Window Sash Repairs
Make sure to check the sashes of your windows regularly for any damage, mildew and mold. You can reduce future repair costs by catching problems early, before they become out of control.
The sash is the interior frame that is vertically moved either up or down in windows that open. This article will teach you how to make several easy repairs to your sash.
Weather Stripping
Wooden window sashes can give a classic look to your home. They are also durable and will last for many years provided they are properly maintained. They can, however, be damaged or degraded over time due to exposure and normal wear. Sash repair specialists can restore windows back to their original condition and maintain their beauty longer than replacement windows.
The first step for sash window repairs is addressing weather stripping, which is found on both the sash and frame. If it's worn or loose, out, it can lead to drafts, as well as other issues. To fix it, begin by determining your window's brand and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Then, take the sash off and mark its width and height so that you can locate the appropriate weather stripping replacement to match.
Next, remove the sash and set it on a table to allow access to all four sides. If your sash has been double-hung, remove the weights using their ropes that should be buried within the jamb lining. Once you've removed the sash using a utility knife, you can use it to cut off the old weather stripping at the corners, and then remove it manually or with a putty knife.
After the sash is cleared, you can replace parting stops. These are long pieces that separate the sashes. Pam prefers the standard 1/2-inch by 3/4 inch window trimming from the lumberyard. However, you could substitute a scrap piece of wood.
After removing the parting stop and cutting it to length after which, apply a thin layer of glazing compound over the bottom of the sash. Smooth it out using your putty knife, then let it dry for at least a few days. After the putty has completely cure it is possible to apply a topcoat of acrylic latex. This will protect the putty and give your sash a modern look.
Sash Hardware
The hardware that supports the windows sashes can become worn out with time and use. This can result in windows or doors that is difficult to open or close. It's a good idea to know that replacing or fixing this hardware is usually easy and affordable. If a sash becomes difficult to operate, try spraying some lubrication into the jamb channel and then slide it open to see if it solves the issue. If the issue persists it's likely to be due to the sash's balance. You will need to remove the window sash to access the hardware.
Ideally, window sashes must move open and shut with very little effort, but this can be difficult when the weights are worn or if the sash's meeting rail isn't properly glazed. This can be due to various reasons such as the lack of maintenance or an unmatched weight rating.
If the hinges on windows begin to slide, this can cause the sash drag and eventually hit against the frame at the opposite corner (Photo 1). To fix this problem, first ensure that the sash is squarely inserted into the opening of the frame and then remove it from the window. If the sash is screwed onto the hinge arm, remove the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).
Because of sagging hinges and a general lack in energy efficiency, windows that are old especially in older houses, could be difficult to open and close. In many cases, a few simple repairs can transform these windows into smooth operators again and save the homeowner money on energy costs.
It is important to have the tools you need before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will assist you in getting the channel back into the correct position after you've finished. Take the sash off and take out all the hardware, including the beads for parting cords, chains, and cords that hold the sash in place. Soften any hardened putty with an electric heat gun set to medium and fitted with an shield for the nozzle. Take off the old sash and place it in a bag that is labeled.
Sash Weights
Whether your window sash repairs are to replace a broken cord or to keep your windows functioning, replacing worn out weights on sash can improve sash operation and cut down on energy consumption. Sash weights are composed of heavy lead or iron cylinders that are enclosed in a concealed cavity and connected by a rope to the movable window sash. These weights act as counterbalances and allow you to open and shut the window without requiring mechanical or electrical devices. If they fail, sashweights tend to be neglected or not used by homeowners.
A weight from a sash that fell out of the cavity is difficult to recover It is therefore important to find a replacement that fits properly. You will also require a fresh piece of string, a length sashcord and some sashpulleys to tie the new weights to the cord.
Mortise and Tenon joints are used to join old wood windows. The wood pegs holding the parts together can be removed using the use of a pin punch and hammer. The majority of them have an enormous diameter on one side and a smaller diameter on the other, which is why it is important to remove the smaller-diameter ones first. Later sashes utilized glue instead of pins. They can be cut by using a knife or a mallet.
Once the sash has been released, you can remove the sash stops and gain access to the pockets for weights. This is typically done by drilling a small hole at the bottom of every jamb. The hole is then covered with an access panel of wood that can be ripped off to let you observe the inner workings of the frame.
Once the sash is 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 first because the weights you've got may not be of the right size. After the new weight is in place then tie a string to it and then thread it through the pulley of the sash. Then, nail the string to your boxed frame. Leave a few inches protruding at the end of the string to allow for future adjustments.
Sash Cords
The majority of double-hung windows with a history have a cord or chain connected to the weights that supports and 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 can restore the ability to move the sash up and down and hold it in position when it is 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 must be removed. You might be able to use a hammer and chisel to remove them, but it's always better to lay down dust sheets before commencing any work.
After you have removed the access panel, you can begin working on the sash. Utilize a flat bar or chisel to pry the tiny parting beads from their grooves. These are often wedged in or nailed, but they can be snipped out and it's worth your time. If the sash is in place, remove the mortise and tenon joints using pin punch and hammer or screwdriver, then unhook the wood pegs that are on each component. The sash should be able move freely now, but it may require some lubrication to make it feel less 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/chain and then fix it as described in the previous step. You can use either a hammer, nails or screws. However, nails are less likely to cause damage.
It is best to keep the original weights if you have purchased a kit that will replace the old counterbalance. It's not too expensive to purchase them from architectural salvage stores and they will be easy to install once you've got the sash unlocked. Based on the dimensions and shape of your window, you may need to use one or two sashweights in order to keep the sash open.