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Window Sash Repairs
Window sashes must 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 get out of hand.
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 will last for many years when they are maintained properly. They may, however, become damaged or degraded with time due to exposure and normal wear. Sash repair experts can restore windows to their original state and maintain their beauty longer than replacement windows.
Weather stripping is the first thing to address when repairing windows that have sash. It's located on both the frame and the sash. It can cause drafts if it's worn out or loose. To fix it, start by finding your window brand and the date on which the glass was manufactured (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 find a replacement weather stripping that matches.
Then, take it off and set it on a table to allow access to all four sides. If the sash is double-hung, you'll also need to remove the weights and their ropes, which should have fallen into the pocket of the jamb liner. Once you've taken the sash off and the weights, use a utility knife to cut off the weather stripping that was formerly in place at the corners. Then, take it off by hand or using a putty knife.
After the sash has been cleared and clean, you can put in the parting stops. These are long pieces that split the sashes. Pam prefers standard 1/2-inch by 3/4-inch window trimming from the lumberyard. But, you can also substitute with a scrap piece of wood.
After removing the stopper and cutting it to length, apply a thin coat of glazing compound on the bottom of the sash. Smooth the compound with your putty tool and let it dry at least a day. After the putty has completely cured it is possible to apply an acrylic latex topcoat. This coating will protect the putty and give your sash a fresh look.
Sash Hardware
The hardware that holds window sashes is susceptible to wear and tear from age and use, and the result can be a door or window that can't be opened or closed easily. It's important to know that replacing or repairing this hardware is often simple and inexpensive. If you're having trouble opening a sash, spray some lubricant into the jamb channel. Then, you can slide the sash up and open to see if it resolves the problem. If not, the issue is likely with the balance of the sash and you'll need to remove the sash to access the hardware.
Ideally, window sashes must swing open and closed with very little effort, but this can be difficult when the weights are worn or if the sash that joins rail isn't properly coated. This could be caused by a variety of factors such as a lack of maintenance and a mismatched weight rating.
If the hinge arms of a window begin to lose their elasticity, this could cause the sash's to drag and eventually hit the frame in the corner in the opposite direction of the hinge arm (Photo 1). To correct the issue ensure that the sash is in the proper position within the frame opening and then remove it. If the sash is screwed onto the hinge arm, take it off the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).
Old windows, especially those in older houses, can be difficult to open and close, because of sagging hinges and a general lack of energy efficiency. Many times it is a matter of making a few minor adjustments that can help these windows function smoothly again and save homeowners money on energy costs.
In order to make these sash repairs it is important to have all the necessary tools lined up before you begin. Mark the location of the hinge channel on the frame (Photo 1) using pencil. This will assist you in getting the channel back in the correct position after you've finished. Then, remove upvc windows repair and remove 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 a medium setting will soften any hardened glue. Take off the old sash and put it in a bag with a label.
Sash Weights
Sash weights are able to be replaced to improve the operation of your window sash, and also reduce the energy cost. Sash weights consist of heavy lead or iron cylinders that are encased in a hidden cavity and are connected via a rope to the movable window sash. These weights act as counterbalances and allow you to open and close the window without requiring mechanical or electrical devices. If they fail, sashweights are usually neglected or not used by homeowners.
A sash weight that has fallen out of the cavity is difficult to recover and you'll need to locate a new one that fits properly. You will also require a fresh piece of string, a length of sashcord and some sashpulleys to tie the new weights to the cord.
Older wood windows are joined with mortise and tenon joints. The wood pegs that hold the parts together can be removed with a pin punch and hammer. The majority of these pegs are big 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. They can be separated by cutting the glue line with a knife, then tapping the mortised area loose using a mallet.
Once the sash has been released, you can remove the sash stops and gain access to the weight pockets. This is usually done via a small hole in the bottom of each jamb. This hole is covered with the wooden panel which can be removed to reveal the inner workings.
After the sash has been stopped and the access panel is removed, you can remove the weight that was previously installed and replace it. Be sure to weigh the sash prior to you do this, since the old weights may be different sizes than the one you need. Once the new weight is in place, tie a string to it and thread it through the pulley of the sash. Then, this guy can attach the string to your boxed frame. Leave a few inches protruding at the top of the string for future adjustments.
Sash Cords
The majority of double-hung windows with a history have a cord or chain attached to the weights which keeps the sashes level within the jamb. As time passes, these cords may break, making it difficult to raise the window. A new sash cord will restore the ability to move the sash up and down and keep it in position when it is opened.
The first step to replace sash cords is to locate and take out the access panels located in the jambs. They are typically screwed or nailed in and require removal. You may be able to use a hammer or chisel to prise them off but it's best to lay down dust sheets prior to commencing any work.
After removing the access panel, you are able to begin working on the sash. Take the narrow beads (also known as "tie rails") out of their grooves using a chisel or flat bar. It's important to take your time, as these are often placed in a wedge or nail. If the sash remains in place, pull the mortise-and tenon joints with a screwdriver or hammer and then remove each wood peg. You should now be able to move the sash back and forth without difficulty, though it may require oil if it feels stiff.
Determine the length of sash cord/chain required to reach the sash slot on the bottom of the pulley at the top of the jamb. Cut the cord/chain and fix it using the step 6 above. You can either employ a hammer and nail or screws, but nails are less likely to cause damage.
Unless you've bought an upgrade kit to replace the counterbalance system that was in place before, it's best to keep the original balancing weights in place. It's not expensive to buy these from salvage shops for architectural purposes and they'll be easy to install once you've got the sash opened. Based on the dimensions and shape of your window, you might need to install one or two sashweights to keep the sash open.