Window Sash Repairs
Window sashes need to be checked regularly for mold, mildew and damage. If you catch these issues early you can save money on repairs in the future.
The sash is an internal frame that moves upwards and downwards in windows that open. This article will teach you how to perform simple repairs to sash.
Weather Stripping
Wooden window sashes can add an elegant appearance to your home. They are also durable and can last many years provided they are properly maintained. However, they may become damaged or deteriorate over time due to exposure to elements and normal wear and wear and tear. Sash repair experts can restore windows back to their original condition and keep them looking great longer than replacement windows.
Weather stripping is the primary aspect to consider when you are repairing windows that have sash. It's located on both the frame and the sash. It can cause drafts if worn out or loose. To fix it, begin by determining the brand of your window and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Remove the sash, and mark its width and height so you can get new weather stripping that is compatible with the original.
Next, remove the sash and place it on a work surface so you can access all four sides. If your sash was double-hung, take out the ropes and weights that should fall into the pocket in the jamb lining. After you've removed the sash using a utility knife, you can use it to cut away the old weather stripping at the corners. Then, take it off by hand or using a putty blade.
After the sash has been cleared and clean, you can put in the parting stops. These are long pieces wood that separate the two sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can substitute a scrap piece of wood.
After removing the stopper and trimming it to length and then apply a thin layer of glazing compound on the bottom of the sash. Smooth it out using your putty knife and let it dry for at least a day. When the putty is fully cured it is possible to apply a topcoat of acrylic latex. This will protect the putty and give your sash a new look.
Sash Hardware
The hardware that holds the windows sashes can become worn out over time and use. This can result in windows or doors that is difficult to open or close. It's important to know that replacing and repair of this hardware is typically straightforward and cost-effective. If a sash becomes difficult to operate you can try spraying some grease into the jamb channel then slide it open to see if that fixes the problem. If not, the problem is likely with the sash balance, and you'll need to remove the sash to gain access to this hardware.
Ideally, window sashes should move open and shut without effort, but this can be a difficult task when the weights wear out or if the sash that joins rail isn't properly glazed. This issue can be caused by a variety of factors, including insufficient maintenance or a mismatched weight rating for a particular window sash.
If the hinge arms of a window are starting to lose their elasticity, this could cause the sash to slide and eventually land on the frame in the corner that's opposite the hinge arm (Photo 1). To fix this problem, first ensure that the sash fits squarely in the frame's opening and then take it out of the window. If the sash has been screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).
Windows that are old, especially in older homes, may be difficult to open and close, due to sagging hinges and an overall lack of energy efficiency. In most cases, a few simple repairs can turn these windows into smooth operation for the first time and save the homeowner cash on energy costs.
To complete these repairs to the sash it is important to have all of the necessary tools lined up before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will help you get the channel back into position correctly after you've completed. Remove the sash and remove the hardware including the beads that separate (Photo 2) and the cords or chains which hold it in place. window repairs with nozzle shield and medium setting will soften any hardened glue. Take off the old sash and store it in an bag that is labeled.
Sash Weights
If your window sash repairs are to replace a broken cord or to keep the windows functional, replacing worn out sash weights will improve sash operation and cut down on the energy cost. Sash weights are heavy, lead or iron cylinders enclosed inside a hidden compartment and linked to the moveable window sash using rope. These weights function as counterbalances, allowing you to open and close the window without having to use mechanical or electrical devices. When they fail, sashweights are often ignored or disabled by homeowners.
A sash weight that has fallen out of the cavity is difficult to retrieve and you'll need to find a new one that fits correctly. You will also require a new piece string, a length sashcord and some sashpulleys to tie the new weights to the cord.
Mortise and Tenon joints can be used to join older wood windows. Hammers and pins can be used to remove the wood pegs that hold the components together. The majority of them are large on one side, but smaller on the other. It is crucial to remove first the smaller diameter sides. Sashes made later in the century made use of glue instead of pegs. They can be separated by cutting the glue line using an instrument, and then tapping the mortised part loose using a mallet.
After the sash has been removed then you can take out the sash stop and gain access to the weight pocket. Usually this is accomplished by drilling an opening in the bottom of each jamb. This hole is covered by an access panel of wood that can be cut off to allow you to view the inside of the frame.
After you have the sash stopped and the access panel removed, you will be able to remove the weight from the sash and replace it with the new. Weigh the sash first to ensure that the weights you have might not be the right size. After the new weight is installed, tie a string to it and then thread it through the sash pulley. Then attach the string to the boxed frame, but only leave a few inches of string sticking out from the head for future adjustment.
Sash Cords
In the majority of double-hung windows the chain or cord is connected to the weights. This helps keep the sashes within the jamb balanced. As time passes, these cords may break, making it impossible to raise the window. A new sash cable can restore the ability to raise and lower the sash, and keep it in position when opened.
To replace sash cords, the first step is to remove the access panels from the jambs. They are typically screwed or nailed into and require removal. It may be possible to remove them using an axe or hammer, but it is always better to lay out dust sheets prior to beginning any work.
After the access panel has been removed, you can begin working on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves using a chisel or flat bar. They are typically wedged into or nailed but can be snipped out which is why it's worth your time. If the sash remains in place, break 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 need some lubrication in order to feel less stiff.
Take a measurement of the length of the sash chain or sash cord needed to reach the sash slot at the bottom of the pulley located at the top of the jamb. Cut the cord or chain and secure it as in 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 have purchased a kit to replace the counterbalance. They're not expensive and easy to install if you buy them from salvage shops for architectural use. Depending on the size of your window, two or three sash weights may be needed to keep it in an open position.