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Replacement Double Glazed Units Double-glazed units, or sealed units, as they're known, can wear out over time. This typically happens due to the insulating properties of the inert gas between the glass panes degrade. If a window has been damaged down, it is essential to replace the window to ensure your home is fully insulated and energy efficient. Fortunately the task is relatively easy and straightforward to do at home. Installation If the window is properly installed, the new window will fit firmly in place and sit comfortably inside the frame. If the new unit isn't the same thickness as the older one, then you might need to alter the “packers” (usually red or blue slips of plastic) in the frame to ensure that it is properly positioned. If you're not sure how to proceed, consult your installer or the manufacturer's instructions for guidance. A high-quality replacement double-glazed sealed unit is made to exacting standards, and should fit your frame with minimal fuss. A small error could have a major impact on the performance of your window. Modern double glazed units are a fantastic energy efficient addition to any home. They use an argon gas layer between the panes to insulate and thus reduce the amount of heat that will escape your home in cold weather. Sometimes, these units develop issues with their seals. This happens when moisture enters the air cavity and creates condensation. The moisture that is absorbed by the window's cavity is not just unsightly, but also reduces the effectiveness and efficiency of the glass unit. Look for a fogginess or misty appearance in between your window panes. This indicates that the seal between two panes has broken and moisture is leaking in to your living space. The first step is to remove the glazing beads around the edges of your window. It can be a bit tricky and messy, but it's worth it as you will have access to the wedge gasket which holds your glass in position. You'll need to take off the beads with care so that they do not break and it's often an excellent idea to seek help at this point. After the beads have been removed then allow the sealed unit a little to fall out of the frame. With the help of a person holding it in place while you accurately measure its length, width and height. This information is essential because it will determine the size wedge gasket you need to cut for your brand new double glazed sealed units. Checking Double glazing units, or sealed units as they are often referred to and can fail over time. This is usually due to a break in the seal, which allows condensation and moisture to get into the space between the panes. This affects the ability of the window to keep cold air out, and warm generated by the home's heating in, and solar gain from the sun inside. Seal failure can also cause draughts in the home. It is crucial to check regularly your double glazed windows for indications of failure. If you see water or mist forming between the glass, this is an indication that the seal is failing and a replacement unit must be installed. If you have to replace a sealed unit it is essential that the new one is the correct size to fit. The uPVC frames that the sealed unit is placed have a very small tolerance for movement, meaning that even a few millimetres could impact the performance of the windows. Consult a professional or the instructions supplied by the manufacturer to ensure you get the correct size. Place the new unit into the frame with the assistance of a companion. This must be done in a secure area as the glass may break if it falls. After the sealed unit is secure in the frame, reconnect any packers on the bottom of the frame, and then put the glass beads back into their original position. After you've completed this take the window for an extensive visual inspection to make sure there are no gaps, and that it is not misaligned. You may also need to add a bead of sealant around the perimeter edge of the frame in order to prevent it from shifting in the future. Re-checking the thickness of the unit is an excellent thing to do. This is crucial since double-glazed units are available in different thicknesses, and if you choose the wrong one, it could affect the u-value of your home's insulation. Sealing Double glazing is a great way to improve your home's thermal efficiency as well as improve acoustics by decreasing the transfer of sound. Over time, the seals of the glass may wear out resulting in windows that are drooping or misty. In these instances replacement is needed. It is a good idea to consult a double-glazing professional who can assist you in selecting the most suitable glass products, take precise measurements, and ensure proper installation. The first thing to be done when replacing the sealed unit is to clean the frame. Make use of an old paintbrush (4 inches is the best) to scrub the frame, removing dust that has built up over time. It's a good idea to clean the seals that have been installed after the frame has been cleaned. The most efficient method to do this is to remove the Wedge gaskets by putting your fingers on the edge, and then pulling it out until you reach the point where it is in contact with the friction joint. You should also make notes of the length you require to make your new seals, as it will be useful when cutting them to size. Installing the sealed unit is easy after the gaskets and frame have been cleaned. To get the best results when doing this it's a good idea to remove the beads (the UPVC frame clips that are used to hold the glass) and then measure these. This will ensure that the seal is constructed according to the correct dimensions and will not leave any gaps around it. After the beads are in their place, you can insert the top bead and then move on to the next three. Be careful not to touch the sealed units for a few minutes afterward, as the silicone sealant will require time to set and harden before you are able to handle it again. I typically leave it for about 6 hours prior to handling, but this can vary based on your silicone sealant's set times. Finalization The sealing and finalization of the project is now necessary once the new double-glazed unit has been securely installed within its frame. This step is more than a physical closure to the project; it's an affirmation that your home is prepared to face the elements with its brand new secure guardian securely in the right place. The first step involves cleaning the frame and removing any glazing beads strips, or other materials used to hold the old glass. The frame is then cleaned of dirt, sealant or glazing tape. This process also rejuvenates either the aluminium or timber frame. It's also a good time to assess any damage and make small repairs, by using wood filler or sanding if required. Damages that are severe should be reported to an expert to repair. window seal repair near me are then be filled with desiccants in order to absorb any moisture that may be trapped between the two panes in the process of manufacturing or over time. This is a common practice for a warm edge sealed unit. Thermoseal Group stocks desiccants as well as manual and automatic desiccant dispensing machines. After the spacers have been filled with glass, it is sealed with a high performance silicone that's designed to withstand Australia's harsh environment. This sealant creates a tight barrier that's both robust and flexible capable of expanding and expand without becoming brittle or breaking. It is important to use the right thickness since any gaps could impact the thermal performance. Ask a professional for advice or refer to the manufacturer's guide if you are unsure about the thickness you should use. The final step is to add secondary sealant. It is typically polyisobutylene or a similar material. This is applied along the edges of frames to form an additional seal. It is able to repel moisture and stop air infiltration, thus increasing energy efficiency. The frame is then adorned with an aluminum cladding. This is a coating that is resistant to the elements, and keep your frame looking new for many years to be. It is a wise investment for the long-term integrity and aesthetics of your frames, especially if you have federation or period homes with wooden frames that are susceptible to get rotted.