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Replacement Double Glazed Units Double glazed units, or sealed units as they're also called, may be damaged over time. This occurs when the insulating properties of gasses that insulate the glass panes break down. If a window has fallen down, it's crucial 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 installed correctly, the new unit 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 adjust the existing 'packers' (usually red or blue slips of plastic) within the frame to ensure that it is properly placed. If you're not sure what to do, consult your installer or the instructions of the manufacturer for advice. double glazing seal repair repairmywindowsanddoors -quality replacement double-glazed sealed unit is made to exacting standards, and should fit into your frame with no hassle. A small mistake can have an enormous impact on the performance of your window and must be inspected attentively. 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 provide insulation and cut down on the amount of heat that escapes your home during cold winter. However, in some cases, these units break down or develop problems with their seals. This is usually the case when moisture is introduced into the air space of the glass and causes condensation between the panes. The presence of moisture in the window's cavity is not only unsightly but also decreases the efficiency and effectiveness of the glazed unit. Condensation can be caused by a variety of causes. The most effective method to test for it is to look for a hazy or hazy appearance between the windows. This indicates that the seal between the two panes of glass has broken down and moisture is flowing into your living spaces. The first step to take is to remove the glazing beads from around the edges of your window. It can be difficult and messy, but it is worth the effort because it lets you access the wedge gasket which keeps your glass in place. You will need to remove the beads with care to ensure that they don't break and it's often an excellent idea to ask for help at this point. Once the beads are 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 take measurements of its length, width and height. This is crucial as it will help you determine the size wedge gasket to cut for your brand new double glazed sealed units. Checking Double glazing units or sealed units as they are commonly called and can fail over time. It is usually due to an opening in the seal, which allows moisture and condensation into the space between the panes. This affects the ability of the window to keep cold air out, warmth produced by the heating system in and solar gain from the sun inside. Failure of the seal can cause draughts to be felt in the home. It is important to regularly check your double-glazed windows for indications of failure. The presence of mist or moisture between the glass is an sign that the seal has failed and a replacement unit is required. If you must replace a sealed unit it is essential that the replacement unit is of the right size to fit. The uPVC frames on which the sealed unit is installed have a very small tolerance for movement, so even a few millimetres could impact the performance of the windows. Get advice from a professional or follow the guide supplied by the manufacturer to ensure that you get the correct size. With the help of a friend holding the new piece, gently move it into the frame. It is essential that you place it in a secure spot since the glass is fragile and could fall out and break. After the sealed unit has been secured in the frame, reattach any packers on the bottom of the frame, and then replace the glazing beads back into their original position. After you have completed this, give the entire window a visual inspection to ensure there are no gaps or misalignments that could compromise its performance. It is also possible to add a bead of sealant around the perimeter edge of the frame to stop it from shifting in the future. Checking the thickness of the unit is a good thing to do. This is important as double-glazed units come in various thicknesses and using the wrong thickness could affect the u-value of your home's insulation. Sealing Double glazing can increase the efficiency of your home and offer better audio. However, with time, the glass's seals can get worn out, leading to misty windows and a reduction in performance. In these instances replacement is required. It's a good idea to work with a double glazing expert who can assist you in selecting the most suitable glass products, make precise measurements and ensure that the installation is done correctly. If you are replacing a sealed unit, the first step is clean the frame. You can make use of an old paintbrush (4 inches is the ideal size) to clean the frame, removing dust and cobwebs which build up within the frame over time. It's a great idea clean the new seals after the frame has been cleaned. It is easiest to remove gaskets for the wedge from the friction joint by placing your fingers on the edge of the gasket and pulling it out. Make a note of the length of time you'll need your new seals. This will assist when cutting them. Installation of the sealed unit is easy once the frame and gaskets have been cleaned. To ensure the best results when doing this it's a good idea to cut off the beads (the UPVC frame clips that are used to hold the glass) and then measure these. This will ensure the seal is built to the right size and there aren't any gaps in it. After the beads are in place, you can put in the top bead, and then proceed to the next three. After sealing the units, you should not touch them for a few hours as the silicone sealant needs to set and harden. I typically wait around 6 hours to handle it, but the silicone sealant setting time will vary. Finalization Once the new double glazed unit is securely seated within its frame It's time to seal and finish. This is more than just a physical closure to the project. It's an affirmation that your home is ready to weather the elements with its brand new safe guardian in the right place. The first step is cleaning the frame and taking out any glazing beads strips, or other materials that were used to secure the old glass. The frame is free of dust and sealants that have been used for years, as well as glazing tape, a procedure which also renews the timber or aluminium of the window's frame. This is also the time to make any small repairs using wood filler and sanding, if necessary. For more serious damage it is recommended to seek out an expert. Next, the tubes for the spacer are filled with desiccants to adsorb any moisture trapped in-between the two panes of glass during manufacture or over time. This is a typical procedure for units with warm edges. Thermoseal Group stocks a range of desiccants and manual or automatic desiccant dispensers. After the spacers are filled and sealed, the glass is then sealed with a high-performance silicone that is designed to withstand the harsh conditions of Australia's climate. This sealant creates a tight barrier that's both durable and flexible, able to expand and expand without becoming brittle or breaking. It is essential to choose the right thickness since any gaps could affect thermal performance. Talk to a professional or consult the manufacturer's manual for more information on the thickness you should use. The final step is to add secondary sealant, typically polyisobutylene (PIB) or similar products. This is applied along the outside edges of frames to create an additional seal. It is able to repel moisture and stop air infiltration, improving the efficiency of energy. The frame is finished with aluminum cladding. This is a protective coating that can withstand the elements, and keep your frame looking new for a long time to be. It's a wise investment in the long-term stability of your home's frame particularly in the case of federation or period homes where wooden frames are susceptible to rot and degradation.