Secondary Glazing For Sash Windows
Many homeowners are unable add new double glazing to their homes, either because of financial limitations or because they reside in listed buildings which prohibit any exterior changes.
Secondary glazing is an excellent alternative for sash window and can be put in various ways.
It is made up of an additional glass pane inside the existing window frame which stops cold air from getting into your home, as well as providing insulation and noise reduction.
Fixed Inserts
If you're thinking about secondary glazing for your sash windows there are many different styles you can pick from. Each style comes with its own set of benefits ranging from increased security to less condensation. Which is the most effective choice for you?
The principle behind secondary glazing is to fit an extra pane of glass within the frame of your existing window. This adds an additional layer of soundproofing and insulation, which can significantly improve your home's energy efficiency.
It's not always possible to install double-glazed windows particularly if your house is classified as a historic property or you are bound by strict planning regulations that dictate what can and can't be done to 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 people looking to update their period property without having to take down the original sash windows and replace them with contemporary ones.
There are many different options for secondary glazing on windows made of sash. Each one can be customized to fit into your existing frame. Proprietary systems usually have painted aluminium frames that are made to fit within the depth of a staff bead an existing sash window meaning that shutters and sills can still be retained.
These can be fitted with different installation methods including glazing clips or Velcro. They offer a more stylish solution than screw-fixed units, and are ideally suited to windows that aren't required to be opened regularly. You can also choose a fixed lift-out unit that can be easily removed and then reinstalled to open your windows.
Horizontal Sliders
Horizontal sliders are the most well-known method to enhance the appearance of your windows. They are also very discreet and ideal for historic buildings, conservation areas, and listed properties. They can be installed in the majority of cases without the need for access from outside since they operate from inside.
They can be operated with a hand, and they can be left open or partially opened for ventilation. They are very effective at stopping draughts and also have the added benefit of removing harmful UV light. In summer they can be paired together with a flyscreen to keep out insects and mosquitoes.
Our Trackglaze horizontal sliding system offers all the benefits of modern double glazing to your original sash windows. It consists of PVC double sliding track that runs across all four sides of cavity with a brush seal around each glass sheet and a handle for a finger pull angle to act as a hand and decrease bowing. It comes in kits of 1m or 2m track and angle that can be put together to create larger spans.
The acoustic benefits of second glazing are very important and can improve noise reduction from outside especially road, rail & airport traffic. The addition of toughened or laminated glass can further improve acoustic performance. Secondary glazing is a standard feature that can reduce outside noise to 52dB(Rw) and specialist glass like Stadip Silence Laminated Acoustic Glass can deliver even higher levels of acoustic performance.
It can improve the energy efficiency of your home by keeping it warm for longer. Repair My Windows And Doors will reduce the use of central heating. It is less expensive than replacing the original sash window, and can be installed without the need to remove the frame.
Vertical Sliders
Secondary glazing is a cost effective option which is often more manageable than full window replacement. It is also suitable for Listed Buildings & Conservation Areas. It's a great way to modernize traditional sash windows in Suffolk & Essex while retaining their character.
Vertical Sliders were specifically designed to be used in sash window applications where regular hinged panels aren't suitable. The system has two secondary sashes that are fixed one above the other within an outer frame. They are supported by spring balances that allow for ease of movement. The system is available as a face-fixed' (installed to the inside of the window) for increased thermal performance, or a'reveal fixed version, which is fitted with a glass to glass cavity, within the original window reveal, to ensure optimal sound quality.
You can pick from a variety of stop-strips and handles that meet your needs. They can be positioned in the closed position to provide additional security, or propped open for 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 glass has all the authentic wood detailing you'd expect to see in a period window. It is available in a variety of colours that will match your existing sash. It's almost impossible to distinguish from the original sash windows as details like sash horns as well as traditional butt joints are integrated into the design. It is available in many sizes and can accept glass up to 6.8mm to provide additional insulation against heat loss. The tilt-in option permits the sashes of each window to be hinged inwards on safety stays for easier cleaning.
Hinged Casement
Our single-pane secondary glass can be installed on sash windows in any style including traditional box sash and casement. The hinged units we offer are made with secure multi-point locking and can be supplied with keys and a handle for the lock. This ensures that the glazed panel is securely secured and is pulled tightly to the outer frame, forming a seal to minimize loss of heat. Hinged windows can be side-hung or top-hung and can be double-glazed. Our double-glazed Windows provide enhanced performance in terms of acoustics and are available in 43dB (for 47dB), 51dB (for 51dB) or 47dB (for 49dB).
Casement windows are able open to the outside and catch breezes at different angles. This is different from a horizontal sash window, with movable sashes in the frame that move horizontally. They can be opened from the top and bottom for controlled airflow. They can therefore improve airflow and offer a fantastic alternative to traditional sash windows.
They are often used in modern homes because they offer a few "sightlines" and unobstructed views. They can also be used in listed properties due to the fact that they do not require transoms or mullions. They're also a good option for those who live in areas that are difficult to reach as they can be opened by the twist of a handle.
This kind of window could be a disadvantage because it may limit the use of certain window treatments. They are also difficult to clean because they swing outward, and could require regular maintenance and servicing.
Lift Out Windows
Secondary glazing can be installed using a variety ways and the cost will vary depending on the thickness, type and materials you select for your frame and panes. uPVC frames are the least expensive followed by aluminium, and wooden frames. Specialized glass can also add to the price and also any additional features like security or sound reduction.
Another factor that affects the cost is the complexity of the installation. The more complicated the project will take longer and more labour will be required. This is also the case for older homes that have more intricate design of sash windows.
Analyzing the condition of windows in use is a good way to begin. You can get a reliable estimate of the cost by having them inspected by an expert.
Generally speaking, secondary glass will have a minimal impact on the overall appearance of your home. This is due to the fact that the modern FINEO double glazing has slim and discreet frame lines, so you can get the most efficient thermal performance without compromising on aesthetics.
The horizontal sliding secondary glazing is popular because it allows easy access to the sash window for cleaning or ventilation. These windows also come with a tilt function, which can be activated by releasing the catch and raising the secondary glazing panel vertically up to a certain level. This is perfect for windows that aren't opened very often. It can also be used to permit air conditioning access in bay windows. You can also make use of them to open the middle sash on the traditional sash bay windows to create a more uniform look.