Sashes for windows must be inspected regularly for signs of mold, mildew, and damage. If you catch these issues early you can save money on future repairs.
The sash is an interior frame that can move vertically up and down in windows that open. This article will show you how to perform several simple repairs to the sash.
Weather Stripping
Wooden window sashes can give an elegant appearance to your home. They are also durable and can last many years provided they are properly maintained. However, they can be damaged or degraded as time passes due to exposure to the elements and wear and wear and tear. Fortunately, sash repair specialists can restore your windows to their original condition and maintain their appearance for much longer than newer replacement windows.
The first step in sash window repair s is addressing weather stripping, which is found on both the sash as well as the frame. It can cause drafts if damaged or is loose. Start by identifying the brand of window and the manufacturer's date (etched on the glass's corner or the aluminum spacers between panes). Remove the sash and mark its width and height so you can get replacement weather stripping that matches.
Then, remove the sash from its holder, and place it on an even surface that allows you to see all four sides. If the sash is double-hung, you'll also need to take off the weights and the ropes that go with them that should have fallen into the pocket of the jamb liner. Once you've removed the sash, use a utility knife to remove the old weather stripping at the corners, then remove it manually or using a putty knife.
After the sash has been cleaned, you can replace the parting stops. These are long pieces that separate the sashes. Pam prefers to use the standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. But, you can also use with a scrap piece of wood.
After removing the parting stop and cutting it to length, apply a thin coat of glazing compound to the bottom of the sash. Smooth the compound with your putty knife, and let it dry for at least one day. Once it's fully cured then apply a top coat of acrylic latex paint. This will protect the putty, and give your sash an updated look.
Sash Hardware
The hardware that holds the window sashes can wear out over time and with use. This could lead to the window or door that is difficult to open or close. It's important to know that replacing and repairing this hardware is often simple and inexpensive. If you're having difficulty opening the sash, spray some oil into the jamb channel. Then, slide the sash out to see if it resolves the issue. If the issue persists it's likely the sash balance. It is necessary remove the window sash in order to get access to this part of the hardware.
Ideally, window sashes should swing open and closed with minimal effort but this can be a difficult task when the weights are worn or if the sash's meeting rail isn't properly glazed. This could be caused by various reasons such as the lack of maintenance or a mismatched weight rating.
If the hinge arms of a window are beginning to slide, this could cause the sash's to drag and eventually land on the frame in the corner in the opposite direction of the hinge arm (Photo 1). To address this problem, first ensure that the sash fits squarely in the opening of the frame and then take it out of the window. If the sash is secured to the hinge arm, you'll have to loosen the hinge arm and replace it (Photo 2). Next, install the new sash (Photo 3).
Because of sagging hinges and a general lack of energy efficiency, old windows especially in older homes, can be difficult to open and close. In most cases, a few simple repairs can transform these windows into smooth operation again and save the homeowner money on energy bills.
It is crucial 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 allow you to place the channel in the right location after you've completed. Then, remove the sash and remove the hardware including the parting beads (Photo 2) and the cords or chains which hold it in place. Soften any putty that has been hardened with a heat gun set to medium and fitted with a nozzle shield. Remove the old sash and keep it in a bag with a label.
Sash Weights
Sash weights can be replaced to improve the performance of your window sash and decrease the cost of energy. Sash weights are heavy, lead or iron cylinders, which are enclosed inside a hidden compartment and linked to the moveable the sash with rope. These weights act as counterbalances, which allows you to open and shut the window without having to use mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and then turned into scrap when they fail. Consequently, you may need to find replacements.
A weight in a sash that has fallen out of the cavity is difficult to retrieve, so you will want to find a new one that fits properly. You will also require a new piece of string, a length of the sash cord, as well as some sash pulleys that will tie the new sash weights onto the sash cord.
Older wood windows are joined using mortise and tenon joints. The wood pegs that hold the parts together can be removed using the use of a pin punch and hammer. Most of these pegs have a large diameter on one side and a smaller size on the other side, so it is important to remove the smaller-diameter sides first. Later sashes utilized glue instead of pins. They can be separated by using a knife or a mallet.
After the sash has been removed, you can remove the sash stop and access the weight pocket. This is usually done through a small hole at the bottom of each jamb. This hole is covered with a wooden panel that can be removed to reveal the inside workings.
Once the sash is stopped and the access panel is removed, you can take off the weight you used and replace it. Make sure you weigh the sash prior to you do this, since the old weights could be different sizes than the one you need. Once the new weight is installed then tie a string to it and then thread it through the pulley for the sash. Then, attach the string to the boxed frame. Leave a few inches at the end of the string for future adjustments.
Sash Cords
Most old double-hung windows come with a chain or cord attached to the weights that keeps the sashes in balance in the jamb. As time passes, these cords may become damaged and make it difficult to raise windows. A new sash cord will restore the ability to move the sash upwards and downwards and will keep it in its place when it is opened.
The first step to replace sash cords is to find and remove the access panels in the jambs. They are usually installed by screws or nails and must be removed or repositioned. You might be able to use a hammer and chisel for removing them 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. Utilize a flat bar, or chisel to pry the small parting beads out of their grooves. These are often wedged in or nailed but can be prised free which is why it's worth your time. If the sash is still in place, pull the mortise-and tenon joints using a hammer or screwdriver and then take out each wood peg. It should now be possible to move the sash back and forth freely, though it will probably need some oil if it feels stiff.
Measure the length of sash chain/sash cord needed to reach the sash slot at the bottom, and the pulley located at the top of the jamb. Cut the chain or cord and secure it as in Step 6 above. You can either use a hammer and screws or nails, but nails are less likely to cause damage.
Unless you've bought an item that replaces the old counterbalance system, it's recommended to keep the original balancing weights in place. They are not expensive and are easy to install if you purchase them at architectural salvage stores. Based on the size of your window, two or three sash weights could be needed to keep it open.
