Window Sash Repairs
The majority of homeowners don't pay attention to window sashes, so long as they're able to open and close and keep the air inside and the air out. But over time, they can start to wear out, leading to air leaks, drafts, or even sticking sashes.
The author makes use of a sash that is supported on an easel for working glazing points into the gap. He also scrapes paint off and then applies an oil-based preservative to the frame.
Sash Weights
If your windows aren't opening and closing with ease, or are stuck, a faulty counterbalancing system could be the reason. This could be due to a damaged or missing sash chain or a sashweight that is not aligned properly or not attached to a weight, or a damaged or cracked pulley.
The sash weights are small boxes, typically made of cast iron, that serve to support the sash as well as help balance the counter-weight system of the window. They are found in the bottom rails of each window frame and are covered with an access panel of wood that can be removed to reveal their position. The panels can be removed to allow access to the sash-weight pockets to clean or repair them, or even replace them.
If you've used sash windows for a period of time, you may have a problem with weights on the sash that cause them to sag or catch. This could be due to the weights being too heavy (they are supposed to be a bit heavier than the top sash) or due to them being installed in a way that isn't correct (some users have disabled their weight systems by cutting them off and taking them off to save money or turn them into scrap metal).
To remedy this issue take out the stops (the trim that runs along the inside edge of the window at the point where it meets the frame to hold it in place). Set them aside. You'll need to do this with care so as not to damage the profile of the meeting rails. Then you can employ a mallet or hammer to break up the stiles from the rails and check the rails for damage or any repairs that require to be done.
After inspecting the stiles and rails of the sash dust sheets on the floor and start working. Start by taking the wood pegs out of the mortise and tenon joints using pins and a hammer or screwdriver. Once the pegs are gone, you can begin to disassemble the sash by taking out the sash stop moldings, pulling off any sash cord knots still attached and, finally, taking the sash off itself.
The next step is to weigh the sash and determine how much weight is required for its proper functioning. You can find vintage replacement sashweights on the internet or at some home improvement stores. Be sure to get the correct size to avoid over or under-weighting the sash.
Sash Cords
Sash cords that are worn out or broken can cause sash window issues. The weights exert constant pressure on the sash's cords and this can cause them break over time. If cords break, sashes will no longer open and close easily. The problem could be caused by a number of reasons, including excessive force, aging, lack of maintenance and moisture buildup. It is essential to replace the old cords during window sash repairs with new ones made from an material that is strong and resistant to moisture.
Begin by removing the internal stops and the thin pieces of wood that hold the sashes in place, using a knife or a chisel. Pry the stops from the sashes carefully, and be on the lookout for cracked or broken ones. Once the stops are removed, you can access the sash weights through an access panel cut into bottom of the frame or by opening the jamb and taking off the cover that covers the weight pocket.
It may take a bit more work to reach the sash cords, but with the proper tools and a bit of patience, it's not difficult. First, take off the old cords by cutting them close to their knots and pulling them free. Then, remove the sash from the frame and set it aside. Take off the staff bead, the nail that keeps the sash in place. Install a nail of about a foot in length into the hole. This will hold the sash in place while you string counterweights.
After reinstalling the upper sash, reattach the sash cords and make sure the sashes are in a balanced position and move smoothly. Reinstall the lower sash, and repeat the procedure. Make sure that the sashes are properly set and are moving smoothly.
Reattach the sash cables once you have installed the counterweights. Thread the cord through the pulleys, and then through the knot hole in the sash. Repeat this process for the opposite side of the sash, making sure that the sashes work as intended again.
Air and Drafts Leaks
Over time, materials that connect your sash window to the frame of your home deteriorate. This leads to drafts and energy losses. A thorough inspection will identify the problem areas and help you determine your window sash repairs options. Your personal preferences for comfort and your ability level determine whether you are able to manage window sash repairs or require professional input. The scope of work is also influenced by historical property status and structural strength.
If cold air is leaking through a drafty window or window, your furnace will need to work harder to heat your home. This can result in higher heating costs and could compromise the efficiency of your HVAC system. Moreover, drafts disrupt your indoor comfort and degrade indoor air quality by forcing into the outdoor air pollutant, allergens, and humidity.
A common sign of a drafty windows is the feeling of cold air circulating through your home despite all doors and windows being shut. Other signs to be aware of are changes in temperature near the window, as well as condensation around the frame or sill.
Fixing drafty windows is a simple task, which will lower your energy bills and increase comfort inside. First, inspect the outside of the window. Look for bare wood and areas where the caulking has cracked, exposing the gap to cold air.
Examine the sash's interface with the frame, including the parting bead and staff bead. Check the condition of weather stripping at these points (felt strips or tape) to determine if they're intact and functional. If not, it needs to be replaced.
Consider the condition of glazing putty. It is a tough putty used to hold panes of glass that has been tempered in place. Check for cracks or crumbling that expose the sash's surface to moisture which could cause mold problems and damage the windows' glass.
Apply a fresh layer glazing putty to the inside of the window to fix the issue. To fix the glazing points, employ a screwdriver with a flat blade to push them into the right position. Wrap a piece or fabric and foam around each point. This acts as insulation against cold air.
Aesthetics
Window repair to sash can give older windows a fresh appearance for less than a complete replacement. A complete replacement of windows can be a costly and time-consuming project, especially for older homes. Sometimes, repairing windows sashes can help restore the original beauty of a house and add value to it as well.
Monitoring the condition of your window sashes is important to prevent major issues. If you're not sure whether your windows require repair it's best to have them evaluated by an expert. The cost of a sash repair is often much less than the cost to replace the whole window, and can save you money on energy bills as well.
First, lower the upper sash to the bottom. This is generally easy and allows you to observe the "parting beads" which are the grooved bits on the meeting rails that keep the two sliding sashes apart. They can be removed using a blade that is attached to small pry-bars or a putty knife. They are usually nailed into place and painted, so you need to be careful not to harm them or the sliding sash.
After removing the beads that separate, you'll have to remove the covers for your pockets. These are pieces of wood within the frame, lower down, that allow access to sash weights. They are usually fixed with nails - they may also be snagged with paint so you need be extra cautious. After the nails are removed you can move the sash upwards and downwards to ensure it moves in a smooth manner.
If it doesn't, it could be a problem with the counterweights or the sash cords. After you've checked all these, you can fix them as needed.
Wooden windows look beautiful and natural. They are a great fit with both traditional or contemporary interiors. They can also be customized, with many colors and stain choices. However, wooden windows require regular maintenance to avoid damage and rot.