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Replacement Double Glazed Units Over time double glazed units (or sealed units as they are often called) will break down. This is usually the case due to the insulating properties of the inert gas between the glass panes break down. It is crucial to replace a broken window to ensure that your home is fully energy efficient and insulated. The task is easy and straightforward to do at home. Installation If the window was installed correctly, the new window should fit comfortably and firmly within the frame. If the new unit isn't of the same thickness as the previous one, you may have to modify the existing 'packers' (usually red or blue slips of plastic) within the frame to ensure it is properly positioned. Consult your installer or the instructions provided by the manufacturer if you're uncertain. A top-quality replacement double-glazed sealed unit is constructed to exacting standards and should fit into your frame with ease. However, a small error could have a huge impact on the performance of your window, and should be examined with care. Modern double-glazed units are an excellent addition to any home. They are energy efficient and save you money. They use a layer argon between the panes of glass to insulate and decrease the amount of heat that can escape from your home in cold weather. However, sometimes these units fail or have problems with their seals. This typically happens when moisture enters the air cavity of the glass and creates condensation between the panes. The condensation in your window is not just ugly, but it also reduces the effectiveness of the glazed unit. Check for a fogginess or misty look between your window panes. This indicates that the seal between two panes is been broken and water is flowing in to your living space. The first step is to remove the glazing beads from around the edges of your window. This can be a little tricky and a bit messy, but it's worth the effort as it lets you access the wedge gasket which holds your glass in place. It is important to remove the beads with care so they don't break. Asking for help can be a good idea at this point. After the beads are removed, allow the sealed unit to fall slightly from the frame. With an assistant, hold it in position while you measure it accurately height, width and the thickness. This is crucial as it will help you determine the size wedge gasket to cut for your newly double-glazed sealed units. Checking Double glazing units, or sealed units, as they are often called, can break down over time. This usually happens due to a break in the seal, which allows moisture and condensation to infiltrate the space between the panes. This can affect the capacity of the window to keep cold air out, and warm produced by the heating system in, and solar gain from the sun's energy inside. Failing seals can also cause draughts to be felt within the home. Double-glazed windows must be inspected regularly for indications of failure. A misting or a haze of moisture in the glass is an indication that the seal has failed and a replacement is required. If you must replace a sealed unit, it is essential that the new one is the right size to fit. The uPVC frames on which the sealed unit is placed have a very limited tolerance for movement, meaning that even a few millimetres can impact the performance of the windows. To ensure that you're ordering the right size, it's best to consult an expert or the manufacturer's manual. Slide the new unit into the frame with the assistance of a partner. It is essential that you do this in a secure spot because the glass is fragile and may be thrown out and break. After the sealed unit is securely within the frame, re-attach any packers that are at the bottom of the frame and then place the glazing beads back into their original position. Once you have done this give the whole window a visual examination to ensure that there are no gaps or misalignments that could affect its performance. You may need to add a small amount of sealant around the edges of the frame to stop it from moving. It is recommended to check the thickness of the glass unit. Double glazed units come in different thicknesses. If double glazed window seal repair choose the wrong one, it can have a negative impact on the u value of your home. Sealing Double glazing is a great method to increase the efficiency of your home's heating system and provide improved acoustics by cutting down on the transfer of sound. However, over time, the glass's seals may be damaged, resulting in misty windows and a reduction in performance. In these situations it is necessary to replace the glass. It is a good idea to collaborate with an experienced double glazing contractor who can help you choose the appropriate glass, ensure accurate measurements, and ensure proper installation. The first thing that needs 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 the best) to sweep the frame clean by removing dust and cobwebs that accumulate in the frame over time. Once the frame is clean it's a good idea to give the seals that are new a thorough clean too. The easiest method for doing this is to lever out the gaskets on the Wedge by placing your fingers on the edge and then pulling it out until you reach the point where it is in contact with the friction joint. Note down the time frame you'll need to use your new seals. This will assist when cutting them. Once the gaskets are clean and the frame is clean, it's time to install the sealed unit. To ensure the best results when doing this, it's recommended to prise out the beads (the UPVC frame clips that support the glass) and then measure them. This will ensure that the seal is made to the right size and will not leave gaps around it. After the beads are in place you can insert the first bead and proceed to the next three. You should be cautious 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 usually let it sit for about 6 hours before handling but this could vary based on your silicone sealant's setting time. Finalization After the double-glazed unit is securely seated within its frame, it's time to seal and complete. This isn't just an actual finishing touch to the project it also signifies that your home is well-equipped to stand the test of time now that its new safe guardian is in place. The first step involves cleaning the frame and taking out any glazing beads strips or other materials that were used to hold the old glass. The frame is free of dirt and old sealant as well as glazing tape, a process that also revitalizes the wood or aluminium of the window's frame. It is also a good time to evaluate any damages and make small repairs by using wood filler or sanding if necessary. If you have a major issue it is recommended to consult a professional. The spacer tubes are then be filled with desiccants in order to absorb any moisture that might have accumulated between the two panes in the process of manufacturing or over time. This is the standard procedure for a warm edge sealed unit. Thermoseal Group stocks a range of desiccants, as well as manual and automatic desiccant dispensers. After the spacers have been filled with the spacers, the glass and frame are sealed using a high-performance silicon, specifically designed to withstand Australia's tough climate. This sealant forms a barrier that's strong and flexible capable of expanding and expand without becoming brittle or breaking. It is important to use the right thickness since any gaps could affect thermal performance. If you're not sure of the right thickness to use seek advice from an expert or the manufacturer's guidelines. The final step is to apply a secondary sealant, which is typically polyisobutylene (PIB) or similar products. It's applied to edges of the frame's exterior and creates a secondary seal able to repel moisture and block air from entering which can increase the efficiency of energy. The frame is finished with aluminum cladding. This protective coating will withstand the weather and keep your frame looking brand new for many years. It is a wise investment to ensure the durability and aesthetics of your frames, particularly if you have period or federation style homes that have timber frames that are susceptible to rot.