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Window Sash Repairs

Window sashes need to be inspected regularly for signs of mold, mildew and damage. You can save the cost of repairs in the future by catching problems early before they become out of control.

The sash is an interior frame that is able to move vertically up and down in windows that open. This article will show you how to perform simple sash repairs.

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. They can, however, be damaged or degraded over time due to exposure and normal wear. Thankfully, sash repair experts can restore your windows back to their original condition and maintain their appearance for much longer than newer replacement windows.

The first step in upvc repair sash windows is to address weather stripping, which is found on both the sash and frame. If it's loose or worn out, it can cause drafts and other problems. To fix it, begin by determining your window's brand and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Take the sash off and mark its width and height so that you can purchase replacement weather stripping that matches.

Then, remove the sash from its holder, and place it on a flat surface to allow you to reach all four sides. If your sash is double-hung, you'll need to remove the weights and installed the ropes that go with them, which should have fallen into the intended pocket in the jamb liner. After you have removed the sash using the utility knife, you can remove the weather stripping that was left by hand or using a putty knife.

After the sash has been cleared, you can install parting stops. They are long pieces of wood that separate the two sashes. Pam prefers to use the standard 1/2-inch by 3/4-inch window trimming from the lumberyard. However, you could also use with a scrap piece of wood.

After removing the stoppers for parting and trimming them to your desired length, apply a thin layer of glazing compound over the bottom of the sash. Smooth out the compound using your putty knife, and then let it dry for a minimum of a day. Once the putty has fully cured, you can apply a topcoat of acrylic. This will help protect the putty, and give your sash a modern look.

Sash Hardware

The hardware that supports window sashes susceptible to wear and tear from time and usage and the result could be a door or window that can't be opened or closed easily. It's good to know that replacing and repairing this hardware is often simple and inexpensive. If you are having trouble opening a sash, spray some lubricant into the jamb channel. Then, you can slide the sash out to see if it resolves the problem. If not, the problem is most likely due to the sash balance and you'll have to take off the sash to access this hardware.

Window sashes need to be able to open and close with minimal effort. However, this may be difficult if the weights are worn out or the sash connecting rail isn't covered with. This issue could be caused by a number of factors, including lack of maintenance or by the wrong weight rating for a particular sash.

If the hinge arms of a window are beginning to lose their elasticity, this could cause the sash's to drag and eventually land on the frame in the corner that's opposite the hinge arm (Photo 1). To fix the problem, make sure that the sash is centered in the frame opening, and then take it off. If the sash is screwed to the hinge arm, you'll need to remove the hinge arm and replace it (Photo 2). Next, install the new sash (Photo 3).

Windows that are old, especially in older homes, may be difficult to open and close, due to hinges that are sagging and general lack of energy efficiency. Many times, a few simple fixes can make these windows operate smoothly again and save homeowners money on energy costs.

To complete these repairs to the sash, it's important to have all of the tools needed before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will help you to put the channel in the right location after you've completed. Then, remove the sash and remove the hardware including the beads that separate (Photo 2) and the chains or cords that hold it in place. Soften any hardened putty using the help of a heat gun set at medium and equipped with a shield to block the nozzle. Remove the old sash, and keep it in a labeled bag.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or to ensure that the windows are functional by replacing worn out sash weights will improve sash operation and reduce the energy cost. Sash weights are composed of heavy lead or iron cylindricals that are contained inside a concealed cavity, and are connected via ropes to the moveable window sash. They function as counterbalances and allow you to open and shut the window without the need for mechanical or electrical devices. The sash weights are usually disregarded or disabled by homeowners, and are turned into scrap when they fail. Consequently, you may need to search for replacements.

It is difficult to recover the sash-weight that fell from the cavity, so you'll need to find one that is suitable for the. You will also require 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 windows made of wood are joined using mortise and tenon joints. Hammers and pins can be used to take out the wood pegs holding the parts together. The majority of these pegs are large on one side, and smaller on the other. It is essential to first remove the smaller diameter sides. Later sashes utilized glue instead of pins. They can be separated by using a knife or mallets.

After the sash is removed, you can take off the stops on the sash and get access to the pockets for weights. This is typically done by drilling an opening at the bottom of every jamb. The hole is then covered with an access panel made of wood that can be cut off to let you see the inner workings of the frame.

After the sash has been stopped and the access panel has been removed, you are able to remove the weight you used and replace it. Weigh the sash first to ensure that the weights you have might not be the right size. Once the new weight has been installed, you can thread the string through the sash pulling mechanism. Then, nail the string to the boxed frame. Leave a few inches at the end of the string to allow future adjustments.

Sash Cords

The majority of double-hung windows with a history have a cord or chain connected to the weights that keeps the sashes balanced within the jamb. Over time, these cords can become damaged and make it difficult to raise windows. A new sash cable will 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. These are usually installed by screws or nails and must be removed or repositioned. It is possible to remove them using a hammer or chisel, but it is always best to lay out dust sheets prior to beginning 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 flat bar or chisel. It's important to take your time, as these are often wedged or nailed in place. If the sash is still in place, pry out the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then remove the wood pegs on each component. You should be able to move the sash around freely, although it might require lubrication if it feels stiff.

Measure the length of the sash chain or sash cord needed to reach the sash slot at the bottom from the pulley at the top of the jamb. Cut the chain or cord and then secure it in Step 6 above. You can employ a hammer and screws or nails, however 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 balancing weights in place. It's cheap to purchase them from architectural salvage stores and they will be easy to install once you have the sash unlocked. Based on the dimensions and shape of your window, you may require one or two sashweights to keep the sash open.