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Sash Windows Repair and Replacement
Sash windows older than 20 years may have many issues, including draughts and rattles. They might also be inefficiently insulated. With a little care, they can be restored to a high level of performance.
First, remove the paint seal from the window stop using a utility knife. Then remove the staff bead, then take the upper sash out by removing chains or cords and storing the hardware in a labeled bag.
Sealing
Sash windows look gorgeous in old buildings, however they require regular maintenance and are susceptible to problems like cracks in putty, wet rot and drafts. It is possible to decrease energy loss and increase the efficiency of windows with sash by replacing them or repairing them, or sealing them.
Draughts are usually caused by gaps between the sash and the frame. They can also lead to noise reduction and rattling. There are a variety of methods to limit air leaks within a sash window, including sealing beads, special products and secondary glazing.
A gap between the top or bottom of the sash, and the jamb frame, is an issue that is common. This can lead to water leaking into the wood the wood, rotting and the growth of mould. Seal the gap using silicone, polyurethane or foam sealant.
If window and door repairs is hindering the windows from closing and opening easily, it could be necessary to install new sash runners or spring bronze. These bronze strips are tied or stapled to the lower sash edges to stop sideways rattling. They are available at DIY stores. Tubular vinyl weather-stripping is another option however it can tear, and can make a difference to the appearance of a window.
It is important to measure the entire window opening prior to installing a new sash runners. It is best to take measurements from the top of the sash up to the horizontal centerline on the rail that connects them and from the bottom sash down to the sill. These measurements can be incorporated into the new runners, which will help ensure a proper fitting and better operation of the window.
In older buildings there is a greater gap between the sash and the frame at the leading edge. It can be draught-proofed using a strip of V-strip that is self-adhesive. However, it is important to take this into consideration when measuring and cutting material.
The strip should be cut at the top of the sash, with an inch extra on each side to allow for movement. The strip should be cut to a square shape and then positioned in a way that the ends are matched to the angle of the window sill. It is also crucial to make use of stainless steel screws as brass can rust, and a high-quality polyurethane or silicone adhesive.
Refurbishment
The windows with sash are a stunning, historic feature of many homes. Yet despite their beauty, windows like sash windows can be prone to a myriad of issues. Draughts, rattling or leaks are all common problems. And rotting frames and meeting rails, broken glazing bars or weights that are not working properly can add to the inconvenience. If these issues occur, it's time to consider a sash repair or replacement.
Refurbishment can be a more costly option than simply replacing the sash itself, but it will bring back the appearance and function of your sash window as good if not superior to its original state. Refurbishment involves re-lining the meeting rail as well as the sash box using traditional putty, and repairing any damage caused by rot. Re-painting of the timber frame is also included, as is the re-glazing process using traditional glass. A full refurbishment can also include adding draught proofing, re-attaching the sash furniture/ironmongery and replacing the parting bead (the dividing strip between the two panes of glass). It is also recommended to install brush pile weather strip to minimize the noise of rattling.
If a replacement sash is required It can be made using the same design to match your old frame. This will maintain the heritage style of your property. This is especially important for buildings that are listed, as any changes to the windows require planning permission.
Before you put the new window in, it's best to examine its metal tabs with those on the old sash (see below). If they're different shapes, the new sash will not fit in the window frame slots.
If a window is damaged, it's essential to choose between replacement or repair, because each type of work will involve a different level of expertise and price. If a large portion of the glass in a sash is missing, replacing it would be an alternative. If the glass is only damaged in a tiny area or a sill is rotting or rotting, then a repair could be better.
Replacement
While many homeowners are keen to keep their old windows in good order, deterioration can eventually cause issues such as rattles, draughts or even broken glass. This is why it's often the only solution to these problems. But there are ways to improve sash windows, beyond simply replacing them, like installing draught proofing as well as secondary glazing.
It's important to consider the severity of the issue, as it may not be feasible to replace a complete window. For example, a foggy glass issue is usually a problem in the sash itself and is usually able to be resolved without tearing out the entire frame. It is typically possible to fix a weak seal using a couple of simple fixes, rather than tearing out the entire frame and replacing it.
Sash windows are extremely complex in design and feature many moving parts. It can be challenging to fix common issues like broken panes or sash cables that have snapped. Resolving these issues often requires dismantling the window frame, which isn't a job most homeowners want to tackle themselves. For these reasons, many homeowners choose to work with a specialist.
A specialist can assist in restoring windows made of sash back to their original glory, or even bring them up to the latest energy standards. This could include reconditioning the frames and installing secondary glazing to stop heat escaping from the window. It is also possible to add a brush-pile strip in order to minimize drafts and stop the window from shaking.
To begin a repair start by removing the window stops (the moldings that are in front of the lower sash). Then loosen the staff and pull the lower window sash. Remove the cords and chains from both sides. Then, remove the sash weights from the bottom of the weight cavity and remove them. Place the hardware in a safe place. Soften any old, hardened putty or filler by using a hot gun. Then scrape it off with the help of a putty knife. Reassemble the window, reattach the hardware and then lubricate the pulley axles by using silicone or Teflon spray. Install the parting beads and reinstall upper sash.
Repair
The choice to replace or repair windows with sash is a major one for homeowners. Although modern replacements can provide a host of benefits but the original features of an older home give personality and value to the home and are generally less expensive to repair than replacing them. Inspecting them regularly can also lower energy costs. Sash windows are susceptible to rattles, drafts and condensation, and these issues can lead to higher cost of energy and damage to the frame and sash.
Sash windows can be a challenge to open and close. The mechanism that slides can become dislodged or even draughty. Repairing a sash windows requires extensive removal of the window frame and should be left to the professionals. However, with the right tools and knowledge it's possible to repair old windows with sash yourself. Adam shows Jess the basics:
Remove any security fittings that are in front of the lower window sash. Then, take off the staff bead. Finally, pull out the bottom sash. Then, remove the cords or chains on both sides, and tie the ends to stop them from being pulled back into the frame by the attached weights. It's now time to remove the upper sash. Take out the sash stops, a thin vertical wood strip that holds the sash. Also, take off any paint-encrusted hardware. Pull the sash back to reveal the weight. It is a massive iron or lead cylinder that is hidden inside a cavity and supported by an elastic cord. To prevent the sash from falling into the void hit it with a nail and sacrifice the weight.
After the sashes have been removed Clean the jamb and meet rails. remove the glazing bars and sash cords, and scrape off any paint off the sash stops using a utility knife. After the sashes have been put back in place, you can reattach the stops using nails that are small enough to prevent damaging the weight that is balancing.
Reassemble the sash by inserting the upper sash first on its track, then the lower sash. Make sure the sash stoppers are in the correct alignment with the frame, and then reattach the beads that separate if required. Then, reconnect the sash cords or chains and then re-attach the sash pulley axles.