Window Sash Repairs 101 Your Ultimate Guide For Beginners
Window Sash Repairs
Make sure to check the sashes of your windows regularly for signs of damage, mildew and mold. You can save future repair costs by catching the issues early, before they get out of hand.
The sash is an interior framing that can be moved vertically up or down in windows that are open. This article will teach you how to perform simple repairs to sash.
Weather Stripping
Wooden window sashes can give an elegant appearance to your home. They are also durable and will last for many years when they are maintained properly. They can, however, become damaged or degraded with time due to exposure or normal wear and tear. Sash repair specialists can restore windows to their original condition and maintain their appearance much longer than replacement windows.
The first step in repair sash windows is to address 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. To fix it, begin by finding your window brand and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its height and width so that you can locate new weather stripping that matches.
Then, you can remove the sash from its holder and place it on a flat surface to allow you to see all four sides. If your sash has been double-hung, remove the weights with their ropes that should be buried in the jamb lining. After you've removed the sash, use a utility knife to remove the weather stripping that was formerly in place at the corners, and then remove it manually or using a putty knife.
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. But, you can substitute a scrap piece of wood.
After removing the stoppers for parting and cutting them to the desired length and thickness, apply a thin layer of glazing compound to the bottom of the sash. Smooth it out using your putty knife, and then let it dry for at least a day. When it's completely dried then apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a fresh look.
Sash Hardware
The hardware that supports window sashes is susceptible to wear and tear due to age and use and the result could be a window or door that isn't able to open or close easily. It's a good idea to know that replacing and fixing this hardware is usually straightforward and cost-effective. If a sash becomes difficult to operate you can try spraying some oil into the jamb channel, and then slide it open to see if it solves the issue. If the issue persists, it is most likely the sash balance. It is necessary to remove the window sash in order to get access to this part of the hardware.
Ideally, window sashes must swing open and closed with very little effort, however, this can be a difficult task if the weights become worn or if the sash meeting rail isn't properly glazed. This problem could be caused by various reasons, including an absence of maintenance or a mismatched weight rating.
If the hinge arms on a window begin to sag this can cause the sash drag and eventually hit against the frame in the opposite corner (Photo 1). To correct the issue, make sure that the sash is aligned in the frame opening and then take it off. If the sash is secured to the hinge arm, you'll need to unscrew the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Old windows, particularly those in older homes, may be difficult to open and close, because of sagging hinges and a general lack of energy efficiency. In many cases, a few simple fixes can make these windows operate smoothly and save homeowners money on energy bills.
It is crucial to have the tools needed before you start. Mark the location of the hinge channel on the frame (Photo 1) using a pencil. This will make it easier to put the channel in the proper location after you've completed. Then, remove the sash and remove the hardware, including the parting beads (Photo 2) and the chains or cords that secure it. Soften any hardened putty using the help of a heat gun set at medium and equipped with an shield to block the nozzle. 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 damaged cord or simply to ensure that the windows are functional, replacing worn out sash weights will improve sash operation and help reduce energy costs. Sash weights are hefty lead or iron cylinders, which are enclosed in a concealed cavity and linked to the moveable window sash using a rope. These weights provide counterbalance which allows the window to be opened and closed without the need for mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners and turned into scrap when they fail; therefore, you may need to find replacements.
It is difficult to recover the sash-weight that fell from the cavity, so you'll want to find one that fits correctly. You will also require a new piece of string, a length the sash cord, as well as some sash pulleys to connect the new sash weights the sash cord.
Mortise and Tenon joints are used to join older wood windows. Pin punch and hammer can be used to remove the wood pegs holding the parts together. The majority of these pegs are big on one side, and smaller on the other. It is important to first remove the smaller diameter sides. Later sashes made use of glue instead of pins. They can be separated by using a knife and a mallet.
Once the sash has been released, you can remove the sash stops and gain access to the weight pockets. Usually this is accomplished by drilling an opening in the bottom of each jamb. The hole is surrounded by a wooden panel that can be removed to reveal the inside workings.
When the sash has been shut off and the access panel has been removed, you can take off the weight that was previously installed and replace it. Be window repair to weigh the sash before you do this, since the weights that were previously used may be different in size from what you require. After the new weight is installed, run an appropriate length of string through the pulling mechanism. Then attach the string to the frame, but only leave a few inches of string sticking out from the head for future adjustment.
Sash Cords
The majority of double-hung windows with a history have a cord or chain connected to the weights that helps keep the sashes in balance within the jamb. Over time, these cords could break, making it impossible to raise the window. A new sash cable will restore the ability to raise and lower the sash, and keep it in position when it is opened.
The first step to replace sash cords is to locate and remove the access panels within the jambs. These are usually installed by screws or nails and must be removed or moved. It may be possible to remove them using an axe or hammer, however, it is best to lay out dust sheets prior to beginning any work.
After removing the access panel, you are able to begin to work on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves using flat bar or chisel. It is essential to take your time, as these are often wedged or nailed in place. If the sash remains in place, pull the mortise-and-tenon joints out with a hammer or screwdriver, then remove each wood peg. You should be able to move the sash back and forth freely, although it may require lubrication if it feels stiff.
With the sash open With the sash in an open position, measure the sash chain or cord to reach from the pulley in the top of the jamb to the sash slot on the bottom. Cut the cord/chain and then attach it as described in Step 6 above. You can either employ a hammer, screws or nails, but nails are less likely to cause damage.
If you haven't purchased an upgrade kit to replace the counterbalance system that was in place before, it's best to keep the original weights for balancing in place. They are not expensive and simple to install if purchased them at architectural salvage stores. Based on the size and shape of your window you may need to use one or two sashweights to keep the sash open.