Window Sash Repairs
Sashes for windows must be regularly checked for mold, mildew and damage. If you catch these issues early you can save money on future repairs.
The sash is an internal frame that moves upwards and downwards in windows that are open. This article will show you how to perform simple repairs to sash.
Weather Stripping
Wood window sashes provide the classic look to your home. If properly maintained, they can last for many years. They may, however, be damaged or degraded over time due to exposure or normal wear and tear. However, sash repair experts can restore your windows to their original condition and maintain their appearance for a longer period of time than replacement windows.
The first step for repair sash window damage is to fix weather stripping, which can be found on both the sash as well as the frame. If it's loose or worn out, it can cause drafts and other issues. To fix it, begin by finding your window brand and glass manufacturer date (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 you can find new weather stripping that matches.
Next, remove the sash and place it on a surface so you can access all four sides. If your sash has been double-hung, take out the weights using their ropes that should be buried in the jamb lining. Once you've removed the sash and the weights, use a utility knife to cut off the weather stripping from the corners. Then, take it off by hand or using a putty blade.
Once the sash has been cleaned, you can replace the stoppers that separate the two sashes. These are long pieces that divide the sashes. Pam likes to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can also use a piece of scrap wood.
After removing the stopper for the parting and cutting it to length after which, apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound using your putty tool and allow it to dry for at least a day. After it has fully dried then apply a top coat of acrylic latex paint. This will protect the putty and give your sash a new appearance.
Sash Hardware
The hardware that supports the window sashes can wear out over time and with use. This could result in a door or a window that is difficult to open or close. It's good to know that replacing or fixing this hardware is usually straightforward and cost-effective. If a sash is difficult to operate you can try spraying some oil into the jamb channel then slide it open to see if it solves the issue. If the issue continues it's likely to be due to the sash's balance. It is necessary to remove the window sash to get access to this part of the hardware.
Window sashes should open and close with little effort. However, this can be a challenge if the weights have been worn out or the sash meeting rail is not properly covered with. This problem can be due to many factors, including an absence of maintenance or 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 hit the frame in the corner that's directly opposite the hinge arm (Photo 1). To resolve this issue, first make sure the sash is squarely inserted into the opening of the frame and then remove it from the window. If the sash was fixed to the hinge arm, remove the hinge and replace it. (Photo 2). Then, put in the new sash (Photo 3).
Due to hinges that are sagging, and a general lack in energy efficiency, older windows particularly those in older homes, may be difficult to open or close. Sometimes just a few easy fixes can help these windows function smoothly and save homeowners money on their energy bills.
To complete these sash repairs it is important to have all the necessary tools in place before you begin. Mark the location of the hinge channel on the frame (Photo 1) with a pencil. This will assist you in getting the channel back on place correctly when you're finished. Remove window repair and take off the hardware including the parting beads (Photo 2) and the cords or chains that hold it in place. Heat gun with nozzle shield and a medium setting can soften any hardened glue. Remove the old sash and place it in a labelled bag.
Sash Weights
Sash weights are able to be replaced to improve the operation of your window sash and reduce energy costs. Sash weights are composed of heavy iron or lead cylindricals that are contained in a hidden cavity and are connected via ropes to the movable window sash. They function as counterbalances and allow you to open and close the window without requiring mechanical or electrical devices. The sash weights are usually disregarded or disabled by homeowners and then turned into scrap when they break; therefore you may have to search for replacements.
A weight from a sash that fell out of the cavity is difficult to get back It is therefore important to find a replacement that fits properly. You will also need a new piece of string, a length of the sash cord, as well as some sash pulleys to connect the new sash weights to the sash cord.
Older windows made of wood are joined by mortise and tenon joints. Hammers and pins can be used to cut off the wood pegs holding the parts together. The majority of them have large diameters on one side and a smaller diameter on the other side, so it is important to remove the small-diameter sides first. Sashes made later in the century used glue instead of pegs. They can be separated by cutting the glue line using the help of a knife, and then tapping the mortised section loose with mallets.
After the sash is released, you can remove sash stops and access the pockets for weights. This is usually done through an opening at the bottom of each jamb. The hole is surrounded by the wooden panel which can be removed to reveal the inside workings.
After you have the sash stopped and the access panel removed, you will be able to remove the weight from the sash and replace it with new. Weigh the sash first to ensure that the weights you have might not be the correct size. After the new weight is in place, tie a string to it and then thread it through the sash pulley. Then nail the string to the frame, but only leave a few inches of string hanging from the head for future adjustments.
Sash Cords
In the majority of double-hung windows the chain or cord is affixed to the weights. This supports and keeps the sashes within the jamb balanced. Over time, these cords could break, making it impossible to raise the window. A new sash cable will restore the ability to move and lower the sash, and ensure it stays in place when it is opened.
The first step to replace sash cords is to find and take out the access panels located in the jambs. They are typically screwed or nailed in and need to be removed. You may be able to employ a hammer and chisel to remove them however, it is always best to lay down dust sheets before beginning any work.
Once the access panel is removed, you can begin working on the sash. Utilize a flat bar or chisel to pry the small partsing beads out of their grooves. They are usually wedged in or nailed in, but they can be prised free, so it's worth taking your time here. If the sash remains in place, break the mortise and tenon joints with the help of a hammer and pin or screwdriver, then unhook the wood pegs that are on each component. The sash should move freely now, but it may require some lubrication to make it feel less stiff.
With the sash in an open position Take a measurement of the sash chain to reach from the pulley on the top of the jamb to the sash slot in the bottom. Cut the cord/chain and then attach it in the previous step. You can either employ a hammer and screws or nails, however nails are less likely to cause damage.
If you haven't purchased a kit that replaces the counterbalance system that was in place before, it's best to keep the original balancing weights in place. They are not expensive and are easy to install if purchased them from architectural salvage stores. Based on the size and shape of your window you might need to install one or two sashweights to keep it open.