Replacement Double Glazed Units
Over time, double-glazed units (or repair sealed unit double glazing units as they are usually called) will break down. This is usually the case due to the insulating properties of the inert gas that is between the glass panes degrade.
If a window has been damaged down, it is essential to replace it to ensure your home is properly insulated and energy efficient. The task is simple and easy.
Installation
If the window was fitted correctly, the new window should be able to fit comfortably and securely within the frame. If the new unit is not the same thickness as the old one then you may need to alter the "packers" (usually blue or red slips of plastic) inside the frame to ensure that it is properly positioned. If you're unsure of how to proceed, consult your installer or the instructions of the manufacturer for advice.
A high-quality replacement double-glazed unit is made to exacting standards, and should fit your frame with no hassle. A small error could have a major impact on your window's performance.
Modern double glazed units are a fantastic energy efficient addition to any home. They use a layer argon between the panes glass to keep them warm and decrease the amount of heat that escapes from your home in cold weather.
However, there are times when these units may fail or have problems with their seals. This happens when moisture gets into the air cavity and creates condensation. The presence of moisture in your window is not just ugly however it also decreases the efficiency of the glazed unit.
Condensation can be caused by a variety of factors and the best method to determine the cause is to look for a hazy or misty look between the windows. This indicates that the seal between the two glass panes has been broken and water is entering your living spaces.
The first step is to remove the glazing beads around the edges of your window. This can be difficult and messy but is well worth the effort because it allows you to get access to the gasket that keeps your glass in place. It is essential to remove the beads with care so they don't break. Asking for help can be a good idea at this stage. After the beads are removed, allow the sealed unit to fall back slightly out of the frame. With help from a person, keep it in place while you measure it accurately length, width and the thickness. This is important because it determines the dimensions of the wedge gasket that you need to cut for the new double glazed sealed unit.
Checking
Double glazing units or sealed units, as they are often called, can degrade over time. It is usually due to leaks in the seal that allows condensation and moisture to enter the space between the panes. This affects the ability of the window to keep cold air out, warm air generated by the home's heating in, and solar gain from the sun inside.
The failure of seals can cause draughts within the home. It is crucial to check regularly your double-glazed windows for signs of failure. If you see water or mists between the glass, it is an indication that the seal is not working and a new one should be installed.
It is crucial to replace double glazing seals the sealed unit with the correct size. The uPVC frames on which the sealed unit is placed have a very limited tolerance for movement, meaning that even a few millimetres can affect the performance of the windows. Talk to a professional or consult the instructions supplied by the manufacturer to ensure that you order the correct size.
Slide the new unit into the frame with the assistance of a partner. This must be done in a secure area as the glass may break if it falls. Once the sealed unit has been fixed to the frame, reattach any packers on the bottom of the frame and then replace the glazing beads into their original position. After you have completed this, give the entire window a visual examination to make sure there are no gaps or misalignments that could impact its performance.
It may be necessary to apply a bit of sealant to the outer edge of the frame in order to prevent it from shifting in the future. It is also a good idea to re-check the thickness of the glass unit. This is essential since double-glazed units come in different thicknesses, and using the wrong thickness can affect the u-value of your home's insulation.
Sealing
Double glazing can boost the efficiency of your home and also provide better sound insulation. However, over time the glass's seals can be damaged, resulting in misty windows and a decrease in performance. In these instances replacement is needed. It is recommended to consult a professional double glazing installer who can help you choose the appropriate glass to ensure accurate measurements and ensure proper installations.
The first thing that needs to be done when replacing a sealed unit is to clean the frame. You can use an old paint brush (4 inches is the ideal size) to sweep the frame out, removing dust and cobwebs that will have built up in the frame over time. Once the frame is clean it's best to give the seals that are new a thorough clean too. The most efficient method to do this is to pull out the Wedge gaskets by placing your fingers on the edge and pulling it out until you reach the point where it is in contact with the friction joint. Make a note of how to repair double glazing window seals long you need the new seals. This will assist when cutting them.
Installation of the sealed unit is straightforward after the gaskets and frame have been cleaned. To get the best results from this, it's best to cut off the beads (the UPVC frame clips that support the glass) and then take measurements of these. This will ensure that the seal is made according to the correct dimensions and will not leave any gaps around it.
After the beads are reinserted, you can start with the top one and work your way to the lower ones. Be cautious not to touch the sealed units for a few minutes afterward, as the silicone sealant will need some time to set and harden before you can handle it again. I usually let it sit for about 6 hours prior to handling but this could depend on the silicone sealant's setting time.
Finishing
Finishing the project and sealing it is now required once the double glazing replacement seals-glazed unit has been installed securely within its frame. This step is more than a physical conclusion to the project; it's an assurance that your house is ready to weather the elements with its new safe guardian in its place.
The first step is to clean the frame by carefully removing any glazing strips or beads that bonded the old glass. The frame is then scrubbed clean of dirt, old sealant and glazing tape. This process also renews the aluminium or timber frame. It's also a good opportunity to look over any damage and make small repairs by using wood filler or sanding when needed. For more serious damage, you should seek out a professional.
The spacer tubes are filled with desiccants to absorb any moisture trapped in-between the two glass panes in the course of manufacture or later on. This is a standard procedure for warm edge sealed units. Thermoseal Group stocks a range of desiccants as well as manual or automated dispensers of desiccant.
After the spacers are filled with glass, the frame and glass are sealed using a high-performance silicon, specifically designed to withstand Australia's tough climate. This sealant forms an airtight barrier that is extremely flexible and durable and can expand and contract without breaking. It's crucial to select the correct thickness, since any gaps can impact the thermal performance. If you're unsure of the right thickness to use you should consult an expert or the manufacturer's guidelines.
The final step is adding secondary sealant. This is usually polyisobutylene or another similar material. It's applied to the edges of the frame's exterior which creates a secondary Oven Seal Repair able to repel moisture and prevent air penetration, helping to improve energy efficiency.
The frame is coated with aluminum cladding. This is a protective coating that is able to withstand the elements, keeping your frame looking new for years to come. It is a wise investment to ensure the durability and the beauty of your home's frames, particularly if you have federation or period style homes with timber frames that are prone to decay.