So You ve Purchased Sash Window Repair ... Now What

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Sash Window Repair

Sash windows can get out of balance and crack. Pam scours the web for salvaged, wavy glass and is always looking for scraps of sash weights made of metal. She then looks for replacements, such as washers or nuts, to help balance her window.

Pam will set each pane by putting a rope of glazing material into the rabbet groove, or pocket around the opening. This reduces drafts and prevent costly heat loss.

Sticking Sashes

If your double glazed window repairs-hung window becomes stuck in the middle, it's an absolute nightmare. You'll lose sight in the event that they shake during a thunderstorm. A window that's too loose could let in air and noise which could increase your energy costs. Both scenarios are not ideal, but they can be rectified by using the proper tools and persistence.

A common issue with old weighted sash windows is that paint may accumulate in the channels they slide over, causing them jam. Fortunately, the majority of issues with this can be resolved by cleaning and lubricating the tracks.

Begin by removing the old caulking that was between the window stop (the interior one) and the window frame. Then scrape off any paint that has accumulated. Be sure to make use of a sharp blade and set up sheets of plastic and a vacuum cleaner right below to catch any paint dust and chips.

You can then clean the tracks using a dry cloth, and apply an oil based on silicone to make them more gliding. This lubricant is sold in a majority of home improvement stores or online. You can test it by moving the sash either upwards or downwards.

If it continues to block, the sash cable may be defective. Check to see whether the cord is catching or hanging from the sash, or has snapped completely. You'll need to re-cord your window if this is the situation.

Another possible reason for a jam is the pin that holds the rail in place has slipped out. It can be difficult to repair, and you'll have to contact an expert in most cases.

If a pin doesn't fall out but the wood has become swollen or warped it's recommended to apply a wood hardener to it. The liquid is quick drying and can restore damaged wood. You won't have to take out the windows on your sash to repair them. Once you've used it, you should be able to pry the two sashes apart by placing a block of wood on the bottom corner where they meet, and tapping it lightly using an hammer.

Draughts

Draughts can be a major issue for old sash windows particularly in winter months. They can be caused by decaying wood, cracked putty or worn sash cords. This can allow cold air to get inside the window, making it more difficult to heat your home. There are several things you can do to prevent draughts from entering your windows with sash, for example, filling any gaps with expanding foam or strips to prevent draughts. These can purchase at many hardware stores. They can be very effective, but they'll need to be replaced regularly because the foam expands and wears away with time.

A more permanent option is Gapseal, which is a spongy rubbbery seal that can be cut to size and insert into the gaps between the sash window frame. It can be applied on its own or with adhesive strips placed on the top and bottom of the frame. This option is quite costly and must be reapplied over the time of your windows' lifespan, but it is a long-term solution and is easy to take off when you wish to open the window.

Another popular DIY draught proofing solution is to use cling film that is scrunched up and put into every gap around your window. This is a great way to stop draughts however it could also block the sash's movement and cause a fire. The sash needs to be removed to reopen the window, and the clingfilm must be to be applied every time the sash is closed.

A more cost-effective solution is to have your sash windows professionally draught proofed as part of a complete refurbishment service. This could include the installation of new sash strings parting beads and staff beads in addition to the lubrication and rebalancing the weights, as well as the fluidization and rebalancing of the pulley wheel. It may also include staining or painting of the frames and sashes. This can help to restore the function of the sash, and increase its energy efficiency, in addition to fixing any minor wood defects. It is much less disruptive than replacing windows altogether and will significantly reduce draughts and improve your home's thermal efficiency.

Decay

The good news is that sash window frames are not beyond repair if they have been damaged or deteriorated. The frames of these windows are generally constructed of high-quality wood. If you can restore them properly, they can be restored to provide high performance for many more years. Regular inspections are essential in ensuring that the wood is adequately ventilated. This will help prevent the build-up of moisture that could cause wood decay.

The majority of issues that arise with sash windows are easily evident, but some are more difficult to identify. Particularly, decay of wood is a very difficult problem to address because fungus eats away at the wood. It is possible to repair wood that is rotten, but the best way to stop further decay is to ensure the timber is dry.

First, take off any paint from the hardware. It is possible to remove the bottom rail from the frame and also the rail that joins it (this will depend on the position of the sash). You'll then have to take off the "pocket covers" that are pieces of wood in the side of the frame lower down that provide access to the weights (the partsing beads run along the middle of them). They can be fixed by nailing them in place and then securing them with paint, so you will probably need to use an instrument to break them loose. Once the pockets have been removed, you can start chiseling out any wood rot and apply a high-quality, water-resistant filler. After the wood filler has dried it is recommended that a primer coat be applied to stop further decay.

It is an excellent idea to examine the sash weights inside the window too to ensure that they are balanced and installed not misaligned or pulling one side more than the other. The sash can slide off the track if it is not balanced. This could cause the frame to break or be damaged. The sash weights can be replaced with new ones or a new mechanism for balancing can be installed, which will stop the sashes from bouncing to the wrong side of the window frame.

Poor Security

Over time sash windows are exposed to the elements and prone to deterioration from weather and general wear. As time passes, this could lead to timber decay which is then required to be replaced, an expensive repair that has to be addressed as quickly as is possible. Wood decay can be spotted by water marks beneath the window, or the frame becoming soft to touch. A professional consultation will be required to determine the condition and recommend any necessary sash window repair work.

In time the rails at the bottom can also be damaged. The sill may show water marks or a window that is soft to the touch may be an indication of this. A professional consultation will be required to assess the situation and recommend any repair or replacement of window sash components.

It is a major concern when double and triple glazing windows begin to let noise pollution back into your home. If this occurs, the structural integrity may be at stake and the sash window may require replacement.

A typical sash repair issue is when the sash gets stuck in the frame. It could be due to a snapped sash cord or it could be the result of an issue with the sash's ratchets. If the problem is related to the sash rats, a bit of gentle pressure is usually enough.

This problem can be resolved by taking off the sash and cleaning the tracks. Once the tracks are clean remove any security fittings that could be present, and then removal of the sash cords as well as chains will allow the sash be removed. A draught seal can then be placed around the staff bead in order to reduce the appearance of the paint finish. Decorators caulk can be used to fill the gap between the sash's sash box and the sash. This will improve the efficiency of the sash and also reduce the risk of draughts.