Sash Windows Repair and Replacement
Older sash windows can suffer from a range of issues, including draughts rattles, and inadequate insulation. With a little attention they can be repaired to their original performance.
First, cut off the seal of paint using an utility knife. Remove the staff bead, then pull out the upper sash, and remove any cords or chains. Store the hardware in a container with an identification label.
Sealing
Sash windows are gorgeous in older buildings, however they require regular maintenance. They are susceptible to problems like wet-rot cracked putty, and draughts. It is possible to minimize energy loss and increase the efficiency of sash windows by replacing, repairing or sealing them.
Draughts are mainly caused by gaps between the sash and the frame. They can also cause rattles and reduce sound-proofing. Various methods can be used to limit air leaks within the sash window, such as sealing beads, special products and secondary glazing.
A gap between the top and bottom of the sash and the jamb frame is a common problem. This can lead to moisture leaking into the wood, rotting it and growth of mold. Seal the gap using silicone, polyurethane or foam sealant.
If a gap is preventing windows from opening and closing without a hitch, it might be necessary to put in new sash runners or spring bronze. These are bronze strips that are stapled or nailed to the edges of the lower sash to stop sideways rattle, and they are available from DIY stores. Weatherstripping made of window repairs Kettering can also be used, but it is more likely to tear and may alter the look of your window.
When installing replacement sash runners it is essential to take full measurements of the window opening. It is recommended to measure from the top of the sash to the horizontal centerline of the rail that connects it and from the bottom of the sash down to the sill. These measurements can be incorporated into the new runners, which will help ensure a good fit and better operation of the window.
In older buildings the gap between frames and sash is typically greater around the leading edge. It can be draught-proofed using a strip of V-strip that is self-adhesive. However it is crucial to take this into consideration when measuring and cutting material.
A strip must be cut to the length of the sash, and with an extra inch each side to allow to allow for movement. It should be trimmed square and placed so that the ends are matched to the angle of the window sill. It is also important to make use of stainless steel screws as brass can rust, and the best quality silicone or polyurethane adhesive.
Refurbishment
The sash window is an elegant, historic feature of many homes. But despite their beauty, windows like sash windows can be prone to a range of issues. Common problems include rattling, stuck or draughty windows. Frames that are rotting and rails that connect them, as along with broken glazing bars, faulty frames or weights that are rotten are all causes of problems. If you encounter any of these problems, it is time to replace or repair your sash.
Refurbishment may be more expensive than replacing the sash, but can bring back the appearance and function to the same level as its original state. It involves lining the joining rail and sash boxes with traditional putty, and then repairing any damage caused by rot. It also involves painting the timber frame and re-glazing with 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 put in brush pile weather strip to reduce the noise of rattling.
If a replacement sash is required it can be constructed using the same design to match your old frame. This will maintain the traditional style of your house. This is particularly important for buildings that are listed, as any changes to the windows will require planning permission.
Compare the metal tabs of the new window with those of the old sash prior installing it (see below). If they're different shapes the new sash may not fit in the window frame slots.
It is crucial to determine whether to repair or replace a damaged window, as each option will require a different degree and cost of knowledge. For example, if a sash window has a large chunk of glass that is missing, then replacement is the best option. If the glass is only damaged in a small region or a sill has begun to decay, then a repair would be more appropriate.
Replacement
Many homeowners want to keep their old sash windows in good condition, but deterioration will eventually cause problems like rattles or draughts. Broken glass can also occur. This is why replacing them is often the only solution to these problems. There are other ways to improve the performance of sash windows than simply replacing them. They can be improved by the installation of secondary glazing and draught-proofing.
Take note of the severity of the problem. It might not be necessary or even appropriate to replace a window. For instance, a foggy glass issue usually occurs in the sash itself and is usually able to be resolved without tearing out the entire frame. A weak seal can often be remedied by making a few minor adjustments instead of a costly full frame tear-out and replacement.
Sash windows feature a complicated design with many moving parts. It can be a challenge to fix common problems like cracked panes or sash cables that have snapped. Solving these issues usually requires removal of the window frame which isn't something that the majority of homeowners would like to tackle themselves. For these reasons, many choose to work with an expert.
A professional can help restore sash windows to their original splendor or even bring them up to current energy standards. This could include reconditioning the frames and installing secondary glazing, which will stop heat loss out of the window. It is also possible to put in a brush pile strip to stop rattling and reduce drafts.
To start a repair project start by removing the window stops (the moldings that are in front of the lower sash). Then, loosen the staff bead, then remove the lower sash. Remove the chains and cords from both sides. Then take the sashweights out of the bottom weight cavity. Place the equipment in a secure location. Soften any old filler, hardened putty, or filler by using a hot gun. Then scrape it away using a putty knife. Reassemble the window. Reattach the hardware. Lubricate the pulleys using Teflon or silicone spray. Install the parting beads again and then reinstall the upper sash.
Repair
It is essential for the homeowner to make a decision on whether to replace or repair their sash windows. Modern replacements offer many advantages however, the original features in an older house can add character and value. They are also cheaper to repair than replacing. Maintaining them in good condition can also save energy costs. Sash windows can be susceptible to drafts and rattles. This can lead to higher energy bills and damage the frame and the sash.
Sash windows can be a challenge to open or close. The mechanism that slides can become sloppy or draughty. Repairing a sash window requires extensive removal of the frame of the window and should be left to the professionals. However, with the right tools and knowledge it is possible to fix old windows with sash yourself. Adam shows Jess the basics:
Making the window come apart begins with the removal of any security fittings that are in front of the lower sash. Then, take off the staff bead. Finally, pull out the bottom sash. Then, remove the cords or chains on both sides and knot the ends to stop them from being pulled back into the frame by the weights attached to them. It's time to take off the upper sash. Take out the sash stops and a thin wood strip that holds the sash. Also, take off any painted-covered hardware. The sash should be pulled back to reveal the weight. It is a large iron or lead cylinder that is concealed in a cavity, and supported by a cord. To stop the sash falling into the void pierce it with a nail and sacrifice the weight.
After the sashes have been removed, clean the jambs and the rails that meet. Remove the glazing bars and the cords for the sash. Then, using a utility blade take off any paint that is on the sash stop. Reattach the stops after the sashes have been reinstalled. Use nails that are not large enough to puncture the balancing weight.
Reassemble the sash by inserting the upper sash first on its track, then the lower sash. Make sure that the sash stops and the frame are aligned properly. If needed, reconnect any beads that are parting. Then, reconnect the sash cords or chains and then re-attach the sash pulley axles.