Window Sash Repairs
Sashes for windows must be checked regularly for mold, mildew and damage. You can save future repair costs by catching these issues early on, before they become too much.
The sash is an interior frame that can move vertically up and down in windows that are open. This article will show you how to perform simple repairs to sash.
Weather Stripping
Wooden window sashes are a great way to add an elegant look to your home. They are also sturdy and will last for many years when they are maintained properly. However, they can get damaged or deteriorated over time, due to exposure and normal wear. Sash repair experts can restore windows back to their original condition and keep them looking great much longer than replacement windows.
Weather stripping is the most important thing to address when repairing sash windows. It's on both the frame and the sash. It could cause drafts if worn out or loose. Start by identifying the window brand and the glass manufacturer's date (etched on the corner of the glass or on the aluminum spacers between panes). Remove the sash and mark its width and height so that you can get replacement weather stripping that matches.
Then, take it off and place it on a table so you can access all four sides. If your sash has a double-hung, you'll also need to remove the weights as well as their accompanying ropes which should have slipped into the intended pocket in the jamb liner. Once you've removed the sash and the weights, use a utility knife to cut away the old weather stripping at the corners, then remove it by hand or using a putty knife.
Once the sash has been cleared, you can replace parting stops. These are long pieces wood that are used to separate the two sashes. Pam prefers to use the standard 1/2-inch by 3/4 inch window trimming from the lumberyard. But, you can substitute for a scrap piece of lumber.
After removing the parting stops and cutting them to the desired length and thickness, apply a thin layer of glazing compound on the bottom of the sash. Smooth it out using your putty knife, then let it dry for at least a day. When it's completely dried then apply a top coat of acrylic latex paint. This will protect the putty and give your sash a fresh look.
Sash Hardware
The hardware that holds window sashes is susceptible to wear and tear due to age and use and the result could be a window or door that won't open or close easily. It's important 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 lubrication into the jamb channel then slide it open to see if that solves the issue. If not, the problem is likely with the sash balance, and you'll need to take out the sash to access the hardware.
Window sashes should open and close without much effort. However, this can be a challenge if the weights have been worn out or the sash-to-rail connecting rail isn't glazed. This issue could be caused by a variety of things, such as lack of maintenance or by the wrong weight rating for a particular 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 that's opposite the hinge arm (Photo 1). To resolve this issue, first make sure the sash fits squarely in the opening of the frame and then remove it from the window. If the sash is secured to the hinge arm, you'll have to remove the hinge arm and replace it (Photo 2). Then, put in the new sash (Photo 3).
Due to hinges that are sagging, and a general deficiency in energy efficiency, older windows particularly those in older houses, could be difficult to open or close. In many instances, a few minor repairs can turn these windows into smooth operators for the first time and save the homeowner money on energy bills.
It is crucial to have the tools you need before you begin. Mark the location of the hinge channel on the frame (Photo 1) with pencil. This will help you to position the channel in the right position after you've finished. Remove the sash, and remove all the hardware, including the beads for parting, cords, and chains that keep the sash in place. Heat gun with nozzle shield and a medium setting can soften any hardened glue. Take off the old sash and store it in a bag labeled.
Sash Weights
Sash weights can be replaced to enhance the efficiency of your window sash and decrease the energy cost. Sash weights consist of iron or lead cylinders that are encased in a hidden cavity and attached by ropes to the moveable window sash. They are counterbalancers that allows the window to be opened and closed without using mechanical or electrical devices. When they fail, sashweights are often ignored or disabled by homeowners.
A sash weight that has fallen 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 sashcord and some sashpulleys to tie the weights you are replacing to the cord.
Older wood windows are joined by mortise and tenon joints. The wood pegs holding the components together can be removed with a pin punch and hammer. The majority of them are large on one side and smaller on the other. It is crucial to first remove the smaller diameter sides. Later sashes used glue instead of pins. They can be separated with a knife and mallet.
After the sash is released, you can remove sash stops and access the pockets for weights. Usually it is done by drilling an opening in the bottom of each jamb. The hole is surrounded by the wooden panel which can be removed to reveal the inner workings.
After the sash has been stopped and the access panel removed, you'll be able to take off the weight from the sash and replace it with the new. Be sure to weigh the sash before you do this, since the old weights may be different in size from what you require. Once the new weight is installed then tie a string to it and then thread it through the sash pulley. Then nail the string to the boxed frame, but leave a few inches of string sticking out from the head for future adjustment.
Sash Cords
Most double-hung windows of the past come with a chain or cord attached to the weights which supports and keeps the sashes in balance within the jamb. Over time these cords can break, making it impossible to raise the window. A new sash cable can restore the ability to move and lower the sash, and keep it in position when opened.
The first step to replace sash cords is to find and take out the access panels located in the jambs. These are usually screwed or nailed into and must be removed. You may be able to employ a hammer and chisel for removing them but it's best to lay down dust sheets before starting any work.
Once window repair is removed, you can begin working on the sash. Use a flat bar or chisel to pull the narrow parting beads out of their grooves. These are often wedged in or nailed in, but they can be snipped out which is why it's worth your time here. If the sash remains in place, pull the mortise-and tenon joints with a screwdriver or hammer and then remove each wood peg. The sash should be able move freely now, but it may require some lubrication in order to feel less stiff.
Determine the length of the sash chain or sash cord needed to reach the sash slot on the bottom, and the pulley located at the top of the jamb. Cut the cord or chain, and then secure it in Step 6 above. You can use a hammer and screws or nails, but nails are less likely to cause damage.
It is best to keep the original weights if you've purchased a kit to replace the old counterbalance. It's not expensive to buy them from a salvage store and they'll be simple to install once you have the sash opened. Depending on the size and shape of your window, you may need to use one or two sashweights in order to keep it open.