Secondary Glazing For Sash Windows
Many homeowners aren't able to install double glazing to their house, either because of financial limitations or because the building is listed and any modifications to the exterior are not permitted.
Secondary glazing is a fantastic alternative to
sash window locks with key windows. It can be put in various ways.
It's an additional glass pane inside the existing window frame which stops cold air from entering your home, while offering insulation and noise reduction.
Fixed Inserts
There are many different types of secondary glazing that are available for sash windows. Each comes with its own set of advantages, from increased security to less condensation. Which one is the best option for you?
The principle behind secondary glazing is to fit an extra pane of glass within the frame of your existing window. This creates an extra layer of soundproofing and insulation, which can dramatically improve your home's energy efficiency.
It's not always possible to add double-glazed windows, particularly if you live in classified as a historic property or you are bound by strict planning regulations that dictate what can and cannot be done to your exterior.
In these instances, secondary glazing is a great alternative that can be put in easily. It's a popular choice for those who want to modernize their home without having to replace the original sash window with an updated version.
There are a number of different systems available for
secondary glazing sash windows, all of can be customized to fit your existing frame. The proprietary systems are typically made of painted aluminum frames that fit the existing depth of the staff bead on windows with sash. This lets shutters and sills remain.
They can be fitted with a variety of installation methods such as glazing clips and Velcro. These are more appealing than screw-fixed ones and are ideally suited to windows that don't need to be opened frequently. Alternatively, you can choose a fixed lift out unit, which 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 sought-after way to improve existing sash window. They are also discrete and are ideal for historic homes or conservation areas as well as listed property. They can be installed in the majority of cases without the need for access from outside because they are operated from inside.
They are easy to operate using a hand, and can be opened wide or left partially open for ventilation. They are effective at stopping draughts and also block harmful UV light. In the summer, they can be used with a flyscreen to keep out insects and mosquitoes.
Our Trackglaze horizontal sliding system offers all the benefits of modern double glazing for your classic
sash window replacement windows. It is comprised of PVC double sliding track that runs across all four sides of the cavity and a simple brush seal around each sheet of glass and a handle for a finger pull angle to act as a hand and reduce bowing. It is available in kits comprising either 1m or 2m lengths of track and angle that can be joined to create larger spans.
The acoustic benefits of second glazing are extremely significant and can dramatically reduce noise from outside especially railway, road and airport traffic. The addition of laminated glass or toughened glasses improves the acoustic performance. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, such as Stadip Silence Laminated Acoustic Glass, can achieve even more impressive levels of acoustic efficiency.
It can increase the energy efficiency of your home by keeping it warmer for longer. This will decrease your reliance on central heat. It's much less expensive than replacing your original sash windows, and can be installed without the need to remove the window or door frame.
Vertical Sliders
Secondary glazing is a cost-effective choice that is usually easier to manage than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's the ideal option for upgrading traditional windows made of sash in Suffolk & Essex with modern insulation benefits while retaining the character of older homes.
Vertical Sliders were developed to be used in sash window applications where regular hinged panels aren't suitable. The system features two secondary sashes that are secured one above one within an outer frame. They are supported by spring balances, allowing for ease of movement. The system can be put on the inside of an existing window for better thermal performance or fitted with an opening between the frame and the glass to maximize acoustic properties.
They can be equipped with a variety handles and stop strips to meet the needs of the homeowner and can be used to prop open the top or bottom pane to let in air, or they can be secured in the closed position to provide security. They can also be fitted with an insulating seal bristle to prevent draughts.
Imagine a vertical slider with 'Choices' secondary glazing has all the authentic timber detailing you'd expect from a period window treatment and comes in an array of colours to match your existing sash. It's nearly impossible to distinguish from original sash windows as details like sash horns and traditional butt joints are included in the design. It is available in various sizes and can be fitted with glass up to 6.8mm to provide additional insulation against heat loss. The tilt-in feature allows the sashes of each window to be hinged backwards on safety stays to facilitate cleaning.
Hinged Casement
Our single-pane secondary glazing is able to be installed on
sash style double glazed windows windows in any style including traditional box sash and casement. Our hinged units can be equipped with a keylock handle and are made with multi-point locking. This ensures that the glass panel is secured securely in place and is pulled tight to the outer frame, creating a seal to reduce heat loss. Hinged windows can be top-hung or side-hung, and they can also be double-glazed. Our
double glazed sash windows for listed buildings-glazed Windows provide enhanced sound insulation and are available in 43dB (for 47dB) and 51dB (for 51dB) or 47dB (for 49dB).
Casement windows can open outwards and catch breezes at different angles. This is in contrast to a the horizontal sash window, with movable sashes in the frame that move horizontally. They can also be opened from the top and bottom for controlled ventilation. They can therefore increase airflow and offer a fantastic alternative to traditional sash window.
They are often employed in modern homes since they offer a few "sightlines" and unobstructed views. They can also be used in listed properties because they don't require transoms or mullions. They can also be utilized in places that are difficult to reach since they can be opened by turning the handle.
The primary drawback to this kind of window is that it can block large openings and may restrict the use of certain window treatments. They can also be difficult to clean since they swing outward, and could require regular maintenance and service.
Lift Out Windows
Secondary glazing can be put in in a variety of ways and the cost will vary according to the type, thickness and the materials you select for your panes and frame. UPVC windows are generally the least expensive followed by aluminium and then wooden window frames. Specialised glass, as well any additional features like security or sound reduction can also increase prices.
The complexity of the installation will impact the cost. The more complicated the project, the longer and more labor it will require. This is also true for historic properties with more complex sash windows, which require specialist knowledge and expertise.
Analyzing the condition of windows in use is a good place to begin. You can get a precise estimate of the cost by having them examined by professionals.
Generally speaking, secondary glass will have minimal impact on the overall appearance of your home. Modern FINEO double-glazing features thin and discrete frame lines. This lets you achieve thermal efficiency without compromising aesthetics.
A popular option for secondary glazing is horizontal sliding, which provides easy access to your windows that are already sash for cleaning or ventilation. You can also get them with a tilt function, which you can activate by releasing the catch on the secondary glass panel and then lifting it vertically until you reach a predetermined point. This is ideal for windows that aren't frequently opened. It can also be used to allow air conditioning access to bay windows. It is also possible to use them to open up the middle sash of a traditional sash bay window to create a more symmetrical look.
