Sash Windows Repair and Replacement
Older sash windows suffer from a range of issues, including draughts rattles, and inadequate insulation. With a little attention they can be repaired to a higher level of performance.
First, scrape off the seal of paint from the window stop using the knife of a utility. Remove the staff bead, then pull out the upper sash and remove any cords or chains. The hardware should be stored in a bag with an identification label.
Sealing
Sash windows look gorgeous in old buildings but they require maintenance and can be subject to issues such as cracks in putty, wet rot and drafts. Sealing, replacement or repair of the windows sash is an effective method to eliminate these issues and improve energy efficiency.
The gaps between the sash and frame are the primary cause of draughts. They can also cause rattles and reduce sound-proofing. Sealing window repair , special products, and secondary glazing may be used to limit the air leakage in the shutter.
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 mould growth. Seal the gap using silicone, polyurethane, or foam sealant.
If a gap is hindering windows from opening and closing smoothly, it may be necessary to replace spring bronze or sash runners. These bronze strips are tied or stapled to the lower sash edges to stop the rattling of the sides. They can be bought at DIY stores. Tubular vinyl weather-stripping is another option but it can tear, and can detract from the appearance of windows.
When replacing sash runners, it is important to take full measurements of the window opening. It is recommended to measure from the top of the sash to the horizontal line of the rails that meet, and from the bottom of the sash down to the sill. These measurements can be transferred to the new runners, which will ensure a perfect fit and better operation of the window.
In older buildings the gap between the frames and sash is typically greater around the leading edge. It can be draught proofed with a strip of self-adhesive Vstrip, however it is important to consider this when measuring and cutting the material.
The strip should be cut to the height of the sash with an inch extra on each side to allow for movement. The strip should be cut square and positioned so that the ends are aligned to the angle of the window sill. It is also important to make use of stainless steel screws because brass is prone to rust, and the best quality polyurethane or silicone adhesive.
Refurbishment
The Sash window is a beautiful and historic feature of many homes. They are beautiful, but they can be susceptible to issues. Common issues include rattling stuck or draughty windows. The rotted frames and the rails that meet, as and broken glazing bars, defective frames or weights that are rotten can cause issues. If these issues occur, it's time to consider repairs or replacements to your sash.
Refurbishment is more costly than replacing the sash, but it will restore your sash's look and function to the same standard as its original state. Refurbishment involves lining both the meeting rail and the sash box using traditional putty, and repairing any damage caused by decay. Re-painting the frame of the timber is also included, as well as re-glazing 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). Finally, it's recommended to put in brush pile weather strips to reduce rattle and increase insulation.
If a replacement sash required, it can be made using the same style to match your existing frame. This will help preserve the traditional style of your house. This is especially important for buildings that are listed, as any changes to the windows will require planning permission.
Check the metal tabs of the new window to the old sash prior to installing it (see below). If they're different shapes, the new sash will not fit correctly into the slots of the window frame.
It's important to decide whether to replace or repair the damaged window, since each will require a different degree and amount of knowledge. For example the case of a sash windows that has a large chunk of glass missing then a replacement will be the best option. If the glass is only damaged in a small area or a sill has begun to decay and needs to be repaired, then a repair will be better.
Replacement
Many homeowners want to keep their old sash windows in good condition, however deterioration will eventually cause problems like rattles or draughts. Broken glass can also occur. This is why replacing sash windows is often the only option to solve these issues. But there are ways to improve the sash windows that go beyond replacing them, such as installing draught proofing and secondary glazing.
Consider the extent of the issue. It may not be necessary or even necessary to replace a window. For example, a foggy glass issue is usually a problem in the sash itself and is typically a solution without having to tear out the entire frame. It is usually possible to fix a poor seal by making a few easy solutions, rather than cutting out the entire frame and replacing it.
Sash windows are extremely complex in design and feature many moving parts. It can be difficult to fix common problems such as broken panes, or sash cables that have snapped. Solving these issues usually requires taking apart the window frame, which isn't something that most homeowners want to tackle on their own. Many homeowners decide to work with a professional due to these reasons.
A professional can help restore windows made of sash back to their original glory or even bring them up to the latest energy standards. This could include reconditioning frames and installing secondary glass to block heat from getting out of the window. It is also possible to add an edge strip for brush-piles to cut down on drafts and stop the window from squealing.
To begin a repair, remove the window stops (the moldings that are in front of the lower sash). Next, remove the staff bead, then remove the lower sash. Take off the chains or cords on both sides. Finally, remove the sashweights from the bottom of the cavity for weight. Keep the hardware in a secure place. Use a heat gun to soften old, hardened filler or putty. Scrape it off with the blade of a putty. Reassemble the window. Reattach the hardware. Lubricate the pulleys using Teflon or silicone spray. Reinstall the parting beads and reinstall the upper sash.
Repair
The choice to replace or repair windows with sash is a crucial one for the homeowner. Although modern replacements can provide a host of benefits however, the original features of a home that was built earlier add personality and value to the property and are usually cheaper to repair than replacing them. Keeping them in good condition can also save energy costs. Sash windows are susceptible to rattles and drafts. This can result in higher energy bills and damage the frame and sash.
Sash windows are notoriously difficult to open and close as the traditional sliding mechanism can be displaced from its track or become draughty. It's best to leave the repair of a sash windows to professionals, as it requires a lot of dismantling. However, with the right tools and knowledge, it is possible to fix old windows using sash. Adam shows Jess the basics:
Remove any security fittings in front of the lower window sash. Then, take off the staff bead. Then, remove the bottom sash. Then, remove the cords or chains on both sides and knot them to prevent them being pulled back into the frame by the weights attached to them. It's now time to take out the upper sash. Remove the sash stops, a thin vertical strip of wood that holds the sash. Also, take off any hardware that has been painted. The sash should be pulled back to reveal the weight. It is a large iron or lead cylinder that is hidden in a cavity and is secured by an elastic cord. To stop the sash from falling into the void pierce it using a nail, and sacrifice the weight.
When the sashes are untied Clean the jamb and rails that meet, remove the glazing bars and sash cords, and scrape off any paint from the sash stops with an utility knife. Reattach the stops when the sashes are reinstalled. Use nails that are small enough not to puncture the balancing weight.
Reassemble the sash by inserting the upper sash on top of its track, then the lower sash. Make sure the sash stops are properly aligned with the frame, and reattach the beads for parting if necessary. Reattach the sash chains or cords and attach the sash pulleys.