Tips For Sash Window Repair
Sash windows that rattle or leak need to be fixed. Draughts, rotting timbers as well as misaligned meeting rails, and sash weights all require attention.
Pam first covers each pane with a layer of glazing. Then, she secures it using glazier's points instead of pins, to avoid breakage.
Weather Stripping
The weather stripping is a thin layer of material that covers the edges of windows and doors when they're closed, keeping out the outside air and the stuff it contains. It keeps drafts from blowing through the gaps, making your house too cold or letting noise from outside in. You can buy ready-to-use weather stripping in rolls of various dimensions, or cut the material to size to fit your window sashes.
For single-hung windows, apply the strip between the meeting rail and sash, and between the lower and upper sashes. In addition, install the same strips on the side of the frame to avoid rattling.
Weather strips are required on both sides of double-hung windows. You may also have to put strips inside the frame near the bottom. The strips stop the window from closing and also stop insects and dust from blowing through the space between the jamb and the sash.
Before putting in the weatherstripping, clean the frame of the sash with mild soap and warm water. Dry it using a soft cloth. Clean any paint residue and caulk around the inside stops with the help of a utility knife. Use a putty blade to protect the frame, and carefully pull the stops apart. Replace the weather stripping.
The new weather stripping should be flexible enough to permit the sash's freedom of movement, but firm enough to stay in place when closed. Adhesive-backed foam tape is a popular choice. It is easy to use and comes in a variety of thicknesses. Door sweeps are available in a variety of sizes and types, and can be used on any type of window and doors.
When you're ready to install the new strip, make sure you compare the tabs made of metal on the new sash to the ones on your old sash. If the tabs have a different shape they won't fit into the slot on the frame of the window correctly. You'll need to remove the sash completely before starting with the process. The individual sash replacements won't cost much and a complete window replacement isn't going to be a huge expense.
Sash Cords
If you are replacing the sash cords, begin by removing the parting beads thin pieces of wood that divide the inner and outside frame of the window. It is possible that they are stuck in place however a hammer and nail set will do the trick. Be sure to apply a tarp, because sash windows are messy and you'll be causing damage to paint and wood that could be rotting, particularly in older homes. Also wear a mask, because dust can contain lead.
Then take out the upper cord and sash. If you are not replacing the cords, cut them off and tie them up to prevent them from pulling through the holes. If you're installing new ones, first remove the nail that connects each one to the sash and take out the nails that secure each cord to the frame (the nails are referred to as"glazier's points"). If the pockets on each side of the frame remain in place, take them out with the hammer and nail set, or with a crowbar. You'll likely have scrape off some of the old sash cord material too.
When the pockets are completely free and you're able to remove the outer sash, and you'll be able to see the channels on each side of the frame, where the cords of the sash run. Choose cotton sash cords when you're replacing them. Cotton ropes will last longer than synthetic cords, that stretch and sag. You'll also have to ensure you have the correct amount of weight for each sash. You can weigh them using a kitchen scale to make certain but the weights must total approximately half the size of the sash.
If the tilt pin at the bottom of the lower sash is still in place, reset it. To do this, you'll have to lift the lower sash up. Be careful not to let it drop. After that, lock the pin. Then, insert a new sash balance (the tube that holds the weights) and you're done! (Don't forget to verify and relock the tilt pin on the top sash.)
Parting Beads
The parting beads (vertical strips of wood holding the lower sash) and the staff bead are an integral part of a sash's window. They help to retain the weights of sash window glass repairs windows, stop water ingress and create a seal between the inner and outer boxes. These can cause excessive draughts and rattle if they're damaged or are in poor state.
Use a sharp knife and cut along the paint joint between the parting beads and frame of the window box. Check for any nails or screws before gently removing the parting beads from their narrow grooves. They are designed to fit comfortably, but they may be nailed in place. Remove any sash cords that are nailed.
Once the parting bead is removed, it is possible to remove the lower sash and take the meeting rail (which overlaps the bottom sash on the double hung sash) from both sides. The meeting rail can then be lifted out of the frame, which allows you to gain access to the window panes.
You can clean the sash windows and re-attach any sash furniture/ironmongery, lubricate the pulley axles & test the operation of the window. If you are having difficulty closing or lifting the window, it might be worth looking at alternative sash balance systems. These are discussed in a separate article.
Apply strips of draughts and paint the sash window frames (with an oil-based primer of good quality). Alternatively sand down to smooth and then apply multi-purpose putty. Apply a small amount of 'fronting putty' to the area where the glazing rebates meet the internal sash sash upstand. Then, you can front it into the putty using a fillet to create a smooth edge. Finish just a few millimeters below the sightline. Replace the sash cords and tie knots if needed and re-hang the window. You may want to consider using white 6mm braided marine rope / cord as this will last much longer than the cheap cords that stretch over time. This will also reduce the opening distance of the sash window, making it easier to close.
Glass
Most homeowners don't take the time to spend much time thinking about the mechanical functions of their windows However, they are happy when they open and close easily and keep outside air out and the inside air in. Sash windows can be costly to fix or replace when they have issues. There are several ways to save money on window installation without having to buy new windows.
One option is to have the sash window glass replaced with like-for-like designs that complement the style of your home's period. Another option is to install laminated glass, which will help safeguard your family from glass shards that break and reduce the transfer of UV rays. You can also select patterned or texture glass. This can provide privacy, while allowing natural light into the space. Draught-proof strips are also available to improve the efficiency of energy and reduce noise pollution.
Most often, sash windows that are difficult to move upwards and downwards aren't just stuck, but they have been damaged over time. This can be due to moisture accumulation and changing humidity that causes the wood to expand and shrink at different rates. This can cause the sash to swell and become discolored. It can also be difficult to open and close.
The first step to take is to ensure that the frame of the sash is in good working order. If the wood is decayed or sagging and there's an abundance of moisture, it needs to be repaired before any other work can take place. This is a task for professional window contractors, and it can be costly.
After the frame of the sash has been inspected the next step is to replace the pane of glass. This can be done while the sash is still in place, but it is simpler to remove the frame and work on a table. Take out any glazing points, and then putty to hold the glass in place. It is crucial to wear protective clothing during the process. The next step is to cut new glass to the size required and install it in the frame using a glazing Hammer. The glass is extremely tough and is prone to cracking or breaking.