Secondary Glazing For Sash Windows
Many homeowners are unable add new double glazing to their homes due to financial limitations or because they live in listed buildings that restrict any modifications to the exterior.
Secondary glazing is a fantastic alternative to sash windows and can be put in various ways.
It consists of an extra pane of glass within the window frame that blocks cold air from entering your home, as well as providing insulation and noise reduction.
Fixed Inserts
There are many different types of secondary glazing for sash windows. Each style comes with its own set of benefits including increased security and less condensation. Which is the most effective option for you?
The principle behind secondary glazing is the installation of an additional glass within your window frame. This adds a layer of insulation and noiseproofing your home, enhancing its energy efficiency.
It's not always practical to add double-glazed windows, particularly if your house is a listed property or you are bound by strict planning regulations dictating what can and cannot be done to your exterior.
Secondary glazing is an excellent alternative in these instances. It can be put in relatively easily. It's also a popular option for people looking to update their home without having to take down the original windows with sash and replace them with contemporary ones.
There are many different systems available for secondary glazing sash windows, all of which is configurable to suit your frame. Proprietary systems are usually comprised of painted aluminum frames that fit the existing depth of the staff bead on a sash window. This lets shutters and sills be kept.
They can be fitted with different installation methods including glazing clips or Velcro. These types of units look more attractive than screw-fixed ones and are ideal for windows that do not need to be opened often. You can also choose an unfixed lift-out unit that can be easily lifted out and reinstalled to open your windows.
Horizontal Sliders
Horizontal sliders are the most popular method of enhancing the appearance of a windows with sash. They are also quiet and suitable for older homes as well as conservation areas and listed properties. In most cases, they are installed without having access to the outside since they are operated from the inside.
They can be operated manually, and they can be left open or partially opened for ventilation. They are very effective at getting rid of draughts, and they also have the benefit of blocking harmful UV light. In summer they can be paired with a flyscreen in order to keep out insects and mosquitoes.
Our Trackglaze horizontal sliding systems offer all the advantages of modern double glazing to your traditional windows made of sash. It is comprised of PVC double sliding track that runs across all four sides of 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 comes in kits of 1m or 2m of track and angle that can be put together to create larger spans.
Secondary glazing can have a significant effect on noise reduction, especially for rail, road and airport traffic. The addition of laminated or toughened glass further enhances the acoustic quality. Standard secondary glazing reduces outside noise to 52dB (Rw) and specialist glass, like Stadip Silence Laminated Acoustic Glass can provide higher levels of acoustic performance.
It can boost the energy efficiency of your home by keeping it warmer for longer. This will reduce the use of central heating. It's much less expensive than replacing your sash windows and can be installed almost everywhere without the need to remove the existing window or door frame.
Vertical Sliders
Secondary glazing is an affordable option that is usually easier to manage than full window replacement. It's suitable for Listed Buildings & Conservation Areas. It's a great option to replace sash windows in Suffolk & Essex with modern insulation benefits while keeping the traditional look of older homes.
Vertical Sliders were specifically designed for sash window applications where regular hinged panels are not suitable. They have two secondary sashes which are secured to one sash over the other, within an outer frame and are supported by robust spring balances to allow for easy movement. The system can be put on the inside of a window to provide greater thermal efficiency, or it can be fitted with a space between the frame and the glass for optimum acoustic properties.
You can choose from a range of stop-strips and handles that meet your needs. They can be put in a closed position for additional security, or propped open to allow ventilation on the glass's top or bottom. They can also be fitted with an insulating seal bristle to prevent drafts.
'Choices' Imagine vertical slider secondary glazing sash windows glazing comes with all the timber-like details you'd expect from an antique window treatment. It's also available in an array of colours to match your existing sash. It's difficult to distinguish from the original sash window with details such as sash horns & traditional butt joints being incorporated into the design. It is available in various sizes and can accept glass up to 6.8mm to provide additional insulation against heat loss. A tilt-in option is available that allows the individual sashes to hinge into the safety stays to aid in cleaning.
Hinged Casement
Our single-pane hinged secondary glazing can be incorporated into windows made of sash in any style such as casement and traditional box sash. Our hinged units are manufactured with a secure multi-point locking system and can be supplied with keys lock handles. This ensures that the glazed panel is locked securely in place and pulls tight to the outer frame, creating a seal to minimise heat loss. Hinged windows can be top-hung or side-hung, and they can also be double-glazed. Our double-glazed windows provide enhanced audio-acoustic performance. They are available in 43dB, 47dB or 51dB.
Casement windows are able to open outwards and catch breezes from different angles. This is unlike horizontal sash window, with movable sashes in the frame that move horizontally. They can also be opened from both the top and bottom for controlled airflow. They are therefore able to improve airflow and are a great alternative to traditional sash windows.
They are used in modern homes due to their small "sightlines" that allow for unobstructed view, but they can also be installed in listed homes since they do not require mullions and transoms. They can also be utilized in places that are difficult to reach since they can be opened simply by turning a handle.
This kind of window can be a drawback since it can restrict the use of certain window coverings. They are also difficult to clean as they swing outward, and may require regular maintenance and servicing.
Lift Out Windows
Secondary glazing can be put in with a variety of methods and the price will vary depending on the thickness, type and materials you select for your frame and panes. UPVC windows are generally the most affordable followed by aluminium and then wooden window frames. Specialised glass can also increase the cost and include extra features, such as security or noise reduction.
The complexity of the installation will also impact the cost. The more complex the project is, the more time and labour will be required. This can also apply to heritage properties with more complex sash window locks with key windows that require specialist knowledge and expertise.
The best place to begin is to evaluate the condition of your existing windows. You can get a reliable estimate of the cost by having them inspected by professionals.
In general, secondary glazing will have little impact on the overall look of your home. Modern FINEO double-glazing is thin and discrete frame lines. This lets you get the most efficient heat without compromising aesthetics.
The horizontal sliding secondary glazing option is popular due to its easy access to the sash window for cleaning or ventilation. These windows also come with a tilt feature, which can be activated by unlocking the catch and raising the secondary glazing panel vertically to a predetermined degree. This is a great option for windows that don't get opened very often. It can also be used to allow air conditioning access in bay windows. You can also use them to open the middle sash in a traditional sash Bay Window to create a more symmetrical appearance.