What Is Secondary Double Glazing?
Secondary double glazing is an additional layer of glazing installed on the inside of an existing single-glazed window. It involves fitting a second pane of glass or acrylic to the inside of the window frame, creating a sealed air gap between the two panes. This air gap acts as insulation, reducing heat loss and noise transmission, making it an effective way to improve the energy efficiency and sound insulation of a property.
Secondary double glazing is often used in older properties with original sash windows, where replacing the windows with double glazing would be expensive and may not be permitted due to planning or conservation restrictions. It is also a popular choice for listed buildings, where preserving the original character and appearance of the windows is important.
There are various types of secondary double-glazing systems available, including fixed, hinged, and sliding panels. Fixed panels are permanently attached to the window frame, while hinged and sliding panels can be opened for ventilation. Secondary glazing can be made from a range of materials, including timber, aluminum, and UPVC, and can be customized to match the existing window frame.
Overall, secondary double glazing is a cost-effective way to improve the energy efficiency and sound insulation of a property, without compromising on the original appearance of the windows. It is a popular choice for older properties and listed buildings, where preserving the original character is important.
FAQ’s
What is the cost of adding secondary glazing to sash windows?
The cost of adding secondary glazing to sash windows can vary depending on the size of the window and the type of secondary glazing being used. At Sash Window Refurbish, on average, the cost can range from £200 to £500 per window.
What are the benefits of using magnetic secondary glazing on sash windows?
Magnetic secondary glazing is a popular option for sash windows as it is easy to install and remove. It provides an additional layer of insulation, reducing noise and heat loss. It can also improve the security of the window.
How much does it cost to install DIY secondary glazing on sash windows?
DIY secondary glazing kits can be purchased for as little as £30 per window. However, the cost can increase depending on the size of the window and the type of kit being used. It is important to note that DIY installation may not be as effective as professional installation.
What are the disadvantages of using secondary glazing on sash windows?
One of the main disadvantages of using secondary glazing on sash windows is that it can affect the aesthetic appearance of the window. It can also be difficult to clean and maintain. Additionally, it may not provide the same level of insulation as double glazing.
Can you install secondary glazing on sash windows that already have double glazing?
Yes, it is possible to install secondary glazing on sash windows that already have double glazing. This can provide an additional layer of insulation and improve the energy efficiency of the window.
Is it worth investing in secondary double glazing for sash windows?
It depends on the individual circumstances. Secondary glazing can provide a cost-effective solution for improving the insulation and security of sash windows. However, it may not be as effective as double glazing and may affect the aesthetic appearance of the window. It is recommended to consult with a professional to determine if secondary glazing is the right option for your sash windows.
