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Secondary Glazing For Sash Windows

Many homeowners aren't able to install double glazing to their home, either due to financial constraints or because the building is listed and modifications to the exterior are forbidden.

Secondary glazing is a great alternative to sash windows. It can be put in various ways.

It's an additional pane of glass within the window frame, which blocks cold air from getting into your home, while providing insulation and noise reduction.

Fixed Inserts

If you're considering secondary glazing for your sash windows, there are a variety of styles to pick from. Each comes with its own set of benefits, from increased security to less condensation. Which is the most effective option for you?

The fundamental idea behind secondary glazing is to install an additional glass into your existing window frame. This provides an additional layer of insulation and noiseproofing your home, enhancing its energy efficiency.

It's not always possible to install double-glazed windows particularly if your house is an listed property or if you are bound by strict planning regulations dictating what can and can't be done with your exterior.

In these situations, secondary glazing is a fantastic alternative that can be put in with relative ease. It's also a popular choice for those who want to modernize their old home without having to tear down the original sash windows and replace them with modern ones.

There are a number of different options available for secondary glazing sash windows, each of which is configurable to suit the frame you have. The proprietary systems are typically comprised of painted aluminium frames that fit into the existing staff bead depth on the sash window. This allows sills and shutters to be retained.

They can be fitted with a variety of installation methods, including glazing clips or Velcro. They provide a more attractive alternative to screw-fixed units and are particularly suited to windows that aren't required to be opened often. Alternately, you can opt for a fixed lift out unit that can be lifted and put back in place with relative ease to allow your windows to be opened.

Horizontal Sliders

Horizontal sliders are the most popular method to enhance the appearance of your windows. They are also very discreet and suitable for older structures, conservation areas and listed properties. They can be installed in most cases without the need for access from outside because they are operated from inside.

They can be operated by hand, and they can be left open or partially closed for ventilation. They are very effective at getting rid of draughts, and they also have the benefit of removing harmful UV light. In the summer, they can be used with a flyscreen in order to keep insects out and mosquitoes.

Trackglaze horizontal sliding systems provide all the advantages of double glazing for the original sash window. It consists of PVC double sliding track on all four sides of the cavity with a brush seal around each sheet of glass and a finger pull angle handle to function as a hand and decrease bowing. It is available in kits comprising either 1m or 2m lengths of track and angle that can be butted together to create larger spans.

Secondary glazing can have a significant effect on noise reduction, especially for road, rail and airport traffic. The use of laminated glass or toughened glasses enhances the acoustic performance. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, like Stadip Silence Laminated Acoustic Glass, can achieve even higher levels of acoustic performance.

It can increase the efficiency of your home by keeping your house warmer for longer and decreasing dependence on central heating. It is much cheaper than replacing sash cords your original sash windows and is installed without the need to remove the window or door frame.

Vertical Sliders

Secondary glazing is a cost-effective option that is usually more manageable than a complete window replacement. It's also suitable for Listed Buildings & Conservation Areas. It's a great option to upgrade sash windows in Suffolk & Essex with modern insulation benefits while retaining the character of older homes.

Vertical Sliders are specially designed for sash windows, where regular hinged panels aren't appropriate. They come with two secondary sashes which are secured with one above the other, within an outer frame. They are supported by sturdy spring balances for ease of movement. The system can be placed on the inside of an existing window for better thermal performance, or it can be fitted with a space between the frame and the glass to ensure the best acoustic performance.

You can pick from a range of stop-strips and handles that meet your needs. They can be positioned in a closed position for extra security or propped open for ventilation on the glass's top or bottom. They can also be equipped with an insulating bristle seal to prevent drafts.

The 'Choices' vertical slider secondary glass has the same authentic wood details you'd expect to see in a period window treatment. It comes in a variety of colours that are compatible with your sash. It's difficult to tell apart from the original sash window with details like the sash's horns and traditional butt joints included in the design. It's available in a wide selection of sizes and will accept glass up to 6.8mm to add insulation to prevent loss of heat. A tilt-in option is available to allow the individual sashes to hinge inward on safety stays to aid in cleaning.

Hinged casement window sash

Our single-pane hinged secondary glazing can be fitted to windows made of sash in any style, including casement and traditional box sash. Our hinged units are manufactured with a secure multi-point locking system and can be supplied with keys and a handle for the lock. This combination ensures that the glazed panel is securely locked in place and is pulled tightly to the outer frame, forming a sealing to reduce heat loss. Hinged windows can be top-hung or side-hung, and they can also be double-glazed. Double-glazed windows provide better acoustic performances and are available in 43dB (for 47dB), 51dB (for 51dB) or 47dB (for 49dB).

In contrast to horizontal sash windows with movable sashes that slide horizontally within the frame, casement windows are able to open outwards and let in breezes from different angles. They can be opened from the top and bottom to allow controlled airflow. This is why they can increase airflow and are a viable alternative to traditional windows with sash.

They are often used in modern homes because they offer small "sightlines" and unobstructed views, but can also be fitted into listed properties because they don't require transoms or mullions. They can also be utilized in hard-to-reach places as they can be opened simply by turning the handle.

The primary drawback to this kind of window is that it could block off large openings, and could limit the use of certain window treatments. They can also be difficult to clean since they swing outward and could require regular maintenance and servicing.

Lift Out Windows

Secondary glazing can be put in in a variety of ways and the cost will vary according to the thickness, type and materials you select for your panes and frame. UPVC frames are the cheapest expensive, followed by aluminium and then wooden double glazed sash windows frames. Specialized glass, in addition to any additional features like security or sound reduction may also increase prices.

Another aspect that can affect the cost is the complexity of the installation. The more complicated the installation will take longer and require more labour it will take. This is especially the case for older homes that have more complex sash window designs.

Assessing the condition of windows in use is a good way to start. The survey conducted by an experienced professional will give you an accurate estimate of what the price might be.

In general secondary glazing has an insignificant impact on the look of your home. Modern FINEO double-glazing is thin and subtle frame lines. This lets you achieve thermal efficiency without compromising aesthetics.

The horizontal sliding secondary glazing is popular because it allows easy access to the existing sash window for cleaning or ventilation. These are also available with a tilt feature which can be activated by unlocking the catch and raising your secondary glazing panel vertically up to a certain point. This is great for windows that aren't used frequently and can be used to allow access to air cooling in bay windows. It is also possible to use them to open up the middle sash of the traditional sash bay windows to create a more uniform look.