Window Sash Repairs Window sashes need to be regularly checked 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 interior framing that can be moved vertically upwards or downwards in windows that open. This article will show you how to perform simple sash repairs. Weather Stripping Wood window sashes add a classic aesthetic to your home and, when properly maintained, can last for years. They can, however, become damaged or degraded with time, due to exposure and normal wear and tear. Sash repair experts can restore windows back to their original condition and keep them looking great much longer than replacement windows. The first step in sash window repair s is addressing weather stripping, which is found on both the sash as well as the frame. If it's worn or loose, out, it could cause drafts, as well as other issues. Begin by identifying the brand of window and the manufacturer's date (etched on the glass's corners or the aluminum spacers between panes). Then, remove the sash and mark its height and width to find the appropriate weather stripping replacement to match. Next, remove the sash and place it on a work surface to allow access to all four sides. If your sash has been double-hung, take out the ropes and weights that should fall into the pocket in the jamb lining. After you've removed the sash and the weights, use a utility knife to cut away the weather stripping that was formerly in place at the corners, and then remove it manually or using a putty blade. After the sash has been cleared, you can replace the parting stops. These are long pieces that divide the sashes. Pam likes to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can also use a piece of scrap wood. After removing the stoppers for parting and trimming 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, then let it dry for at least a few days. Once the putty has fully cured, you can apply a topcoat of acrylic. This coating will protect the putty and give your sash a new appearance. Sash Hardware The hardware that supports window sashes susceptible to wear and tear from age and use, and the result can be a door or window that won't open or close easily. The good news is that fixing and replacing this hardware is generally quite simple and inexpensive. If you're having difficulty opening the sash, spray some oil into the jamb channel. Then, slide the sash open to see if this resolves the problem. If the issue continues it's likely to be due to the sash's balance. You'll need to remove the window sash to get access to this part of the hardware. The ideal situation is for window sashes to be able to open and close with minimal effort but this can be an issue if the weights become worn or if the sash that joins rail isn't properly coated. This issue could be caused by a variety of reasons, such as lack of maintenance or by a mismatched weight rating for the specific sash. If the hinge arms of a window are beginning to slide, this could cause the sash to slide and eventually hit the frame in the corner in the opposite direction of the hinge arm (Photo 1). To address this issue, first make sure the sash is firmly seated in the opening of the frame and then remove it from the window. If the sash is screwed onto the hinge arm, take it off the hinge and replace it. (Photo 2). Install the new sash (Photo 3). Due to hinges that are sagging, and a general lack in energy efficiency, old windows especially in older houses, could be difficult to open or close. In most cases, a few simple repairs can turn these windows into smooth operators and save homeowners cash on energy costs. To complete these repairs to the sash it is essential to have all the tools needed before you begin. Mark the location of the hinge channel on the frame (Photo 1) with pencil. This will help you to put the channel in the correct position after you've finished. Remove the sash and then remove all hardware, including the parting beads cords, chains, and cords that hold the sash in place. A hot gun with nozzle shield and a medium setting will soften any hardened glue. Remove the old sash, and put it in a bag with a label. Sash Weights Sash weights can be replaced to improve the performance of your window sash and decrease the cost of energy. Sash weights are hefty lead or iron cylinders enclosed in a concealed cavity and attached to the movable window sash using a rope. These weights act as counterbalances, which allows you to open and close the window without having to use mechanical or electrical devices. If they fail, sashweights are usually ignored or disabled by homeowners. A weight from a sash that fell out of the cavity is difficult to get back It is therefore important to locate a new one that fits properly. You will also require a new piece of string, a length sashcord and a few sashpulleys for tying the new weights to the cord. Mortise and Tenon joints are used to join old wood windows. Pin punch and hammer can be used to take out the wood pegs holding the components together. Most of them have a large diameter on one side and a smaller diameter on the other side, so it is crucial to take out the smaller-diameter sides first. Sashes made later in the century made use of glue instead of pegs and can be separated by cutting through the glue line using a knife, then tapping the mortised section loose with mallets. After the sash is released, you can remove the stops on the sash and get access to the weight pockets. This is usually done through a small hole at the bottom of every jamb. This hole is then covered by an access panel made of wood that can be cut off so that you can see the inner workings of the frame. After the sash has been stopped and the access panel removed, you'll be able to remove the weight from the sash and replace it with the new. Be sure to weigh the sash prior to you begin, as the weights that were previously used may be a different size than what you require. After the new weight has been installed, thread an appropriate length of string through the pulling mechanism. Then attach the string to the frame, leaving a few inches of string sticking out from the head for future adjustments. Sash Cords The majority of double-hung windows with a history include a chain or cord connected to the weights that supports and keeps the sashes in balance in the jamb. As time passes, these cords can become damaged and make it difficult to raise the windows. A new sash cable will restore the ability to move and lower the sash and ensure it stays 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 require removal. You might be able to use a hammer and chisel to prise them off but it's best to lay down dust sheets prior to starting any work. Once the access panel is removed, you can start working on the sash. Utilize a flat bar or chisel to pry the tiny parting beads out of their grooves. They are typically wedged into or nailed in, but they can be removed and it's worth your time. If the sash is still in place, pull the mortise-and-tenon joints out with a hammer or screwdriver and then remove each wood peg. You should now be able to move the sash around freely, although it will probably need some oiling if it seems 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 in the top of the jamb to the sash slot on the bottom. Cut the cord or chain and then fix it using Step 6 above. You can use a hammer, nails or screws. However nails are less likely to cause damage. It's best to leave the original weights if you've purchased a kit to replace the counterbalance that was previously installed. It's not expensive to buy them from a salvage store and they'll be easy to install once you have the sash unlocked. Depending on the size and shape of your window you may need to use one or two sashweights to keep the sash open.
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