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Window Sash Repairs
Window sashes need to be inspected regularly for signs of mold, mildew and damage. You can avoid future repair costs by catching problems early before they become too much.
The sash is an interior frame that is able to move upwards and downwards in windows that open. This article will show you how to make several simple sash repairs.
Weather Stripping
Wooden window sashes can add a classic look to your home. They are also durable and can last many years provided they are properly maintained. However, they can be damaged or degraded over time due to exposure or normal wear. Sash repair experts can restore windows to their original state and maintain their beauty much longer than replacement windows.
The first step in repair sash window damage is to fix weather stripping, which can be found on both the sash and frame. If it’s damaged or worn out, it can lead to drafts and other issues. Begin by identifying the window brand and the manufacturer’s date (etched on the glass’s corners or the aluminum spacers between panes). Remove the sash and mark its width and height so you can find a new weather stripping that is compatible with the original.
Then, take it off and place it on a work surface to allow access to all four sides. If your sash was double glaze repair-hung, take out the ropes and weights that should be buried inside the jamb lining. After removing the sash with the utility knife, remove the old weather stripping by hand or with a putty knife.
Once the sash is clear and clean, you can put in the parting stops. They are long pieces of wood that divide the two sashes. Pam likes to replace them with standard 1/2-inch-by 3/4-inch window trim from the lumberyard, however you can also replace them with a piece of scrap wood.
After removing the stopper for the parting and trimming it to length, apply a thin coat of glazing compound on the bottom of the sash. Smooth out the compound using your putty knife and let it dry for a minimum of a day. After it has fully dried then apply a top coat of acrylic latex paint. This will help protect the putty, and give your sash a modern appearance.
Sash Hardware
The hardware that supports window sashes can wear out over time and use. This can result in the window or door that is difficult to open or close. The good news is that repairing and replacing this hardware is typically relatively easy and affordable. If you’re having difficulty opening the sash, spray some oil into the jamb channel. Then slide the sash up and open to see if that fixes the problem. If not, the problem is likely with the sash balance and you’ll need to take out the sash to access this hardware.
Window sashes should open and close without much effort. However, this can be difficult if weights are worn out or the sash connecting rail isn’t properly glazed. This issue can be due to many factors that include a lack of maintenance and a mismatched weight rating.
If the hinge arms on the window begin to move, this can cause the sash drag and then hit the frame in the opposite corner (Photo 1). To fix the problem ensure that the sash is in the proper position within the frame’s opening and take it off. If the sash has been attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Then, you can install the new sash (Photo 3).
Due to hinges that are sagging, and a general deficiency in energy efficiency, older windows especially in older homes, can be difficult to open or close. In most cases, a few simple repairs can turn these windows into smooth operation and save homeowners cash on energy costs.
To make these repairs to double glazing to the sash it is essential to have all the necessary tools lined up before you begin. Begin by marking the position of the hinge channel on the frame with pencil (Photo 1). This will allow you to position the channel in the right location after you’ve completed. Then, remove the sash, and then remove the hardware including the beads that separate (Photo 2) and the cords or chains that hold it in place. Soften any putty that has been hardened with an electric heat gun set to medium and fitted with a shield for the nozzle. Remove the old sash and put it in a bag with a label.
Sash Weights
Whether your window sash repairs (mypresspage.com) are to replace a damaged cord or to keep the windows functional, replacing worn out weights on sash can improve sash operation and reduce the energy cost. Sash weights are heavy lead or iron cylinders that are enclosed inside a hidden compartment and linked to the moveable window sash using rope. They function as counterbalances and allow you to open and shut the window without having to use mechanical or electrical devices. When they fail, sashweights are usually neglected or not used by homeowners.
It’s not easy to retrieve a sash-weight that has fallen from the cavity, so you’ll need to find one that is suitable for the. You will also require a fresh piece of string, a length of sashcord and a few sashpulleys to secure the new weights to the cord.
Mortise and Tenon joints are used to join old wood windows. The wood pegs that hold the components together can be removed by pin punches and hammers. The majority of them are large on one side and smaller on the other. It is important to remove first the smaller diameter sides. Later sashes utilized glue instead of pins. They can be separated by using a knife and a mallet.
After the sash is released, you can remove sash stops and gain access to the pockets for weights. Usually it is done by drilling an opening at the bottom of each jamb. This hole is covered with an unfinished wooden panel that can be removed to reveal the interior workings.
Once the sash is stopped and the access panel is removed, you can remove the old weight and replace it. Weigh the sash first to ensure that the weights you have may not be the correct size. Once the new weight has been installed, thread a string through the sash pulling mechanism. Then, nail the string to the boxed frame. Leave a few inches at the head of the string to allow for future adjustments.
Sash Cords
Most double glazing windows repairs-hung windows of the past come with a chain or cord attached to the weights which helps keep the sashes balanced within the jamb. Over time these cords can 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.
To replace sash cords the first step is to remove the access panels from the jambs. They are typically nailed or screwed in and will need to be removed or moved. It is possible to remove them with an axe or hammer, however, it is best to lay out dust sheets prior to beginning any work.
After removing the access panel, you can begin to work on the sash. Utilize a flat bar, or chisel, to pry the tiny parting beads from their grooves. It is essential to take your time because they are usually stuck or nailed to the floor. If the sash is in place, break the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then unhook the wood pegs attached to each component. You should be able to move the sash back and forth freely, although it will probably need some oiling if it seems stiff.
Take a measurement of the length of the sash chain or sash cord needed to reach the sash slot at the bottom of the pulley located at the top of the jamb. Cut the chain or cord and secure it as in Step 6 above. You can use either a hammer, nails, or screws. However, nails are less likely than screws to cause damage.
Unless you’ve bought a kit that replaces the old counterbalance system, it’s best to keep the original balancing weights in place. They’re not costly and are easy to install if purchased them from architectural salvage stores. Depending on the size of your window, two or three sash weights could be needed to keep the sash in an open position.