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Replacement Double Glazed Units Over time, double-glazed units (or sealed units as they are commonly called) will break down. This usually happens because the insulating properties in the inert gas between the glass panes break down. If a window has fallen down, it's crucial to replace the unit to ensure that your home is properly insulated and energy efficient. The process is fairly simple and straightforward. Installation If the window was fitted correctly, the new window will fit snugly and securely inside the frame. If the new glazed panel is not the same thickness as the old one, you may have to adjust the 'packers (usually blue or red plastic slips) in the frame. Ask your installer for instructions of the manufacturer if you're not sure. A top-quality replacement double-glazed sealed unit is constructed to exacting standards, and should fit into your frame with no hassle. However, a small error can have a major impact on the performance of your window and must be inspected with care. Modern double-glazed units can be a great addition to any home. They are energy efficient and save you money. They apply of argon in between the panes glass to keep them warm and decrease the amount of heat that escapes from your home during cold winter. Sometimes, these units may develop issues with their seals. This happens when moisture gets into the air cavity and creates condensation. Moisture in your window cavity is not just unsightly however it also decreases the effectiveness of the glazed unit. Condensation can be caused by a range of factors and the best method to determine the cause is to look for a hazy or hazy appearance between your windows. This indicates that the seal between the two glass panes has been broken and moisture is leaking into your living spaces. The first step is to take off the glass beads that surround the edges of the window. It can be a bit tricky and messy, but it's worth it because you will have access to the wedge gasket that holds your glass in position. It is crucial to take care when removing the beads so that they don't fall off. Asking for help can be beneficial at this point. After the beads have been removed and the sealed unit is free of them, allow it to loosen a bit of the frame. With a helper, hold it in place while you accurately measure its width, height and thickness. This information is essential because it determines the size of the wedge gasket that must be cut to accommodate the double glazed unit. Checking Double glazing units or sealed units, as they are commonly called, can fail in time. This normally occurs due to a breach in the seal that allows condensation and moisture to enter the space between the panes. This can affect the way the window is able to block out cold air, heat produced by the heating system within the home, and solar heat inside. A seal failure can cause draughts to be felt within the home. It is crucial to check regularly your double-glazed windows for indications of failure. Moisture or misting in between the glass is an indication that the seal has failed and a replacement should be installed. If you do need to replace a sealed unit, it is crucial that the new unit is the right size to fit. The uPVC frames that the sealed unit sits in are not tolerant of movement so even just a few millimetres over could affect the performance of the window. Talk to a professional or consult the guidelines that is provided by the manufacturer to ensure that you purchase the right size. With the help of a friend holding the new piece, gently place it in the frame. This should be done in a secure location as the glass could break if it falls out. Once the sealed unit is secure within the frame, re-attach any packers on the bottom of the frame and then put the glass beads back in their original positions. After you have completed this take the window for an inspection thoroughly to make sure there are no gaps, and that it is not misaligned. It is possible to apply a small amount of sealant around the frame's perimeter to stop it from moving. Reviewing the thickness of the unit is also recommended. Double glazed units come in various thicknesses. Using the wrong one can have a negative impact on the u value of your home. Sealing Double glazing is a great method to increase your home's thermal efficiency and enhance audio quality by reducing the transfer of sound. Over time, the seals on the glass may be worn out, resulting in misted or drooping windows. In these instances replacement is required. It's a good idea employ a double glazing professional who will help you choose the best glass products, take accurate measurements, and ensure proper installation. The first thing to be done when replacing a sealed unit is to clean the frame. You can make use of an old paint brush (4 inch is ideal) to clean the frame by removing dust and cobwebs that have built up within the frame over time. It's a great idea clean the new seals once the frame has been cleaned. It is easy to remove the wedge gaskets from the friction joint by placing your fingers along the edge of the gasket and pulling it away. You should also make an outline of the length that you require for your new seals as it will be useful in cutting them to the required size. After the gaskets have been cleaned and the frame cleaned up it's time to put in the sealed unit. It's a good idea remove the beads (the UPVC frames clips that are used to hold the glasses) and then measure them. 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 in place you can insert the first bead and move on to the remaining three. After sealing the units, do not contact them for several hours as the silicone sealant has to harden and set. I typically wait 6 hours before handling it, but the silicone sealant setting time will vary. Finishing When the new double-glazed unit is secure within its frame and is sealed, it's time to seal and finish. This step is not only an actual finish to the project, but also a statement that your home is prepared to withstand the elements now that its new secured guardian is installed. The first step involves cleaning the frame and taking out any glazing beads, strips or other materials that were used to secure the old glass. The frame is then cleaned of any dirt, old sealant, and glazing tape. repairmywindowsanddoors rejuvenates the frame made of timber or aluminium. It's also a good time to assess any damages and make small repairs, using wood filler or sanding when necessary. For more serious damage you must seek out a professional. The spacer tubes are then be filled with desiccants in order to take in any moisture that could have accumulated between the two panes during manufacturing or over time. This is a standard practice for a warm edge seal. Thermoseal Group stocks desiccants as well as manual and automated desiccant dispensing equipment. After the spacers are filled with glass, the frame and glass are sealed using a high-performance silicon, designed to tolerate Australia's harsh climate. The sealant creates a barrier that's both robust and flexible that can expand and contract without becoming brittle or breaking. It is essential to choose the right thickness, as any gaps can impact the thermal performance. If you're not sure about the right thickness to use, consult with a professional or manufacturer's guide. The final step involves adding secondary sealant. It is typically polyisobutylene or a similar material. This is applied to the outside edges of the frame and creates a secondary seal that's capable of repelling moisture and prevent air penetration and increase the efficiency of energy. The frame is then finished with an aluminum cladding. It's a protective coating that is resistant to the elements, keeping your frame looking new for years to be. This is a wise investment to ensure the durability and aesthetics of your frames, particularly if you have federation or period style homes with timber frames that are prone to rot.