Window Sash Repairs
Make sure to check the sashes of your windows regularly for damage, mildew, and mold. You can reduce the cost of repairs in the future by catching problems early on before they become out of control.
The sash is the internal framing that can be moved vertically upwards or downwards in windows that open. This article will show you how to make several simple repairs to sash.
Weather Stripping
Wood window sashes add the classic look to your home and, when properly maintained, they can last for years. However, they can 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 much longer than replacement windows.
Weather stripping is the first aspect to consider when you are repairing windows that have sash. It is located on both the frame and the sash. If it's damaged or worn out, it can lead to drafts and other problems. Begin by identifying the window brand and the date of manufacture for the glass (etched on the glass's corners or on the aluminum spacers between panes). Then, remove the sash and mark its height and width, so you can find the appropriate weather stripping replacement to match.
Then, remove the sash from the holder and place it on a flat surface to allow you to access all four sides. If your 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. After you've removed the sash using a utility knife, you can use it to cut away the weather stripping that was formerly in place at the corners, and then remove it manually or with a putty knife.
Once the sash has been cleared, you can install the stoppers that separate the two sashes. These are long pieces wood that separate the two sashes. Pam prefers the standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. However, you could also use with a scrap piece of wood.
After removing the parting stop and trimming it to length and then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty tool, and allow it to dry for at least a day. When it's completely dried, apply a top coat of acrylic latex paint. This will protect the putty and give your sash a new look.
Sash Hardware
The hardware that holds the windows sashes can become worn out with time and use. This could result in a door or a window that is difficult to open or close. The good news is that fixing and replacing this hardware is generally very simple and cost-effective. If a sash isn't easy to operate you can try spraying some grease into the jamb channel, and then open it to see if this resolves the issue. If the problem persists it's most likely that the sash balance is off. You'll need to remove the window sash to get access to this part of the hardware.
Ideally, window sashes must be able to open and close without effort, but this is a difficult task if the weights become worn or if the sash that joins rail isn't properly coated. This could be caused by a variety of factors, including 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 strike the frame in the corner that's directly opposite the hinge arm (Photo 1). To correct the issue ensure that the sash is in the proper position within the frame opening and then take it off. If the sash is screwed onto the hinge arm, take it off the hinge and replace it. (Photo 2). Then, put in the new sash (Photo 3).
Windows that are old, especially in older houses, can be difficult to close and open because of sagging hinges and general inefficiency. Sometimes just a few easy fixes can make these windows operate smoothly again and help homeowners save money on energy costs.
It is crucial to have the tools you need before you begin. Mark the location of the hinge channel on the frame (Photo 1) using a pencil. This will make it easier to position the channel in the proper location after you've completed. Remove the sash and then remove all hardware including the parting beads cords, chains, and cords that help to hold the sash. Soften any hardened putty using the help of a heat gun set at medium and fitted with a nozzle shield. Remove the old sash, and put it in a bag with a label.
Sash Weights
Whether your window sash repairs are to replace a broken cord or just to keep your windows functioning by replacing worn out sash weights will improve sash operation and help reduce energy costs. Sash weights are heavy, lead or iron cylinders, which are enclosed in a concealed cavity and connected to the movable window sash using rope. These weights act as counterbalances and allow you to open and shut the window without requiring mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and then turned into scrap when they fail; therefore you may have to find replacements.
A weight from a sash that fell out of the cavity is difficult to get back and you'll need to find a replacement that is suitable for the. You will also require a new piece string, a length of sashcord and some sashpulleys to tie the weights you are replacing to the cord.
Older windows made of wood are joined using mortise and tenon joints. The wood pegs holding the parts together can be removed using the use of a pin punch and hammer. Most of these pegs have an enormous diameter on one side and a smaller diameter on the other, so it is crucial to take out the smaller-diameter ones first. Sashes made later in the century made use of glue instead of pegs. They can be separated by cutting through the glue line using an instrument, and then tapping the mortised area loose with a mallet.
After the sash is released, you can remove sash stops and gain access to the weight pockets. Usually, window repair is done through an opening at the bottom of each jamb. The hole is surrounded by a wooden panel that can be removed to reveal the interior workings.
After the sash has been stopped and the access panel removed, you will be able to remove the weight from the sash and replace it with new. First, weigh the sash because the weights you have might not be of the right size. Once the new weight has been installed, run an appropriate length of string through the pulling mechanism. Then, nail the string to your boxed frame. Leave a few inches at the end of the string to allow for future adjustments.
Sash Cords
In most old double-hung window the chain or cord is connected to the weights. This supports and keeps the sashes of the jamb in a balanced manner. Over time, these cords can become damaged and render it impossible to raise windows. A new sash cord will give you the ability to move the sash up and down and keep it in place when opened.
The first step to replace cords for sash is to locate and take out the access panels located in the jambs. They are usually nailed or screwed in and must be removed or moved. It is possible to remove them using a hammer or chisel, but it is always best to lay out dust sheets prior to beginning any work.
After removing the access panel, you can begin working on the sash. Use a flat bar or chisel to pry the tiny parting beads out of their grooves. They are usually wedged in or nailed, but they can be prised free and it's worth your time here. If the sash remains in place, pry the mortise-and-tenon joints out using 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.
Measure the length of sash cord/chain needed to reach the sash slot on the bottom of the pulley at the top of the jamb. Cut the chain or cord and fix it as described in the previous step. You can do this with nail, hammer or screws. However, nails are less likely to cause damage.
Unless you've bought a kit that replaces the counterbalance system that was in place before, it's best to keep the original balancing weights in place. It's not too expensive to purchase them from a salvage store and they'll be easy to install once you have the sash unlocked. Depending on the size and shape of your window, you may need to use one or two sashweights in order to keep the sash open.