Sash windows are not only timeless but elegant for any home. In this short article, you will learn everything there is to know about sash windows, including their styles, restoration, history, when to replace and even how to choose the best sash for you. As such, if you are renovating a Victorian, Regency, or Georgian property, then sash windows should be at the top of your shopping list.
What Are Sash Windows and How Do They Work?
The term ‘Sash’ simply refers to a single glazed frame. For example, the traditional sash sliding window features 2 sashes that slide up and down. The windows work by using counterweights made of either lead, cast-iron, or steel to balance the sash. The counterweight is hung on a cord which is hidden within a hollow box frame. Insulation may be retrofitted in the pockets, especially in older windows.
This traditional design is most common in Victorian and Georgian properties. However, they were also used in different homes in the late Edwardian era.
Sash Window Styles
If you decide to design your home for a certain period of time or simply replace windows in an old property, it is important to get the period correct. That is because, over the years, there have been many developments and style changes in sash windows.
It is important to note that sashes traditionally consist of several small panes. These pieces are held together with glazing bars or astragal bars, which creates a larger glazed area. That is because, at the time these windows were made, glass advancements did not allow large areas of clear glazing.
Should You Replace or Repair Sash Windows?
It is not wise to replace or remove the original period timber with new models. As such, you should consider restoring the original and waterproofing existing sashes where possible. The benefits of doing this include:
- It makes a house retain its original character and charm
- Original timbers often are of better quality than what you can purchase today
- Homeowners get the benefit of improved thermal performance. This is because of the double glazing and draught-proofing when glazing is replaced and the box frame retained. Acoustics are also improved: check out Auricl for ideas on this.
The Cost of Replacing and Restoring Sashes
If the original frame is salvageable glazing can be replaced in a sash window. On the other hand, if the frame can be renovated back into good condition, single glazed panels can be upgraded into slim double glazed panels. New sashes can be fitted into existing frames where experts estimate the cost to be about £1,000 per window.
The Materials Available for a Sash Window Replacement
- Timber Sash Windows
If you are living in a conservation area, or are simply a traditionalist, then timber sash windows should be your first choice. As a matter of fact, they should be your only choice. In this situation, plastic cannot create the same effects as timber. Timber sash window benefits are:
– Excellent insulator
– Last long, if maintained properly
- PVCu Sash Windows
PVCu is a wood substitute, and often seen in white. However, it is available in a wide range of colours and finishes, which includes a photo-effect wood finish. Its benefits are:
– Energy-efficient, but cannot be recycled
– Need low maintenance • Composite Sash Windows
Composite sash windows are increasing in popularity. Latest productions have timber on the interior and exterior includes an aluminium cladding. Its benefits are:
– Exterior parts are needs extremely low maintenance – It retains the classic wood look on the inside • Sash Windows Single Glazing
Because of modern building regulations, it is near impossible to have a building with only a single glazed window, especially in new buildings. However, it is possible to install a single glazed window when it comes to renovations.
- Sash Windows Double Glazed
There is a way to effectively recreate fine glazing bars because dividing small units of double glazing with thick bars tends to give a clumsy look. The way to achieve the best look is by bond mocking bars onto either side of a double glazed unit. You can also include spacers bars between the glass sheets to add to the effect.
- Sash Windows Triple Glazed
This option is available in traditional styles. However, triple-glazed windows come at a high cost, even though many say that triple-glazing no longer carries the cost stigma that it had a few years ago.