will last for years. However, they may become damaged or degrade in time because of exposure to the elements and wear and wear and tear. Fortunately, sash repair specialists can bring your windows back to their original condition and maintain their appearance for a longer period of time than replacement windows.
The first step in repair sash window damage is to fix weather stripping, which can be found on both the sash as well as the frame. If it's worn or loose, out, it can cause drafts and other issues. 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). Then, remove the sash and mark its width and height, so you can find replacement weather stripping to match.
Then, remove the sash and place it on a surface to allow access to all four sides. If the sash is double glazed window repairs-hung, you'll have to remove the weights as well as the ropes that go with them that should have fallen into the pocket that was intended to be in the jamb liner. After removing the sash using the utility knife, you can remove the weather stripping from the old sash by hand or using the putty blade.
After the sash has been cleared 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 can also replace them with scrap wood.
After removing the parting stop and trimming it to length and then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty tool, and allow it to dry for at least a day. Once the putty has fully cure and dried, you can apply a topcoat of acrylic latex. This will protect the putty and give your sash a new look.
Sash Hardware
The hardware that supports windows sashes can become worn out over time and use. This could lead to the window or door that is difficult to open or close. The good news is that fixing and replacing this hardware is typically quite simple and inexpensive. If you are having trouble opening the sash, spray some lubricant into the jamb channel. Then slide the sash out to see if that fixes the issue. If not, the issue is most likely due to the balance of the sash and you'll need to take out the sash to gain access to this hardware.
Ideally, window sashes should swing open and closed without effort, but this can be difficult when the weights wear out or if the sash that joins rail isn't properly glazed. This issue could be caused by a variety of reasons, such as insufficient maintenance or an incorrect weight rating for a particular window sash.
If the hinge arms on the window begin to move, this can cause the sash drag and then hit the frame in the opposite corner (Photo 1). To remedy the issue ensure that the sash is aligned in the frame opening, and then remove it. If the sash is secured to the hinge arm, you'll need to unscrew the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Due to sagging hinges, and a general lack in energy efficiency, old windows particularly those in older houses, could be difficult to open or close. In most instances, a few minor repairs can turn these windows into smooth operators and save homeowners cash on energy costs.
To complete these repairs to sash, it's important to have all of the necessary tools lined up before you begin. Begin by marking the position of the hinge channel on the frame using pencil (Photo 1). This will help you to place the channel in the proper position after you've finished. Remove the sash, and remove all the hardware, including the beads for parting, cords, and chains that keep the sash in place. Soften any putty that has been hardened with a heat gun set to medium and equipped with an nozzle shield. Remove the old sash and put it in a bag with a label.
Sash Weights
Sash weights are able to be replaced to improve the performance of your window sash and decrease the energy cost. Sash weights consist of heavy iron or lead cylinders that are encased inside a concealed cavity, and attached by a rope to the movable window sash. They are counterbalancers which allows the window to be shut and opened without using mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and then turned into scrap when they fail. Consequently you may have to find replacements.
A sash weight that has fallen out of the cavity is difficult to get back and you'll need to find a replacement that fits properly. You will also require a fresh piece of string, a length sashcord and a few sashpulleys for tying the weights you are replacing to the cord.
Older wood windows are joined with mortise and tenon joints. The wood pegs that keep the parts together can be removed by pin punches and hammers. The majority of these pegs are big on one side and smaller on the other. It is essential to first remove 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 with the help of a knife, and then tapping the mortised section loose using mallets.
Once the sash has been removed, you can take off the sash stops and access the pockets for weights. This is usually done via a small hole in the bottom of each jamb. The hole is then covered with a wooden panel that can be removed to reveal the interior workings.
After the sash has been stopped and the access panel removed, you will be able to remove the weight of the old sash and replace it with new. Weigh the sash first because the weights you have may not be the right size. After the new weight is installed, tie a string to it and then thread it through the pulley of the sash. Then, attach the string to your boxed frame. Leave a few inches at the head of the string to allow for future adjustments.
Sash Cords
In the majority of double-hung windows, a cord or chain is affixed to the weights. This keeps the sashes of the jamb balanced. Over time these cords can break, making it difficult to raise the window. A new sash cable will restore the ability to raise and lower the sash, and ensure it stays in place when opened.
To replace sash cords, the first step is to remove the access panels from the jambs. They are usually screwed or nailed in and require removal. You may be able to use a hammer and chisel for removing them, but it's always better to lay down dust sheets prior to commencing any work.
After the access panel has been removed, you can start working on the sash. Make the small parting beads (also known as "tie rails") out of their grooves with a chisel or flat bar. They are typically wedged into or nailed but can be prised free and it's worth your time here. If the sash is still in place, pry out the mortise and tenon joints with pin punch and hammer or screwdriver, then unhook the wood pegs attached to the components. You should be able to move the sash around freely, although it will probably need some lubrication if it feels stiff.
With the sash in an open position With the sash in an open position, measure the sash chain or cord to extend from the pulley at the top of the jamb to the sash slot in the bottom. Cut the cord/chain, and then secure it in the step 6 above. You can use either a hammer, nails, or screws. However, nails are less likely than screws to cause damage.
If you haven't purchased a kit that replaces the old counterbalance system it's recommended to keep the original weights for balancing in place. It's not expensive to buy these from salvage shops for architectural purposes and they'll be simple to install once you've got the sash opened. Based on the size of your window two or three sash weights could be needed to keep it in an open position.