Window Sash Repairs: 10 Things I Wish I'd Known In The Past
Window Sash Repairs
The majority of homeowners don't give much thought to window sashes, so long as they are capable of being opened and closed and keep the air inside and the outside air out. As time passes windows sashes get worn out and cause drafts, air leaks, or even sashes that are stuck.
With a sash propped on a homemade easel, the author works glazing points into gaps. He also scrapes paint off and applies a wood preservative to the frame.
Sash Weights
When windows aren't opening or closing with ease or are sagging due to a problem with the counter-balancing system, it's possible that a may be to blame. This can be caused by an ailing or damaged sash chain or a sashweight that is not aligned properly or not attached to a weight, or a damaged or damaged pulley.
The sashweights are small boxes made of cast iron that support the counter-weight system and support the sash. They are found in the bottom rails of each window frame, covered by an access panel of wood that can be removed to reveal their whereabouts. These panels can be removed to allow access to the sash-weight pockets in order to clean, repair or replace them.
There may be a problem with the sashweights, if you've been using your sash windows for a while. They might lean or catch. This can 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 incorrectly (some people have disabled their weight systems by cutting them off and taking the weights out to save money, or turning them in for scrap metal).
To resolve this issue, remove the stops (the trim that runs along the inside edge of the window where it joins the frame to hold it in position). Put them away. This requires you to be careful so as to not scratch the profile of your meeting rails. Then, you can employ a mallet or hammer to break up the rail and stiles and examine them for damage or any repairs that require to be made.
Once you've inspected the stiles and rails lay down dust sheets and then begin working on the sash itself. Start by removing the wood pegs from 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 removing the stop moldings for sash and removing any sash cord knots still attached and, finally, taking the sash off itself.
Next you will want to weigh the sash in order to determine the amount of weight is required for its proper functioning. You can buy vintage replacement sashweights online or at some home improvement stores. Be sure to get the right size to avoid over - or under-weighing the sash.
Sash Cords
Sash cords that are worn out or damaged can cause sash window issues. Sash cords are under constant pressure from the weights which can cause them to break over time, particularly when they're not maintained properly. The sashes won't be able to open or close as easily if the cords break. The problem may be caused by excessive force, ageing, lack of maintenance, or the buildup of moisture. When you repair windows, it's important to replace the old cords with new ones made from materials that last and resist moisture.
Start by removing the interior stop strips, thin wood strips which hold the sashes in place, using a utility blade and a Chisel. Take care to remove the stops of the sashes while keeping an eye on any that are cracked or broken. After the stops have been removed, you will be able to access the sash weights through an access panel that is cut into the bottom of the frame or by opening the jamb, and then removing the cover for the weight pocket.
Accessing the sash cords requires some extra effort, but it's not difficult with the right tools and perseverance. Get rid of the old cords first by cutting them at knots, and then pulling them out. Then, remove the sash from the frame and put it aside. Take off the staff bead, the nail that keeps the sash in place. Insert the nail about a foot in length into the hole. This will keep the sash in place while you string counterweights.
Reattach the sash string after reinstalling upper sash. Verify that the sashes are moving smoothly and are in a balanced position. Reinstall the lower sash and repeat the procedure. Check that the sashes are properly set and are moving smoothly.
Once you've completed installing the counterweights, reconnect the sash cords by putting an sash cord into the pulleys and threading the cord's other end through a knot hole in the sash to secure it in the correct position. Repeat this process on both sides of the sash, making sure that the sashes function normally again.
Drafts and air leaks
Over time, the materials that secure your sash window the frame of your home deteriorate. This can cause drafts and energy losses. A thorough inspection will identify the areas of concern and help you determine the options for fixing your window sash. Your personal preferences for comfort and your ability level determine whether you are able to handle window repair or require expert input. The historical status of your property and structural integrity concerns influence the scope of work necessary.
When cold air sneaks in through a drafty window, your furnace has to work overtime to keep your home warm. This inefficiency increases your heating costs and could affect the efficiency of your HVAC system. Drafts can also affect the quality of air inside and disrupt indoor comfort by adding allergens, pollutant and humidity from outside.
A typical sign of a drafty window is the sensation of cold air entering your room regardless of all windows and doors being shut. Other tell-tale signs include an increase in the temperature of your room near the window, and condensation on the frame or sill.
Repairing drafty windows is a an easy task that will reduce your energy bills and increase comfort inside. Start by inspecting the exterior of the window. Find areas of unfinished caulking that is cracked or wood that exposes the window to cold air.
Examine the sash's interface with the frame. This includes the parting bead, and the staff bead. Check the condition of weather stripping at these points (felt strips or tape) to determine if they are intact and functional. If not, this needs to be replaced.
Then, think about the condition of glazing putty. It is a hard putty that holds panes glass in place. Examine for cracks and a crumbling surface that could expose the sash's surface to moisture. This could lead to mold issues and damage to the glass.
Apply a fresh layer glazing putty on the outside of the window to fix the issue. To fix the glazing points, make use of a flat-bladed screwdriver push them into the right position. Wrap a piece of fabric and then foam around each point. This acts as an insulation against cold air.
Aesthetics
Window repair can give old windows a new look with less expense than an entire window replacement. Particularly for those with older homes, a full replacement can be a big undertaking and a major cost. Sometimes, repairing window sashes can bring back the original beauty of a home and add value to it as well.
It is important to keep an eye on the condition and wear of window sashes to avoid any 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 repairing a sash is usually less than the cost to replace the entire window, and it can help save you money on energy bills as well.
The first step is to lower the upper sash down to the bottom. This is usually simple and will help you get an excellent view of the "parting beads" (these are grooved pieces in the meeting rail on either side that keep the two sliding sashes separate). They can be removed using a blade from a small pry-bar or a putty-knife. They are usually fixed in place and painted, so you must be careful not damage them or the sliding sash.
After removing the beads that separate, you'll have to remove the covers for your pockets. These are small pieces of wood that are screwed to the frame at the bottom. They permit access to the sashweights. Once timber sash windows are removed, the sash can be moved between the two sides to ensure that it moves in a smooth manner.
If it doesn't, there might be a problem with the counterweights or sash cords. After you've inspected all of these, you can repair them as needed.
Wooden windows look beautiful and natural. They work well with contemporary or traditional interiors. They are also highly customizable with a variety of stain and paint options. However, wooden windows require regular maintenance to prevent damage and rot.