Window Sash Repairs
Sashes for windows must be inspected regularly for signs of mold, mildew and other damage. You can reduce future repair costs by catching problems in the early stages before they become out of control.
The sash is an interior frame that is able to move vertically up and down in windows that open. This article will demonstrate how to perform several simple repairs to the sash.
Weather Stripping
Wood window sashes give the classic look to your home and, when properly maintained, they can last for many years. They may, 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 beauty much longer than replacement windows.
The first step for sash window repair s is addressing weather stripping, which can be found on both the sash as well as the frame. It can cause drafts if worn or loose. To fix it, begin by determining the brand of your window and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Remove the sash, and mark its width and height so you can find a replacement weather stripping that matches.
Then, you can remove the sash from its holder, and place it on a flat surface to allow you to access all four sides. If your sash has a double-hung, you'll need to remove the weights as well as their ropes which should have slipped into the pocket that was intended to be in the jamb liner. After removing the sash with the utility knife, you can remove the old weather stripping by hand or using the putty blade.
After the sash has been cleared it is time to replace the parting stops. These are long pieces that split 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 stoppers for parting and trimming them to the desired length then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife and let it dry for a minimum of a day. When the putty is fully cured it is possible to apply a topcoat of acrylic. This coating will protect the putty and give your sash a new appearance.
Sash Hardware
The hardware that supports window sashes is susceptible to wear and tear due to time and usage and the result could be a door or window that won't open or close easily. It's a good idea to know that replacing or repair of this hardware is typically easy and affordable. If you're having trouble opening the sash, spray some lubricant into the jamb channel. Then, you can slide the sash open to see if this resolves the issue. If not, the problem is most likely due to the sash balance and you'll need to take out the sash in order to access the hardware.
Ideally, window sashes should be able to open and close with minimal effort but this is a difficult task if the weights become worn or if the sash meeting rail isn't properly coated. This issue can be caused by a variety of reasons, such as insufficient maintenance or an incorrect weight rating for the specific window sash.
If the hinge arms of a window begin to slide, this could cause the sash's to drag and eventually hit the frame in the corner in the opposite direction of the hinge arm (Photo 1). To resolve this problem, first ensure that the sash is squarely inserted into the opening of the frame and then take it out of the window. If the sash has been screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Due to hinges that are sagging, and a general lack of energy efficiency, windows that are old especially in older houses, could be difficult to open and close. In most cases, a few simple repairs can turn these windows into smooth operators again and save the homeowner cash on energy costs.
In order to make these repairs to the sash it is essential to have all the tools needed before you begin. Begin by marking the position of the hinge channel on the frame with pencil (Photo 1). This will allow you to get the channel back on position correctly after you've completed. Take the sash off, and remove all the 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. Take off the old sash and keep it in a labeled bag.
Sash Weights
If your window sash repairs are to replace a damaged cord or to keep your windows functioning by replacing worn out weights on sash can improve sash operation and reduce the energy cost. Sash weights are hefty lead or iron cylinders, which are enclosed inside a hidden compartment and attached to the movable the sash with rope. They provide counterbalance which allows the window to be closed and opened without the use of electrical or mechanical devices. The sash-weights are typically neglected or ignored by homeowners and turned into scrap when they fail. Consequently, you may need to search for replacements.
A sash weight that has fallen out of the cavity is difficult to recover, so you will want to locate a new one that is suitable for the. You will also require a new piece of string, a length sashcord and a few sashpulleys for tying the weights you are replacing to the cord.
Mortise and Tenon joints can be used to join old wood windows. Pin punch and hammer can be used to take out the wood pegs holding the components together. The majority of these pegs have an enormous diameter on one side and a smaller one on the other, which is why it is essential to remove the small-diameter sides first. Later sashes used glue instead of pins. They can be cut by using a knife and mallets.
Once the sash has been removed, you can take off the stops on the sash and get access to the pockets for weights. Usually it is done by drilling an opening at the bottom of each jamb. This hole is covered by an access panel made of wood which can be removed so that you can observe the inner workings of the frame.
After the sash has been stopped and the access panel is removed, you are able to remove the weight that was previously installed and replace it. Make sure you weigh the sash prior to you begin, as the weights that were previously used may be different sizes than what you require. Once the new weight has been installed, you can thread the string through the sash pulling mechanism. Then nail the string to the boxed frame, leaving a few inches of string sticking out from the head for future adjustments.
Sash Cords
In the majority of old double-hung windows, a cord or chain is attached to the weights. This keeps the sashes in the jamb level. As time passes, these cords may break, making it difficult to raise the window. A new sash cord can restore the ability to move the sash upwards and downwards 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. They are typically screwed or nailed in and need to be removed. You could use a hammer or chisel to prise them off, but it's always better to lay down dust sheets prior to starting any work.
After the access panel has been removed, you can begin working on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves using a chisel or flat bar. It's important to be patient as they're often stuck or nailed to the floor. If the sash is still in place, pry 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 around freely, though it might require lubrication if it feels stiff.
Measure the length of sash cord/chain required to reach the sash slot at the bottom, and the pulley on the top of the jamb. Cut the cord/chain and then fix it using the 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 counterbalance system that was in place before, it's best to keep the original balancing weights in place. They're not expensive and easy to install if purchased them at architectural salvage stores. Based on the size of your window one or two sash weights might be required to keep the sash in an open position.
