Sash Window Repair
Sash windows can add a stylish aesthetic to a home. However, they can be drafty and uncomfortable because of wear and age. Repairing sash windows is a great method to increase the functionality and maintain the original appeal of your windows.
The first step in fixing windows with sash is to remove "pocket covers". These are pieces of wood, low down on the frame, which allow access to the weights.
Sashes damaged by abrasions
If your sash windows have been damaged or leaky it is necessary to go beyond patch up the surface. You can save money by performing a more thorough repair, especially if your home is old and has low insulation. Here are some common problems that sash windows face and the way to fix them:
Sticking Issues
If the sash doesn't fit tightly within the frame, it will be difficult to open or close the window. This could result in rattling sounds and allow drafts into your home.
To resolve this, use a utility knife to score the paint line on the inside side of the sash, then take it off. Be careful not to scratch the wood. You'll then need to apply a sash lubricant, that will help it move smoothly.
Broken Sash Cords
In some instances, older double-hung sashes utilize cotton or metal cords to support the weights used to raise and lower the sashes. Over time, the cords may break, making it impossible to lift or hold the sash in place. To fix double glazed sash windows , follow these steps:
Pull the sash to the right and then remove it from the frame. Cut the cord in the middle of the sash. Remove any nails that are sticking out from the end. With needle-nosed pliers, take out the nail and place it into the side channel. The knot of the cord should be tucked into the hole and secure it with a nail set.
Install the staff beads and reinstall the sash. Be sure to leave slack in the cords to allow for optimal operation. Then, you can reinstall the balances and counterweights. Decorators caulk is an excellent way to prevent the risk of draughts. Apply small amounts between the bead box for staff.
After the frame and sash are fully repaired, bed them in glazing putty. Glazing putty is made of linseed oil and chalk. Mix in enough of the chalk to make it workable, and not to stick to your hands. Let the putty dry completely before applying the sash back and painting the frame.
Broken sash cords
Old double-hung (two sashes) windows utilize cotton cords or metal chains attached to the counterweights that support and keep the sashes in balance within the window jamb. Over time, the cords may break, preventing the sashes from opening and closing, making it difficult to lower or raise the window. Replacing the sash's cords is an easy home fix that can solve these problems in a matter of less than an hour.
Remove the staff bead which separates the upper from lower sashes. You can remove the bead by using needle-nose pliers. Typically, a nail is driven through the knot and into the sash's casing to hold it in place. Remove any rusty nails from the stop beads and scrub off caulk, paint, and old cord residue that has accumulated around the groove in the sash.
To open the window, pull one of the cords that run through the sash. Once you've pulled it as far as it can be make a mark on the cord using pencil, and then cut it to length using an utility knife. When you're done, be sure that the new cord is aligned with the groove of the sash. Also, tie it to the sash using the knot.
If the sash isn't moving, you can cut the cords using your side cutters. When the sash is completely free, you'll need to remove the access panel within the sash channel in order to expose the sash weight pockets, the counterweights, as well as the pulley system. If the window has been painted, you will have to cut the seams using the hammer or chisel to remove the panel without damaging it.
After removing the access panel, you will see two cast-iron sashweights inside each pocket. Take the weights off the front and back and connect the sash cords to the weights with a self tightening knot. After you've tied the new cords, you'll need reattach the sash weights and then reset the pulley system to ensure it functions properly.
Drafts
Sash windows add a bit of history to older homes, but they also present problems with maintenance. They can be difficult to open and close, rattle in the wind, and let drafts in. These problems are usually caused by swelling of the wood or paint buildup, or sash cords that have rotted. There are a variety of inexpensive and cost-effective methods to repair these issues and keep your sash windows working correctly.
Disassembling an old sash is a first step in repair it. Take off the sash and frame, and check whether all parts are in good shape. Sand down the wood to make it look better and prevent drafts. A small amount of silicone or wax can help the sash slide more easily. If the sash still sticks to the wall, use a utility knife to cut off any paint layers. Adding a new set of tilt pins can also improve the window's operation.
Weights are placed over a pulley system to balance the weight of a sash window. The weights are typically cast iron and are accessible via an access panel or pocket cover in the inner box lining of the window frame. A dividing strip is inserted inside the window frame to prevent the weights from colliding.
The process of removing these weights can be difficult, since the upper sash has been painted shut and can be nailed in the correct position. However, if you are diligent and cautious you can easily remove the sash by using a pair of bar clamps that are reversed and break apart, allowing it out of the groove in the rails that meet. It may be necessary to tap and jiggle to loosen it, but once it's out examine the sash and replace it if necessary with new rope.
While you're at it you could also replace the sash balance to make the window easier to open and close. Replacing a double-hung sash window balance is much easier than it sounds and you can do it yourself with the right tools and a replacement kit.
Rotten sill
Even the best-maintained windows will eventually begin to show signs of decay. If the rot is restricted to the sill, it could be possible to restore the window. If it has spread through the frame to the interior of the house and has caused structural damage it's probably the right time to replace it.
It is important to replace a damaged window sill before it causes damage to the window. The first step is to take off the sill plates and studs. If the studs bear loads, you may need to build temporary supports. After removing the old sill and washing off any remaining paint from the sill plate. When the sill is clean, replace it with a brand new board and attach it to the studs.
A rotten sill can look ugly and could lead to future expensive repairs. It can, for example, cause the sash, which is hard to spot, to shift. This could lead to cracks, bowed or damaged glass pane. Additionally, a decayed sill can allow water to get into the wall, which could cause mold and other issues.
It's not as difficult as you think to fix a damaged sill. To stop rot, you must keep the window free of dirt and debris. You should also apply a sealant that is protective to the frames of your windows to shield them from moisture. In addition, you must use a dehumidifier in order to control the humidity levels within your home, which can stop wooden sashes from swelling or sticking.
Sash windows are often plagued by stuck sashes. To get them out of the way you can apply small amounts of wax or silicone spray to the window tracks to enable them to slide easily. If the windows are stuck due to paint buildup, you can use a utility knife to cut through the layers of paint and free the sashes.
Another way to solve stuck sash issues is to put back in the parting bead. If the sash remains stuck, you can try draught-proofing it. This is done by placing strips of rubber between the frame and sash that reduces air flow and improves the acoustic performance of the window.